Inhaltsbereich

Publications

(Co) Author: Wickert, J.

Paper (ISI journals)

2013

Deng, Z.; Schön, S.; Zhang, H.; Bender, M.; Wickert, J. (2013): Medium-scale traveling ionospheric disturbances (MSTID) modeling using a dense German GPS network. Advances in Space Research, 51, 6, 1001-1007.
| EDOC: 19188 | 10.1016/j.asr.2012.07.022 |

Deng, Z.; Schön, S.; Zhang, H.; Bender, M.; Wickert, J. (2013): Medium-scale traveling ionospheric disturbances (MSTID) modeling using a dense German GPS network. Advances in Space Research, 51, 6, 1001-1007.
| EDOC: 20516 | 10.1016/j.asr.2012.07.022 |

Khodayar, S.; Kalthoff, N.; Wickert, J.; Kottmeier, C.; Dorninger, M. (2013): High-resolution representation of the mechanisms responsible for the initiation of isolated thunderstorms over flat and complex terrains: analysis of CSIP and COPS cases. Meteorology and Atmospheric Physics, 119, 3-4, 109-124.
| EDOC: 19756 | 10.1007/s00703-012-0232-6 |

Li, X.; Ge, M.; Zhang, H.; Nischan, T.; Wickert, J. (2013): The GFZ Real-time GNSS Precise Positioning Service System and its Adaption for COMPASS. Advances in Space Research, 51, 6, 1008-1018.
| EDOC: 18841 | 10.1016/j.asr.2012.06.025 |

Li, X.; Ge, M.; Zhang, X.; Zhang, Y.; Guo, B.; Wang, R.; Klotz, J.; Wickert, J. (2013): Real-time high-rate co-seismic displacement from ambiguity-fixed precise point positioning: Application to earthquake early warning. Geophysical Research Letters, 40, 2, 295-300.
| EDOC: 20590 | 10.1002/grl.50138 |

Steiner, A. K.; Hunt, D.; Ho, S.-P.; Kirchengast, G.; Mannucci, A. J.; Scherllin-Pirscher, B.; Gleisner, H.; v. Engeln, A.; Schmidt, T.; Ao, C.; Leroy, S. S.; Kursinski, E. R.; Foelsche, U.; Gorbunov, M.; Heise, S.; Kuo, Y.-H.; Lauritsen, K. B.; Marquardt, C.; Rocken, C.; Schreiner, W.; Sokolovskiy, S.; Syndergaard, S.; Wickert, J. (2013): Quantification of structural uncertainty in climate data records from GPS radio occultation. Atmospheric Chemistry and Physics, 13, 3, 1469-1484.
| EDOC: 19210 | Abstract | 10.5194/acp-13-1469-2013 | PDF |

2012

de la Torre, A.; Alexander, P.; Hierro, R.; Llamedo, P.; Rolla, A.; Schmidt, T.; Wickert, J. (2012): Large amplitude gravity waves above the Southern Andes, the Drake Passage and the Antarctic Peninsula. Journal of Geophysical Research, 117, D2, 15 PP.
| EDOC: 18840 | Abstract | 10.1029/2011JD016377 |

Ge, M.; Chen, J.; Dousa, J.; Gendt, G.; Wickert, J. (2012): A computationally efficient approach for estimating high-rate satellite clock corrections in realtime. GPS Solutions, 16, 1, 9-17.
| EDOC: 17956 | 10.1007/s10291-011-0206-z |

Ho, S.; Hunt, D.; Steiner, A.; Mannucci, A. J.; Kirchengast, G.; Gleisner, H.; Heise, S.; v. Engeln, A.; Marquardt, C.; Sokolovskiy, S.; Schreiner, W.; Ao, C.; Wickert, J.; Syndergaad, S.; Lauritsen, K.; Leroy, S.; Kursinski, R.; Kuo, Y.-H.; Scherllin-Pirscher, B.; Foelsche, U.; Schmidt, T.; Gorbunov, M. (2012): Reproducibility of GPS radio occultation data for climate monitoring: Profile-to-profile inter-comparison of CHAMP climate records 2002 to 2008 from six data centers. Journal of Geophysical Research, 117, D18111.
| EDOC: 19186 | Abstract | 10.1029/2012JD017665 |

Nafisi, V.; Urquhart, L.; Santos, M. C.; Nievinski, F. G.; Böhm, J.; Wijaya, D. D.; Schuh, H.; Ardalan, A. A.; Hobiger, T.; Ichikawa, R.; Zus, F.; Wickert, J.; Gegout, P. (2012): Comparsion of ray-tracing packages for tropsphere delays. IEEE Transactions on Geoscience and Remote Sensing, 50, 2, 469-481.
| EDOC: 17974 | Abstract | 10.1109/TGRS.2011.2160952 |

Pavelyev, A. G.; Liou, Y. A.; Zhang, K.; Wang, C. S.; Wickert, J.; Schmidt, T.; Gubenko, V. N.; Pavelyev, A. A.; Kuleshov, Y. (2012): Identification and localization of layers in the ionosphere using the eikonal and amplitude of radio occultation signals. Atmospheric Measurement Techniques, 5, 1, 1-16.
| EDOC: 17955 | Abstract | 10.5194/amt-5-1-2012 | PDF |

Semmling, M.; Schmidt, T.; Wickert, J.; Schön, S.; Fabra, F.; Cardellach, E.; Rius, A. (2012): On the Retrieval of the Specular Reflection in GNSS Carrier Observations for Ocean Altimetry. Radio Science, 47, 6, RS2018.
| EDOC: 19755 | Abstract | 10.1029/2012RS005007 |

Yue, X.; Schreiner, W. S.; Kuo, Y.-H.; Hunt, D. C.; Wnag, W.; Solomon, S. C.; Burns, A. G.; Bilitza, D.; Liu, J. Y.; Wan, W.; Wickert, J. (2012): Global 3-D ionospheric electron density reanalysis based on multisource data assimilation. Journal of Geophysical Research, 117, A09325.
| EDOC: 19187 | 10.1029/2012JA017968 |

Zus, F.; Bender, M.; Deng, Z.; Dick, G.; Heise, S.; Shangguan, M.; Wickert, J. (2012): A methodology to compute GPS slant total delays in a numerical weather model. Radio Science, 47, No. 2, RS2018.
| EDOC: 18839 | Abstract | 10.1029/2011RS004853 |

2011

Alexander, P.; de la Torre, A.; Llamedo, P.; Hierro, R.; Schmidt, T.; Faber [Haser], A.; Wickert, J. (2011): A method to improve the determination of wave perturbations close to the tropopause by using a digital filter. Atmospheric Measurement Techniques, 4, 9, 1777-1784.
| EDOC: 17342 | 10.5194/amt-4-1777-2011 | PDF |

Bender, M.; Dick, G.; Ge, M.; Deng, Z.; Wickert, J.; Kahle, H.-G.; Raabe, A.; Tetzlaff, G. (2011): Development of a GNSS water vapour tomography system using algebraic reconstruction techniques. Advances in Space Research, 47, 10, 1704-1720.
| EDOC: 16435 | 10.1016/j.asr.2010.05.034 | PDF |

Bender, M.; Stosius, R.; Zus, F.; Dick, G.; Wickert, J.; Raabe, A. (2011): GNSS water vapour tomography – Expected improvements by combining GPS, GLONASS and Galileo observations. Advances in Space Research, 47, 5, 886-897.
| EDOC: 16438 | 10.1016/j.asr.2010.09.011 | PDF |

Beyerle, G.; Grunwaldt, L.; Heise, S.; Köhler, W.; König, R.; Michalak, G.; Rothacher, M.; Schmidt, T.; Wickert, J.; Tapley, B. D.; Giesinger, B. (2011): First results from the GPS atmosphere sounding experiment TOR aboard the TerraSAR-X satellite. Atmospheric Chemistry and Physics, 11, 13, 6687-6699.
| EDOC: 16379 | Abstract | 10.5194/acp-11-6687-2011 | www.atmos-chem-phys.net/11/6687/2011 |

Corsmeier, U.; Kalthoff, N.; Barthlott, C.; Aoshima, F.; Behrendt, A.; Di Girolamo, P.; Dorninger, M.; Handwerker, J.; Kottmeier, C.; Mahlke, H.; Mobbs, S. D.; Norton, E. G.; Wickert, J.; Wulfmeyer, V. (2011): Processes driving deep convection over complex terrain: A multi-scale analysis of observations from COPS-IOP 9c. Quarterly Journal of the Royal Meteorological Society, 137, S1, 137-155.
| EDOC: 16983 | 10.1002/qj.754 |

Deng, Z.; Bender, M.; Zus, F.; Ge, M.; Dick, G.; Ramatschi, M.; Wickert, J.; Löhnert, U.; Schön, S. (2011): Validation of tropospheric slant path delays derived from single and dual frequency GPS receivers. Radio Science, 46, RS6007.
| EDOC: 17828 | 10.1029/2011RS004687 | PDF |

Pavelyev, A. G.; Zhang, K.; Wang, C. S.; Kuleshov, Y.; Liou, Y. A.; Wickert, J. (2011): Identification of Inclined Ionospheric Layers Using Analysis of GPS Occultation Data. IEEE Transactions on Geoscience and Remote Sensing, 49, 6, 2374-2384.
| EDOC: 16985 | 10.1109/TGRS.2010.2091138 |

Semmling, A. M.; Beyerle, G.; Stosius, R.; Dick, G.; Wickert, J.; Fabra, F.; Cardellach, E.; Ribó, S.; Rius, A.; Helm, A.; Yudanov, S. B.; d'Addio, S. (2011): Detection of Arctic Ocean tides using interferometric GNSS-R signals. Geophysical Research Letters, 38, L04103.
| EDOC: 16979 | 10.1029/2010GL046005 | PDF |

Stosius, R.; Beyerle, G.; Hoechner, A.; Wickert, J.; Lauterjung, J. (2011): The impact on tsunami detection from space using GNSS-reflectometry when combining GPS with GLONASS and Galileo on GNSS-Reflectometry tsunami detection from space. Advances in Space Research, 47, 5, 843-853.
| EDOC: 16450 | 10.1016/j.asr.2010.09.022 |

Zus, F.; Beyerle, G.; Heise, S.; Schmidt, T.; Wickert, J.; Marquardt, C. (2011): Validation of refractivity profiles derived from GRAS raw-sampling data. Atmospheric Measurement Techniques, 4, 7, 1541-1550.
| EDOC: 17341 | Abstract | 10.5194/amt-4-1541-2011 | PDF |

Zus, F.; Wickert, J.; Bauer, H. S.; Schwitalla, Th.; Wulfmeyer, V. (2011): Experiments of GPS slant path data assimilation with an advanced MM5 4DVAR system. Meteorologische Zeitschrift, 20, 2, 173-184.
| EDOC: 17975 | 10.1127/0941-2948/2011/0232 |

2010

Alexander, P.; Luna, D.; de la Torre, A.; Llamedo, P.; Schmidt, T.; Wickert, J. (2010): A comparative and numerical study of effects of gravity waves in small miss-distance and miss-time GPS radio occultation temperature profiles. Advances in Space Research, 45, 10, 1231-1234.
| EDOC: 16039 | 10.1016/j.asr.2009.12.015 |

de la Torre, A.; Llamedo, P.; Alexander, P.; Schmidt, T.; Wickert, J. (2010): Estimated Errors in a Global Gravity Wave Climatology from GPS Radio Occultation Temperature Profiles. Advances in Space Research, 46, 2, 174-179.
| EDOC: 15009 | 10.1016/j.asr.2010.02.033 |

Khandu, J.; Awange, L.; Wickert, J.; Schmidt, T.; Sharifi, M. A.; Heck, B.; Fleming, K. (2010): GNSS remote sensing of the Australian tropopause. Climatic Change, 105, 3-4, 597-618.
| EDOC: 16374 | 10.1007/s10584-010-9894-6 |

Khodayar, S.; Kalthoff, N.; Wickert, J.; Corsmeier, U.; Morcrette, C.; Kottmeier, C. (2010): The increase of spatial data resolution for the detection of the initiation of convection. A case study from CSIP. Meteorologische Zeitschrift, 19, 2, 179-198.
| EDOC: 15011 | 10.1127/0941-2948/2010/0439 |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Schmidt, T.; Pavelyev, A. A. (2010): Phase acceleration: a new important parameter in GPS occultation technology. GPS Solutions, 14, 1, 3-11.
| EDOC: 14286 | 10.1007/s10291-009-0128-1 |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Zhang, K.; Wang, C. S.; Kuleshov, Y. (2010): Analytical model of electromagnetic waves propagation and location of inclined plasma layers using occultation data. Progress In Electromagnetics Research, 106, 177-202.
| EDOC: 16040 | 10.2528/PIER10042707 |

Schmidt, T.; Cammas, J.-P.; Smit, H. G. J.; Heise, S.; Wickert, J.; Faber [Haser], A. (2010): Observational characteristics of the tropopause inversion layer derived from CHAMP/GRACE radio occultations and MOZAIC aircraft data. Journal of Geophysical Research, 115, D24304.
| EDOC: 16369 | 10.1029/2010JD014284 | PDF |

Schmidt, T.; Wickert, J.; Faber [Haser], A. (2010): Variability of the upper troposphere and lower stratosphere observed with GPS radio occultation bending angles and temperatures. Advances in Space Research, 46, 2, 150-161.
| EDOC: 15010 | 10.1016/j.asr.2010.01.021 |

Stosius, R.; Beyerle, G.; Helm, A.; Hoechner, A.; Wickert, J. (2010): Simulation of space-borne tsunami detection using GNSS-Reflectometry applied to tsunamis in the Indian Ocean. Natural Hazards and Earth System Sciences (NHESS), 10, 6, 1359-1372.
| EDOC: 15346 | 10.5194/nhess-10-1359-2010 | PDF |

Yakovlev, O. I.; Wickert, J.; Pavelyev, A. G.; Cherkunova, G. P.; Anufriev, V. A. (2010): Results of radio occultation measurement of polar ionosphere at satellite-to-satellite paths during strong flare solar activity. Acta Astronautica, 67, 3-4, 315-323.
| EDOC: 16292 | 10.1016/j.actaastro.2010.02.017 |

2009

Arras, C.; Jacobi, C.; Wickert, J. (2009): Semidiurnal tidal signature in sporadic E occurrence rates derived from GPS radio occultation measurements at higher midlatitudes. Annales Geophysicae, 27, 6, 2555-2563.
| EDOC: 13372 | PDF |

Bender, M.; Dick, G.; Wickert, J.; Ramatschi, M.; Ge, M.; Gendt, G.; Rothacher, M.; Raabe, A.; Tetzlaff, G. (2009): Estimates of the information provided by GPS slant data observed in Germany regarding tomographic applications. Journal of Geophysical Research, 114, D06303.
| EDOC: 13107 | 10.1029/2008JD011008 | PDF |

Beyerle, G.; Ramatschi, M.; Galas, R.; Schmidt, T.; Wickert, J.; Rothacher, M. (2009): A data archive of GPS navigation messages. GPS Solutions, 13, 1, 35-41.
| EDOC: 11546 | 10.1007/s10291-008-0095-y | PDF |

Deng, Z.; Bender, M.; Dick, G.; Ge, M.; Wickert, J.; Ramatschi, M.; Zou, X. (2009): Retrieving tropospheric delays from GPS networks densified with single frequency receivers. Geophysical Research Letters, 36, L19802.
| EDOC: 13815 | 10.1029/2009GL040018 |

Foelsche, U.; Pirscher, B.; Borsche, M.; Kirchengast, G.; Wickert, J. (2009): Assessing the climate monitoring utility of radio occultation data: From CHAMP to FORMOSAT-3/COSMIC. Terrestrial Atmospheric and Oceanic Sciences, 20, 1, 155-170.
| EDOC: 13110 | 10.3319/TAO.2008.01.14.01(F3C) |

Heise, S.; Dick, G.; Gendt, G.; Schmidt, T.; Wickert, J. (2009): Integrated water vapor from IGS ground-based GPS observations: Initial results from a global 5-minute data set. Annales Geophysicae, 27, 7, 2851-2859.
| EDOC: 13798 | 10.5194/angeo-27-2851-2009 | PDF |

Ho, S.-P.; Kirchengast, G.; Leroy, S.; Wickert, J.; Mannucci, A. J.; Stiner, A. K.; Hunt, D.; Schreiner, W.; Sokolovskiy, S.; Ao, C. O.; Borsche, M.; von Engeln, A.; Foelsche, U.; Heise, S.; Iijima, B.; Kuo, Y.-H.; Kursinski, R.; Pirscher, B.; Ringer, M.; Rocken, C.; Schmidt, T. (2009): Estimating the Uncertainty of using GPS Radio Occultation Data for Climate Monitoring: Inter-comparison of CHAMP Refractivity Climate Records 2002-2006 from Different Data Centers. Journal of Geophysical Research, 114, D23107.
| EDOC: 13813 | 10.1029/2009JD011969 |

Huang, C. Y.; Cheng, C. Z.; Lin, P. H.; Fong, C. J.; Wickert, J.; Hsiao, C. C. (2009): Radio occultation retrieval of atmospheric profiles from the FORMOSAT-3/COSMIC mission: early results. Terrestrial Atmospheric and Oceanic Sciences, 20, 1, 21-34.
| EDOC: 13108 | 10.3319/TAO.2008.04.24.01(F3C) |

Llamedo, P.; de la Torre, A.; Alexander, P.; Luna, D.; Schmidt, T.; Wickert, J. (2009): A gravity wave analysis near to the Andes Range from GPS radio occultation data and mesoscale numerical simulations: Two case studies. Advances in Space Research, 44, 4, 494-500.
| EDOC: 14413 | 10.1016/j.asr.2009.04.023 |

Pavelyev, A.; Liou, Y. A.; Wickert, J.; Gavrik, A. L.; Lee, C. C. (2009): Eikonal acceleration technique for studying of the Earth and planetaryatmospheres by radio occultation method. Geophysical Research Letters, 36, L21807.
| EDOC: 14288 | 10.1029/2009GL040979 |

Wickert, J.; Michalak, G.; Schmidt, T.; Beyerle, G.; Cheng, C. Z.; Healy, S. B.; Heise, S.; Huang, C. Y.; Jakowski, N.; Köhler, W.; Mayer, C.; Offiler, D.; Ozawa, E.; Pavelyev, A. G.; Rothacher, M.; Tapley, B.; Arras, C. (2009): GPS radio occultation: results from CHAMP, GRACE and FORMOSAT-3/COSMIC. Terrestrial Atmospheric and Oceanic Sciences, 20, 1, 35-50.
| EDOC: 13109 | 10.3319/TAO.2007.12.26.01(F3C) |

Yakovlev, O. I.; Wickert, J.; Pavelyev, A. G.; Matyugova, S. S.; Anufrieva, V. A. (2009): Sporadic structures in equatorial ionosphere as revealed from GPS occultation data. Acta Astronautica, 63, 11-12, 1350-1359.
| EDOC: 13130 | 10.1016/j.actaastro.2008.05.023 |

2008

Arras, C.; Wickert, J.; Beyerle, G.; Heise, S.; Schmidt, T.; Jacobi, C. (2008): A global climatology of ionospheric irregularities derived from GPS radio occultation. Geophysical Research Letters, 35, L14809.
| EDOC: 12677 | Abstract | 10.1029/2008GL034158 |

Bender, M.; Dick, G.; Wickert, J.; Schmidt, T.; Song, S.; Gendt, G.; Ge, M.; Rothacher, M. (2008): Validation of GPS slant delays using water vapour radiometers and weather models. Meteorologische Zeitschrift, 17, 6, 807-812.
| EDOC: 12681 | 10.1127/0941-2948/2008/0341 | PDF |

Heise, S.; Wickert, J.; Beyerle, G.; Schmidt, T.; Smit, H.; Cammas, J. P.; Rothacher, M. (2008): Comparison of Water Vapour and Temperature Results From GPS Radio Occultation Aboard CHAMP With MOZAIC Aircraft Measurements. IEEE Transactions on Geoscience and Remote Sensing, 46, 11, 3406-3411.
| EDOC: 12684 | 10.1109/TGRS.2008.920268 | PDF |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Pavelyev, A. A.; Schmidt, T.; Igarashi, K.; Matyugov, S. S. (2008): Location of layered structures in the ionosphere and atmosphere by use of GPS occultation data. Advances in Space Research, 42, 1, 224-228.
| EDOC: 12665 | 10.1016/j.asr.2008.02.006 |

Pavelyev, A. G.; Wickert, J.; Liou, Y. A. (2008): Localization of plasma layers in the ionosphere based on observing variations in the phase and amplitude of radiowaves along the satellite-to-satellite path. Radiophysics and Quantum Electronics, 51, 1, 1-8.
| EDOC: 11545 | 10.1007/s11141-008-9002-1 |

Schmidt, T.; de la Torre, A.; Wickert, J. (2008): Global gravity wave activity in the tropopause region from CHAMP radio occultation data. Geophysical Research Letters, 35, L16807.
| EDOC: 12674 | Abstract | 10.1029/2008GL034986 |

Schmidt, T.; Wickert, J.; Beyerle, G.; Heise, S. (2008): Global tropopause height trends estimated from GPS radio occultation data. Geophysical Research Letters, Vol. 35, L11806.
| EDOC: 11543 | 10.1029/2008GL034012 |

Schmidt, T.; Wickert, J.; Heise, S.; Flechtner, F.; Fagiolini, E.; Schwarz, G.; Zenner, L.; Gruber, T. (2008): Comparison of ECMWF analyses with GPS radio occultations from CHAMP. Annales Geophysicae, 26, 11, 3225-3234.
| EDOC: 12707 | PDF |

Wrasse, C. M.; Fechine, J.; Takahashi, H.; Denardini, C. M.; Wickert, J.; Mlynczak, M. G.; Russell, J. M.; Barbosa, C. L. (2008): Temperature comparison between CHAMP radio occultation and TIMED/SABER measurements in the lower stratosphere. Advances in Space Research, 41, 9, 1423-1428.
| EDOC: 12591 | 10.1016/j.asr.2007.06.073 |

Yakovlev, O. I.; Wickert, J.; Pavelyev, A. G.; Matyugov, S. S.; Anufriev, V. A. (2008): Sporadic structures in equatorial ionosphere as revealed from GPS occultation data. Acta Astronautica, 63, 11-12, 1350-1359.
| EDOC: 12588 | 10.1016/j.actaastro.2008.05.023 |

2007

Alfred, J.; Fromm, M.; Bevilacqua, R.; Nedoluha, G.; Strawa, A.; Poole, L.; Wickert, J. (2007): Observations and analysis of polar stratospheric clouds detected by POAM III and SAGE III during the SOLVE II/VINTERSOL campaign in the 2002/2003 Northern Hemisphere winter. Atmospheric Chemistry and Physics, 7, 9, 2151-2163.
| EDOC: 10182 | PDF |

Awange, J. L.; Sharifi, M. A.; Ogonda, G.; Wickert, J.; Grafarend, E. W.; Omulo, M. A. (2007): The Falling Lake Victoria Water Level: GRACE, TRIMM and CHAMP Satellite Analysis of the Lake Basin. Water Resources Management, 22, 7, 775-796.
| EDOC: 10540 | 10.1007/s11269-007-9191-y |

Engeln, A. v.; Teixeira, J.; Wickert, J.; Buehler, S. (2007): Comment on 'Monitoring the atmospheric boundary layer by GPS radio occultation signals recorded in the open-loop mode' by S. Sokolovskiy et al.. Geophysical Research Letters, 34, L02806.
| EDOC: 10179 | 10.1029/2006GL027675 |

Foelsche, U.; Borsche, M.; Steiner, A.K.; Gobiet, A.; Pirscher, B.; Kirchengast, G.; Wickert, J.; Schmidt, T. (2007): Observing upper troposphere-lower stratosphere climate with radio occultation data from the CHAMP satellite. Climate Dynamics, 31, 1, 49-65.
| EDOC: 10538 | 10.1007/s00382-007-0337-7 | PDF |

Fröhlich, K.; Schmidt, T.; Ern, M.; Preusse, P.; de la Torre, A.; Wickert, J.; Jacobi, Ch. (2007): The global distribution of gravity wave energy in the lower stratosphere derived from GPS data and gravity wave modelling: Attempt and challenges. Journal of Atmospheric and Solar-Terrestrial Physics, 69, 17-18, 2238-2248.
| EDOC: 10539 | 10.1016/j.jastp.2007.07.005 |

Healy, S. B.; Wickert, J.; Michalak, G.; Schmidt, T.; Beyerle, G. (2007): Combined forecast impact of GRACE-A and CHAMP GPS radio occultation bending angle profiles. Atmospheric Science Letters, 8, 2, 43-50.
| EDOC: 10181 | 10.1002/asl.149 |

Nedoluha, G. E.; Alfred, J.; Benson, C. M.; Hoppel, K. W.; Wickert, J.; Koenig-Langlo, G. (2007): A comparison of radiosonde and GPS radio occultation measurements with meteorological temperature analyses in the Antarctic vortex, 1998-2004. Journal of Geophysical Research, 112, D16304.
| EDOC: 11025 | 10.1029/2007JD008928 |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Schmidt, T.; Pavelyev, A. A.; Liu, S. F. (2007): Effects of the ionosphere and solar activity on radio occultation signals: Application to CHAllenging Minisatellite Payload satellite observations. Journal of Geophysical Research, 112, A06326.
| EDOC: 10537 | 10.1029/2006JA011625 |

2006

Beyerle, G.; Schmidt, T.; Wickert, J.; Heise, S.; Rothacher, M.; König-Langlo, G.; Lauritsen, K. B. (2006): Observations and simulations of receiver-induced refractivity biases in GPS radio occultation. Journal of Geophysical Research, 111, D12101.
| EDOC: 8898 | 10.1029/2005JD006673 | PDF |

de la Torre, A.; Alexander, P.; Llamedo, P.; Menéndez, C.; Schmidt, T.; Wickert, J. (2006): Gravity waves above the Andes detected from GPS radio occultation temperature profiles: Jet mechanism?. Geophysical Research Letters, 33, L24810.
| EDOC: 9609 | 10.1029/2006GL027343 |

de la Torre, A.; Schmidt, T.; Wickert, J. (2006): A global analysis of wave potential energy in the lower stratosphere derived from 5 years of GPS radio occultation data with CHAMP. Geophysical Research Letters, 33, L24809.
| EDOC: 9608 | 10.1029/2006GL027696 |

Heise, S.; Wickert, J.; Beyerle, G.; Schmidt, T.; Reigber, C. (2006): Global monitoring of tropospheric water vapor with GPS radio occultation aboard CHAMP. Advances in Space Research, 37, 12, 2222-2227.
| EDOC: 9530 | Abstract | 10.1016/j.asr.2005.06.066 |

Liou, Y. A.; Pavelyev, A. G.; Wickert, J.; Liu, S. F.; Pavelyev, A. A.; Schmidt, T.; Igarashi, K. (2006): Application of GPS radio occultation method for observation of the internal waves in the atmosphere. Journal of Geophysical Research, 111, D06104.
| EDOC: 8839 | 10.1029/2005JD005823 |

Schmidt, T.; Beyerle, G.; Heise, S.; Wickert, J.; Rothacher, M. (2006): A climatology of multiple tropopauses derived from GPS occultations with CHAMP and SAC-C. Geophysical Research Letters, 33, L04808.
| EDOC: 8894 | 10.1029/2005GL024600 |

Wu, X. C.; Hu, X.; Zhang, X. X.; Wickert, J. (2006): A calibrated TEC method for inversion of ionospheric GPS occultation data. Chinese Journal of Geophysics, 49, 2, 275-281.
| EDOC: 9536 |

2005

Beyerle, G.; Schmidt, T.; Michalak, G.; Heise, S.; Wickert, J.; Reigber, C. (2005): GPS radio occultation with GRACE: Atmospheric profiling utilizing the zero difference technique. Geophysical Research Letters, Vol. 32, 13, L13806.
| EDOC: 7919 | Abstract | 10.1029/2005GL023109 | PDF |

Engeln, A. von; Teixeira, J.; Wickert, J.; Buehler, S. (2005): Using CHAMP radio occultation data to determine the top altitude of the Planetary Boundary Layer. Geophysical Research Letters, 32, 6, L06815.
| EDOC: 7188 | 10.1029/2004GL022168 |

Gobiet, A.; Foelsche, U.; Steiner, A.; Borsche, M.; Kirchengast, G.; Wickert, J. (2005): Climatological validation of stratospheric temperatures in ECMWF operational analyses with CHAMP radio occultation data. Geophysical Research Letters, 32, 12, L12806.
| EDOC: 7205 | 10.1029/2005GL022617 |

Liou, Y. A.; Pavelyev, A. G.; Wickert, J. (2005): Observation of the gravity waves from GPS/MET radio occultation data. Journal of Atmospheric and Solar-Terrestrial Physics, 67, 3, 219-228.
| EDOC: 8440 | 10.1016/j.jastp.2004.08.001 |

Liou, Y. A.; Pavelyev, A. G.; Wickert, J.; Schmidt, T.; Pavelyev, A. A. (2005): Analysis of atmospheric and ionospheric structures using the GPS/MET and CHAMP radio occultation database: a methodological review. GPS Solutions, 9, 2, 122-143.
| EDOC: 8444 | 10.1007/s10291-005-0141-y |

Pavelyev, A. G.; Wickert, J.; Liou, Y. A.; Reigber, C.; Schmidt, T.; Igarashi, K.; Pavelyev, A. A.; Matyugov, S. S. (2005): Different mechanisms of the ionospheric influence on GPS occultation signals. GPS Solutions, 9, 2, 96-104.
| EDOC: 7223 | 10.1007/s10291-005-0138-6 |

Pavelyev, A. G.; Wickert, J.; Schmidt, T.; Reigber, C.; Matyugov, S. S.; Pavelyev, A. A.; Liou, Y. A.; Igarashi, K. (2005): Effect of Solar Activity in Late October 2003 on Radio occultation Signals from the CHAMP German Satellite. Geomagnetism and Aeronomy, 45, 1, 134-139.
| EDOC: 7203 |

Schmidt, T.; Heise, S.; Wickert, J.; Beyerle, G.; Reigber, C. (2005): GPS radio occultation with CHAMP and SAC-C: global monitoring of thermal tropopause parameters. Atmospheric Chemistry and Physics, 5, 6, 1473-1488.
| EDOC: 7206 | PDF |

Wang, D. Y.; Clarmann, T. von; Fischer, H.; Funke, B.; Gil-López, S.; Glatthor, N.; Grabowski, U.; Höpfner, M.; Kaufmann, M.; Kellmann, S.; Kiefer, M.; Koukouli, M. E.; Linden, A.; López-Puertas, M.; Mengistu Tsidu, G.; Milz, M.; Steck, T.; Stiller, G. P.; Simmons, A. J.; Dethof, A.; Swinbank, R.; Marquardt, C.; Jiang, J. H.; Romans, L.; Wickert, J.; Schmidt, T.; Ill, R. J.; Remsberg, E. (2005): Validation of stratospheric temperatures measured by Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat. Journal of Geophysical Research, 110, D8, D08301.
| EDOC: 7204 | 10.1029/2004JD005342 |

Wickert, J.; Beyerle, G.; König, R.; Heise, S.; Grunwaldt, L.; Michalak, G.; Reigber, C.; Schmidt, T. (2005): GPS radio occultation with CHAMP and GRACE: A first look at a new and promising satellite configuration for global atmospheric sounding. Annales Geophysicae, 23, 3, 653-658.
| EDOC: 7700 | PDF |

2004

Awange, J.; Fukuda, Y.; Takemoto, S.; Wickert, J.; Aoyama, Y. (2004): Analytic solution of GPS atmospheric sounding refraction angles. Earth Planets Space, 56, 6, 573-587.
| EDOC: 6181 |

Beyerle, G.; Wickert, J.; Schmidt, T.; Reigber, C. (2004): Atmospheric sounding by global navigation satellite system radio occultation: An analysis of the negative refractivity bias using CHAMP observations. Journal of Geophysical Research, 109, D01106.
| EDOC: 5395 | Abstract | 10.1029/2003JD003922 |

Liou, Y. A.; Pavelyev, A. G.; Wickert, J.; Huang, C. Y.; Yan, S. K.; Liu, S. F. (2004): Response of GPS occultation signals to atmospheric gravity waves and retrieval of gravity wave parameters. GPS Solutions, 8, 2, 103-111.
| EDOC: 6183 | 10.1007/s10291-004-0090-x |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J. (2004): Diffractive vector and scalar integrals for bistatic radio-holographic remote sensing. Radio Science, 39, RS4011.
| EDOC: 6184 | 10.1029/2003RS002935 |

Schmidt, T.; Wickert, J.; Beyerle, G.; Reigber, C. (2004): Tropical tropopause parameters derived from GPS radio occultation measurements with CHAMP. Journal of Geophysical Research, 109, D13105.
| EDOC: 6186 | 10.1029/2004JD004566 |

Schmidt, T.; Wickert, J.; Marquardt, C.; Beyerle, G.; Reigber, C.; Galas, R.; König, R. (2004): GPS radio occultation with CHAMP: an innovative remote sensing method of the atmosphere. Advances in Space Research, 33, 7, 1036-1040.
| EDOC: 5700 |

Torre de la, A.; Tsuda, T.; Hajj, G. A.; Wickert, J. (2004): A global distribution of the stratospheric gravity wave activity from GPS occultation profiles with SAC-C and CHAMP. Journal of the Meteorological Society of Japan, 82, 1B, 407-417.
| EDOC: 6190 |

Tsai, H.-F.; Hajj, G. A.; Wickert, J.; Aoyama, Y. (2004): Equatorial Kelvin Waves Observed with GPS Occultation Measurements (CHAMP and SAC-C). Journal of the Meteorological Society of Japan, 82, No. 1B, 397-406.
| EDOC: 5413 |

Wang, D. Y.; Stiller, G. P.; v. Clarmann, T.; Fischer, H.; Lopez-Puertas, M.; Funke, B.; Gil-Lopez, S.; Glatthor, N.; Höpfner, M.; Kellmann, S.; Tsidu, G. M.; Milz, M.; Steck, T.; Jiang, J. H.; Ao, C. O.; Manney, G.; Hocke, K.; Wu, D. L.; Romans, L. J.; Wickert, J.; Schmidt, T. (2004): Cross-validation of MIPAS/ENVISAT and GPS-RO/CHAMP temperature profiles. Journal of Geophysical Research, 109, D19311.
| EDOC: 6194 | 10.1029/2004JD004963 |

Wickert, J.; Galas, R.; Beyerle, G.; Reigber, C.; Förste, C.; Ramatschi, M. (2004): Atmospheric sounding with CHAMP: GPS ground station data for occultation processing. Physics and Chemistry of the Earth, Parts A/B/C, 29, 2-3, 267-275.
| EDOC: 5406 | 10.1016/j.pce.2004.01.015 |

Wickert, J.; Pavelyev, A. G.; Liou, Y. A.; Schmidt, T.; Reigber, C.; Igarashi, K.; Pavelyev, A. A.; Matyugov, S. (2004): Amplitude variations in GPS signals as a possible indicator of ionospheric structures. Geophysical Research Letters, 31, L24801.
| EDOC: 6178 | 10.1029/2004GL020607 |

Wickert, J.; Schmidt, T.; Beyerle, G.; König, R.; Reigber, C.; Jakowski, N. (2004): The Radio Occultation Experiment aboard CHAMP: Operational Data Analysis and Validation of Vertical Atmospheric Profiles. Journal of the Meteorological Society of Japan, 82, No. 1B, 381-395.
| EDOC: 5412 |

Wickert, J.; Yakovlev, O.I.; Pavelyev, A.G.; Matygov, S.S.; Samosnayev, L.N.; Anufried, W.A. (2004): Ionospheric fluctuations of decometer waves in satellite-satellite links. Journal of Communications Technology and Electronics, 49, 10, 1184-1191.
| EDOC: 6315 |

2002

Beyerle, G.; Hocke, K.; Wickert, J.; Schmidt, T.; Marquardt, C.; Reigber, C. (2002): GPS radio occultations with CHAMP: A radio holographic analysis of GPS signal propagation in the troposphere and surface reflections. Journal of Geophysical Research, 107, D24.
| EDOC: 3409 |

Igarashi, K.; Pavelyev, A. G.; Wickert, J.; Hocke, K.; Pavelyev, D. A. (2002): Application of radio holographic method for observation of altitude variations of the electron density in the mesophere/lower thermosphere using GPS/MET radio occultation data. Journal of Atmosphere and Solar-Terrestrial Physics, 64, 959-969.
| EDOC: 3316 |

Pavelyev, A. G.; Liou, Y. A.; Reigber, C.; Wickert, J.; Igarashi, K.; Hocke, K.; Huang, C.-Y. (2002): GPS radio holography as a tool for remote sensing of the atmosphere, mesosphere, and terrestrial surface from space. GPS Solutions, 6, 1-2, 100-108.
| EDOC: 3411 | 10.1007/s10291-002-0025-3 |

Wickert, J.; Beyerle, G.; Hajj, G. A.; Schwieger, V.; Reigber, C. (2002): GPS radio occultation with CHAMP: Atmospheric profiling utilizing the space-based single difference technique.. Geophysical Research Letters, 29, 8, 10.1029.
| EDOC: 3319 | 10.1029/2001GL013982, |

2001

Galas, R.; Wickert, J.; Burghardt, W. (2001): High rate low latency GPS ground tracking network for CHAMP. Physics and Chemistry of the Earth (A), 26, 6-8, 649-652.
| EDOC: 2326 |

Hocke, K.; Igarashi, K.; Nakamura, M.; Wilkinson, P.; Wu, J.; Pavelyev, A. G.; Wickert, J. (2001): Global sounding of sporadic E layers by the GPS/MET radio occultation experiment. Journal of Atmospheric and Solar-Terrestrial Physics, 63, 18, 1973-1980.
| EDOC: 2342 | Abstract |

Igarashi, K.; Pavelyev, A.; Hocke, K.; Pavelyev, D.; Wickert, J. (2001): Observation of wave structures in the upper atmosphere by means of radio holografic analysis of the radio occultation data. Advances in Space Research, 27, 6-7, 1321-1326.
| EDOC: 6199 |

Marquardt, C.; Labitzke, K.; Reigber, C.; Schmidt, T.; Wickert, J. (2001): An Assessment of the quality of GPS/MET radio limb soundings during February 1997. Physics and Chemistry of the Earth (A), 3, 26, 125-130.
| EDOC: 2324 | Abstract | 10.1016/S1464-1895(01)00035-7 |

Wehrenpfennig, A.; Jakowski, N.; Wickert, J. (2001): A Dynamically Configurable System for operational Processing of Space Weather Data. Physics and Chemistry of the Earth (C), 26, 8, 601-604.
| EDOC: 2343 | Abstract | 10.1016/S1464-1917(01)00054-X |

Wickert, J.; Galas, R.; Beyerle, G.; König, R.; Reigber, C. (2001): GPS Ground Station Data for CHAMP Radio Occultation Measurements. Physics and Chemistry of the Earth (A), 26, 6-8, 503-511.
| EDOC: 2337 | Abstract | 10.1016/S1464-1895(01)00092-8 |

Wickert, J.; Reigber, C.; Beyerle, G.; König, R.; Schmidt, T.; Grunwaldt, L.; Galas, R.; Meehan, T.; Melbourne, W. G.; Hocke, K. (2001): Atmosphere sounding by GPS radio occultation: First Results from CHAMP. Geophysical Research Letters, 28, 17, 3263-3266.
| EDOC: 2345 | Abstract | PDF |

TOP

Paper (further journals)

2013 online first

Faber, A.; Llamedo, P.; Schmidt, T.; de la Torre, A.; Wickert, J. (2013 online first): A new approach to global gravity wave momentum flux determination from GPS radio occultation data. Atmospheric Measurement Techniques Discussion, 6, 2, 2907-2933.
| EDOC: 20607 | 10.5194/amtd-6-2907-2013 |

2006

Notarpietro, R.; Gabella, M.; Perona, G.; Wickert, J. (2006): The GPS limb sounding technique for remote sensing of the atmospheric refractivity and some insight about the new Italian Space Agency GPS receiver for radio occultation. Rivista Italiana di Telerilevamento, 35, 131-145.
| EDOC: 8896 |

Wickert, J.; Gendt, G. (2006): Fernerkundung der Erdatmosphäre mit GPS. promet, 32, 3/4, 176-184.
| EDOC: 9285 |

2005

Wickert, J.; Schmidt, T. (2005): Fernerkundung der mittleren Atmosphäre mit GPS-Radiookkultation. promet, 31, 1, 50-52.
| EDOC: 7208 |

2004

Wickert, J.; Yakovlev, O. I.; Pavelyev, A. G.; Matyugov, S. S.; Anufriev, V. A. (2004): Ionospheric fluctuations of decimeter radio waves on link satellite-to-satellite. Journal Radiotekhnika i Elektronika, 49, 10, 1184-1191.
| EDOC: 6237 |

2003

Ge, S. J.; Shum, C. K.; Wickert, J.; Reigber, C. (2003): GPS radio occultation - a potential new data source for improvement of antarctic pressure field. Wuhan University Journal of Natural Sciences, 8, No. 2B, 636-648.
| EDOC: 5390 |

2001

Beyerle, G.; Wickert, J.; Galas, R.; Hocke, K.; König, R.; Marquardt, C.; Pavelyev, A. G.; Reigber, C.; Schmidt, T. (2001): GPS Occultation Measurements with GPS/MET and CHAMP. 1-6.
| EDOC: 2348 |

TOP

Book

2010

Wickert, J. (Ed.) (2010): 10 Jahre Erdbeobachtung mit CHAMP : eine Satelliten-Mission der Helmholtz-Zentren GFZ und DLR / (Ed.), Helmholtz-Zentrum Potsdam, Deutsches GeoForschungsZentrum, 3-26.
| EDOC: 16038 | 10.2312/GFZ.b103-champ001 |

Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Ed.) (2010): System Earth via Geodetic-Geophysical Space Techniques / (Ed.), Advanced Technologies in Earth Sciences, Springer.
| EDOC: 15666 | 10.1007/978-3-642-10228-8 |

Liou, Y. A.; Pavelyev, A. G.; Matyugov, S. S.; Yakovlev, O. I.; Wickert, J. (2010): Radio Occultation Method for Remote Sensing of the Atmosphere and Ionosphere , INTECH, 170.
| EDOC: 14771 |

2005

Reigber, C.; Schwintzer, P.; Lühr, H.; Wickert, J. (2005): Earth Observation with CHAMP : Results from Three Years in Orbit , Springer, 1-628.
| EDOC: 6228 |

TOP

Chapter in Book

2013

Arras, C.; Wickert, J.; Jacobi, C.; Beyerle, G.; Heise, S.; Schmidt, T. (2013): Global Sporadic E Layer Characteristics Obtained from GPS Radio Occultation Measurements. - In: Lübken, F.-J. (Eds.), Climate and weather of the sun-earth system (CAWSES) : highlights from a priority program, Springer, 207-222.
| EDOC: 19190 | 10.1007/978-94-007-4348-9_12 |

Ern, M.; Arras, C.; Faber, A.; Fröhlich, K.; Jacobi, Ch.; Kalisch, S.; Krebsbach, M.; Preusse, P.; Schmidt, T.; Wickert, J. (2013): Observations and Ray Tracing of Gravity Waves: Implications for Global Modeling. - In: Lübken, F.-J. (Eds.), Climate and weather of the sun-earth system (CAWSES) : highlights from a priority program, Springer, 383-408.
| EDOC: 19189 |

Pavelyev, A.; Pavelyev, A.; Matyugov, S.; Yakovlev, O.; Liou, Y.; Zhang, K.; Wickert, J. (2013): Radio Wave Propagation Phenomena from GPS Occultation Data Analysis. - In: Zheng, Y. (Eds.), Wave Propagation Theories and Applications, Intech.
| EDOC: 20222 | 10.5772/55480 |

2012

Zenner, L.; Gruber, T.; Beutler, G.; Jäggi, A.; Flechtner, F.; Schmidt, T.; Wickert, J.; Fagiolini, E.; Schwarz, G.; Trautmann, T. (2012): Using atmospheric uncertainties for GRACE de-aliasing - first results. - In: Kenyon, S.; Pacino, M. C.; Marti, U. (Eds.), Geodesy for Planet Earth : Proceedings of the 2009 IAG Symposium, Buenos Aires, Argentina, 31 August 31 - 4 September 2009, Springer, 147-153.
| EDOC: 17385 |

2010

Beyerle, G.; Arras, C.; Heise, S.; Schmidt, T.; Wickert, J. (2010): GPS-Radiookkultation mit dem CHAMP-Satelliten. - In: Gathen, P. v. d.; Rinke, A.; Neuber, R.; Leutert, B. (Eds.), Polare Atmosphärenforschung in Potsdam : Festschrift anlässlich des 60. Geburtstages von Klaus Dethloff mit Beiträgen von wissenschaftlichen Weggefährten, Alfred-Wegener-Institut für Polar- und Meeresforschung, Forschungsstelle Potsdam, 133-141.
| EDOC: 15038 |

Chen, J.; Bender, M.; Beyerle, G.; Dick, G.; Falck, C.; Ge, M.; Gendt, G.; Heise, S.; Ramatschi, M.; Schmidt, T.; Stosius, R.; Wickert, J. (2010): GNSS Activities for Natural Disaster Monitoring and Climate Change Detection at GFZ - an Overview. - In: Chuvieco, E.; Li, J.; Yang, X. (Eds.), Advances in Earth Observation of Global Change, Springer, 159-172.
| EDOC: 16041 | 10.1007/978-90-481-9085-0_12 |

Dobslaw, H.; Thomas, M. (2010): Numerical simulations of short-term non-tidal ocean mass anomalies. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic- Geophysical Space Techniques, Springer, 119-129.
| EDOC: 15149 | 10.1007/978-3-642-10228-8_10 |

Flechtner, F. (2010): Improved GRACE Level-1 and Level-2 Products and their Validation by Ocean Bottom Pressure. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic- Geophysical Space Techniques, Springer, 95-104.
| EDOC: 16601 | 10.1007/978-3-642-10228-8_8 |

Flechtner, F. (2010): More Accurate and Faster Available CHAMP and GRACE Gravity Fields for the User Community. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 3-13.
| EDOC: 16603 | 10.1007/978-3-642-10228-8_1 |

Flechtner, F.; Dahle, C.; Neumayer, K.-H.; König, R.; Förste, C. (2010): The Release 04 CHAMP and GRACE EIGEN Gravity Field Models. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 41-58.
| EDOC: 16006 | 10.1007/978-3-642-10228-8_4 |

Flechtner, F.; Thomas, M.; Dobslaw, H. (2010): Improved non-tidal atmospheric and oceanic de-aliasing for GRACE. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 131-142.
| EDOC: 15151 | 10.1007/978-3-642-10228-8_11 |

Güntner, A. (2010): Continental water storage variations from GRACE time-variable gravity data. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 369-375.
| EDOC: 16364 |

Heise, S.; Wickert, J.; Arras, C.; Beyerle, G.; Faber [Haser], A.; Schmidt, T.; Zus, F. (2010): Analysis and application of atmospheric data from CHAMP and GRACE. Observation of the system Earth from Space : Status Seminar 4 October 2010 Rheinische Friedrich-Wilhelms-Universität Bonn, Koordinierungsbüro GEOTECHNOLOGIEN, 46-51.
| EDOC: 16389 |

König, D.; König, R. (2010): GGOS-D Integration with Low Earth Orbiters. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 577-582.
| EDOC: 16007 | 10.1007/978-3-642-10228-8_48 |

Mandea, M.; Holschneider, M.; Lesur, V.; Lühr, H. (2010): The Earth’s Magnetic Field at the CHAMP Satellite Epoch. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic- Geophysical Space Techniques, Springer, 475-526.
| EDOC: 16666 |

Michalak, G.; König, R. (2010): Improvements for the CHAMP and GRACE Observation Model. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 29-39.
| EDOC: 16008 | 10.1007/978-3-642-10228-8_3 |

Michalak, G.; König, R. (2010): Near-Real Time Satellite Orbit Determination for GPS Radio Occultation with CHAMP and GRACE. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 443-454.
| EDOC: 16010 | 10.1007/978-3-642-10228-8_39 |

Michalak, G.; König, R. (2010): Rapid Science Orbits for CHAMP and GRACE Radio Occultation Data Analysis. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 67-77.
| EDOC: 16009 | 10.1007/978-3-642-10228-8_6 |

Petrovic, S.; Braun, R.; Barthelmes, F.; Wünsch, J.; Kusche, J.; Hengst, R. (2010): Surface mass variability from GRACE and hydrological models: Characteristic periods and the reconstruction of significant signals. - In: Flechtner, F. M.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 377-386.
| EDOC: 15913 |

Pingel, D.; Rhodin, A.; Werger, W.; Tomassini, M.; Gorbunov, M.; Wickert, J. (2010): Assimilation of CHAMP and GRACE-A Radio Occultation Data in the GME Global Meteorological Model of the German Weather Service. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 461-471.
| EDOC: 15061 |

Rudenko, S.; Thaller, D.; Gendt, G.; Dähnn, M.; Schöne, T. (2010): Reanalysis of GPS data at Tide Gauges and the Combination for the IGS TIGA Pilot Project. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 335-340.
| EDOC: 16012 | 10.1007/978-3-642-10228-8_27 |

Schmidt, T.; Wickert, J.; Michalak, G. (2010): The operational processing system for GPS radio occultation data from CHAMP and GRACE. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 455-460.
| EDOC: 15062 | 10.1007/978-3-642-10228-8 |

Schön, N.; Esselborn, S.; Schöne, T. (2010): A 15-year reconstruction of sea level anomalies using radar altimetry and GPS-corrected tide gauge data. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 359-365.
| EDOC: 18367 | 10.1007/978-3-642-10228-8_30 |

Schöne, T.; Esselborn, S.; Rudenko, S.; Raimondo, J.-C. (2010): Radar Altimetry Derived Sea Level Anomalies - The Benefit of New Orbits and Harmonization. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 317-324.
| EDOC: 16014 | 10.1007/978-3-642-10228-8_25 |

Schöne, T.; Schröter, J. (2010): Sea Level Variations - Prospects from the Past to the Present (SEAVAR). - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, 313-316.
| EDOC: 16557 | 10.1007/978-3-642-10228-8_24 |

Shako, R.; Förste, C.; Abrikosov, O.; Kusche, J. (2010): GOCE and Its Use for a High-Resolution Global Gravity Combination Model. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer-Verlag, 231-242.
| EDOC: 17086 |

Snopek, K.; König, D.; König, R. (2010): Orbit Predictions for CHAMP and GRACE. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 59-66.
| EDOC: 16013 | 10.1007/978-3-642-10228-8_5 |

Steigenberger, P.; Artz, T.; Böckmann, S.; Kelm, R.; König, R.; Meisel, B.; Müller, H.; Nothnagel, A.; Rudenko, S.; Tesmer, V.; Thaller, D. (2010): GGOS-D Consistent, High-Accuracy Technique-Specific Solutions. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 545-554.
| EDOC: 16015 | 10.1007/978-3-642-10228-8_45 |

Werth, S.; Güntner, A. (2010): Calibration of a global hydrological model with GRACE data. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 417-426.
| EDOC: 16365 |

Wickert, J. (2010): Near-real-time provision and usage of global atmospheric data from CHAMP and GRACE (NRT-RO): Motivation and Introduction. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 429-432.
| EDOC: 15059 |

Wickert, J.; Beyerle, G.; Falck, C.; Healy, S. B.; Heise, S.; Köhler, W.; Michalak, G.; Offiler, D.; Pingel, D.; Ramatschi, M.; Rothacher, M.; Schmidt, T. (2010): Global atmospheric data from CHAMP and GRACE-A: Overview and results. - In: Flechtner, F.; Gruber, T.; Güntner, A.; Mandea, M.; Rothacher, M.; Schöne, T.; Wickert, J. (Eds.), System Earth via Geodetic-Geophysical Space Techniques, Springer, 433-441.
| EDOC: 15060 |

2009

de la Torre, A.; Alexander, P.; Llamedo, P.; Schmidt, T.; Wickert, J. (2009): New Horizons in Occultation Research. - In: Steiner, A.; Pirscher, B.; Foelsche, U.; Kirchengast, G. (Eds.), New Horizons in Occultation Research : Studies in Atmosphere and Climate, Springer, 151-162.
| EDOC: 13376 |

de la Torre, A.; Alexander, P.; Llamedo, P.; Schmidt, T.; Wickert, J. (2009): Recent Advances in Gravity Wave Analysis from Long Term Global GPS Radio Occultation Observations. - In: Steiner, A.; Pirscher, B.; Foelsche, U.; Kirchengast, G. (Eds.), New Horizons in Occultation Research : Studies in Atmosphere and Climate, Springer, 151-162.
| EDOC: 13818 |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Gubenko, V. N.; Pavelyev, A. A.; Matyugov, S. S. (2009): New Applications and Advances of the GPS Radio Occultation Technology as Recovered by Analysis of the FORMOSAT-3/COSMIC and CHAMP Data-Base. - In: Steiner, A.; Pirscher, B.; Foelsche, U.; Kirchengast, G. (Eds.), New Horizons in Occultation Research : Studies in Atmosphere and Climate, Springer, 163-176.
| EDOC: 13377 |

Wickert, J.; Schmidt, T.; Michalak, G.; Heise, S.; Arras, C.; Beyerle, G.; Falck, C.; König, R.; Pingel, D.; Rothacher, M. (2009): GPS Radio Occultation with CHAMP, GRACE-A, SAC-C, TerraSAR-X, and FORMOSAT-3/COSMIC: Brief Review of Results from GFZ. - In: Steiner, A.; Pirscher, B.; Foelsche, U.; Kirchengast, G. (Eds.), New Horizons in Occultation Research : Studies in Atmosphere and Climate, Springer, 3-16.
| EDOC: 13375 |

2008

Jacobi, C.; Arras, C.; Wickert, J. (2008): Semidiurnal signature over Collm (51,3°N; 13°E) in sporadic E layer frequency obtained from FORMOSAT-3 / COSMIC GPS radio occultation measurements. - In: Raabe, A. (Eds.), Meteorologische Arbeiten ... und Jahresbericht 2007 des Instituts für Meteorologie der Universität Leipzig, 129-140.
| EDOC: 11955 |

2007

Michalak, G.; Wickert, J.; König, R.; Rothacher, M. (2007): Near-real time satellite orbit determination for GPS radio occultation. Observation of the System Earth from Space: Status Seminar, 22.-23. November 2007, Bavarian Academy of Sciencesand Humanities, Munich, Programme & Abstracts, Koordinierungsbüro GEOTECHNOLOGIEN, 23-25.
| EDOC: 11017 |

Pingel, D.; Rhodin, A.; Wergen, W.; Tomassini, M.; Gorbunov, M.; Wickert, J. (2007): Assimilation of CHAMP and GRACE-A Radio Occultation data in the GME Global Atmospheric Model of the German Weather Service. - In: Stroink, L. (Eds.), Observations of the System Earth from Space : status seminar, 22 - 23 November 2007, Bavarian Academy of Sciences and Humanities, Munich; Programme & Abstracts, Koordinierungsbüro Geotechnologien, 26-35.
| EDOC: 11041 |

Wickert, J.; Beyerle, G.; Falck, C.; Flechtner, F.; Galas, R.; Grunwaldt, L.; Healy, S. B.; Heise, S.; Köhler, W.; König, R.; Massmann, F.-H.; Michalak, G.; Offiler, D.; Pingel, D.; Poli, P.; Ozawa, E.; Rothacher, M.; Schmidt, T.; Tapley, B.; Wergen, W. (2007): Global atmospheric data from CHAMP and GRACE in near-real time. Observations of the System Earth from Space : status seminar, 22 - 23 November 2007, Bavarian Academy of Sciences and Humanities, Munich; Programme & Abstracts, Koordinierungsbüro GEOTECHNOLOGIEN, 36-40.
| EDOC: 11024 |

Wickert, J.; Gendt, G.; Beyerle, G.; Heise, S.; Helm, A.; Reigber, C.; Schmidt, T.; Jakowski, N.; Jacobi, C. (2007): Ground and Space Based GPS Atmospheric Sounding: Brief Overview and Examples. - In: Anandan, V. K.; Roettger, J.; Rao, D. N. (Eds.), Proceedings of the INTAR colloquium -International Network of Atmosphere Radar-, National Atmospheric Research Laboratory, Gadanki, 1-10.
| EDOC: 11026 |

Wickert, J.; Jakowski, N. (2007): GNSS based sounding of the Atmosphere/Ionosphere. - In: Müller, J.; Hornik, H. (Eds.), National Report of the Federal Republic of Germany on the Geodetic activities in the years 2003-2007 : XXIV General Assembly of the International Union for Geodesy and Geophysics (IUGG) 2007 in Perugia /Italy, Beck, 125-129.
| EDOC: 10536 |

2006

Beyerle, G.; Heise, S.; Kaschenz, J.; König-Langlo, G.; Reigber, C.; Schmidt, T.; Wickert, J. (2006): Refractivity biases in GNSS occultation data. - In: Fölsche, U.; Kirchengast, G.; Steiner, A. (Eds.), Atmosphere and climate : studies by occultation methods, Springer, 37-43.
| EDOC: 6367 | PDF |

Bizzarri, B.; Bordi, I.; Dell'Aquila, A.; Petitta, M.; Schmidt, T.; Sutera, A.; Wickert, J. (2006): Analysis of seasonal and daily mid-latitude tropopause pressure using GPS radio occultation data and NCEP-NCAR reanalysis. - In: Foelsche, U.; Kirchengast, G.; Steiner, A. (Eds.), Atmosphere and climate : studies by occultation methods, Springer, 253-263.
| EDOC: 9216 |

Borsche, M.; Gobiet, A.; Steiner, A. K.; Foelsche, U.; Kirchengast, G.; Schmidt, T.; Wickert, J. (2006): Pre-operational retrieval of radio occultation based climatologies. - In: Foelsche, U.; Kirchengast, G.; Steiner, A. (Eds.), Atmosphere and climate : studies by occultation methods, Springer, 315-323.
| EDOC: 9218 |

Flechtner, F.; Schmidt, R.; Rothacher, M.; Wickert, J.; Lühr, H. (2006): CHAMP und GRACE – erfolgreiche Schwerefeld- und Klimamissionen. Zweijahresbericht 2004/2005, GeoForschungszentrum Potsdam, 53-62.
| EDOC: 8949 | PDF |

Foelsche, U.; Gobiet, A.; Steiner, A. K.; Borsche, M.; Wickert, J.; Schmidt, T.; Kirchengast, G. (2006): Global Climatologies Based on Radio Occultation Data: The CHAMPCLIM Project. - In: Foelsche, U.; Kirchengast, G.; Steiner, A. (Eds.), Atmosphere and climate : studies by occultation methods, Springer, 303-314.
| EDOC: 6349 | Abstract |

Pavelyev, A. G.; Wickert, J.; Liou, Y. A.; Pavelyev, A. A.; Jacobi, C. (2006): Analysis of atmospheric and ionospheric wave structures using the CHAMP and GPS/MET radio occultation database. - In: Foelsche, U.; Kirchengast, G.; Steiner, A. (Eds.), Atmosphere and climate : studies by occultation methods, Springer, 225-241.
| EDOC: 9215 |

von Engeln, A.; Teixeira, J.; Wickert, J.; Buehler, S. A. (2006): CHAMP radio occultation detection of the planetary boundary layer top. - In: Foelsche, U.; Kirchengast, G.; Steiner, A. (Eds.), Atmosphere and climate : studies by occultation methods, Springer, 265-272.
| EDOC: 9217 |

Wickert, J.; Beyerle, G.; Schmidt, T.; Healy, S. B.; Heise, S.; Michalak, G.; Rothacher, M. (2006): GPS based atmospheric sounding with CHAMP: Results achieved after four years. Proceedings / The 2005 EUMETSAT Meteorological Satellite Conference : Dubrovnik, Croatia, 19 - 23 September 2005, Eumetsat, 39-47.
| EDOC: 8903 |

Wickert, J.; Schmidt, T.; Beyerle, G.; Heise, S.; Reigber, C. (2006): Global Atmospheric Sounding with GPS Radio Occultation aboard CHAMP. - In: Flury, J.; Rummel, R.; Reigber, C.; Rothacher, M.; Boedecker, G.; Schreiber, U. (Eds.), Observation of the Earth System from Space, Springer, 55-70.
| EDOC: 8369 |

Wickert, J.; Schmidt, T.; Beyerle, G.; Michalak, G.; König, R.; Reigber, C.; Heise, S. (2006): GPS radio occultation with CHAMP and GRACE: Recent results. - In: Foelsche, U.; Kirchengast, G.; Steiner, A. (Eds.), Atmosphere and climate : studies by occultation methods, Springer, 3-16.
| EDOC: 6292 | Abstract |

2005

Ballani, L.; Wardinski, I.; Stromeyer, D.; Greiner-Mai, H. (2005): Time structure of the 1991 magnetic jerk in the core-mantle boundary zone by inverting global magnetic data supported by satellite measurements. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 311-316.
| EDOC: 5717 |

Beyerle, G.; Wickert, J.; Schmidt, T.; König, R.; Reigber, C. (2005): An analysis of the lower tropospheric refractivity bias by heuristic sliding spectral methods. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth observation with CHAMP : Results from Three Years in Orbit, Springer, 507-512.
| EDOC: 5732 |

Fleming, K.; Martinec, Z.; Hagedoorn, J.; Wolf, D. (2005): Contemporary changes in the geoid about Greenland: predictions relevant to gravity space missions. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 217-222.
| EDOC: 5718 |

Foelsche, U.; Kirchengast, G.; Gobiet, A.; Steiner, A. K.; Löscher, A.; Wickert, J.; Schmidt, T. (2005): The CHAMPCLIM project : An overview. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 615-620.
| EDOC: 6205 |

Förste, C.; Choi, S. (2005): CHAMP Accelerometer Preprocessing at GeoForschungsZentrum Potsdam. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 169-174.
| EDOC: 10334 |

Förster, M.; Rother, M.; Lühr, H. (2005): Ionospheric plasma effects for geomagnetic LEO missions at mid- and low-latitudes. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : results from three years in orbit, Springer, 239-248.
| EDOC: 11021 |

Gobiet, A.; Kirchengast, G.; Wickert, J.; Retscher, C.; Wang, D.-Y.; Hauchecorne, A. (2005): Evaluation of Stratospheric Radio Occultation Retrieval Using Data from CHAMP, MIPAS, GOMOS, and ECMWF Analysis Fields. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 531-536.
| EDOC: 6207 |

Heise, S.; Jakowski, N.; Cooke, D. (2005): Ionosphere/Plasmasphere imaging based on GPS navigation measurements from CHAMP and SAC-C. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 471-476.
| EDOC: 7190 |

Heise, S.; Stolle, C.; Schlüter, S.; Jakowski, N. (2005): Differential Code Bias of GPS Receivers in Low Earth Orbit: An Assessment for CHAMP and SAC-C. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 465-470.
| EDOC: 7191 |

Helm, A.; Beyerle, G.; Heise, S.; Schmidt, T.; Wickert, J. (2005): The continuous Wavelet Transform, a valuable analysis tool to detect atmospheric and ionospheric signatures in radiooccultation path delay data. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP - Results from Three Years in Orbit, Springer, 591-596.
| EDOC: 5761 |

Kaban, M. K.; Schwintzer, P.; Reigber, C. (2005): Dynamic topography as reflected in the global gravity field.. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth observation with CHAMP : Results from Three Years in Orbit, Springer, 199-204.
| EDOC: 7159 |

König, R.; Michalak, G.; Neumayer, K.-H.; Schmidt, R.; Zhu, S.Y.; Meixner, H.; Reigber, C. (2005): Recent Developments in CHAMP orbit determination at GFZ. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth observation with CHAMP : Results from Three Years in Orbit, Springer, 65-70.
| EDOC: 5729 |

König, R.; Michalak, G.; Reigber, C.; Grunwaldt, L. (2005): CHAMP Clock Characterization Revisited. - In: Reigber, C.; Luehr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth observation with CHAMP : results from three years in, Springer, 175-180.
| EDOC: 10487 |

Liou, Y. A.; Wickert, J.; Pavelyev, A.; Reigber, C.; Schmidt, T.; Huang, C. Y.; Yan, S. (2005): Gravity wave 'portrait' reconstructed by radio holographic analysis of the amplitude of GPS radio occultation signals. - In: Reigber, Ch.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth observation with CHAMP : Results from three years in orbit, Springer, 549-554.
| EDOC: 9098 |

McCreadie, H.; Martinec, Z. (2005): Geomagnetic induction modeling based on CHAMP magnetic vector data. - In: Reigber, Ch.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 335-340.
| EDOC: 5719 |

Neumayer, K.-H.; Michalak, G.; König, R. (2005): On calibrating the CHAMP on-board accelerometer and attitude quaternion processing. - In: Reigber, Ch.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth observation with CHAMP : Results from Three Years in Orbit, Springer, 71-76.
| EDOC: 5730 |

Pavelyev, A. G.; Wickert, J.; Reigber, C.; Schmidt, T.; Liou, Y. A.; Huang, C. Y.; Matyugov, S. S.; Pavelyev, D. A. (2005): Amplitude variations of CHAMP radio occultation data as an indicator of the ionospheric activity. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 431-440.
| EDOC: 6209 |

Pavelyev, A.; Wickert, J.; Liou, Y. A. (2005): Diffractice integrals for bistatic remote sensing using GPS signals. - In: Reigber, Ch.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth observation with CHAMP : Results from three years in orbit, Springer, 513-518.
| EDOC: 9099 |

Pavelyev, A.; Wickert, J.; Liou, Y. A.; Pavelyev, A. A.; Schmidt, T.; Matyugov, S. S. (2005): Results of radio holografic analysis of GPS occultation signals registered during CHAMP and PS/MET small satellites missions. - In: Röser, H.-P.; Sandau, R.; Valenzuela, A. (Eds.), Small satellites for Earth Observation, Wissenschaft und Technik Verl., 35-39.
| EDOC: 7207 |

Reigber, C.; Jochmann, H.; Wünsch, J.; Petrovic, S.; Schwintzer, P.; Barthelmes, F.; Neumayer, K.-H.; König, R.; Förste, C.; Balmino, G.; Biancale, R.; Lemoine, J.-M.; Loyer, S.; Perosanz, F. (2005): Earth gravity field and seasonal variability from CHAMP. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP: Results from Three Years in Orbit, Springer-Verlag, 25-30.
| EDOC: 5911 |

Schmidt, T.; Wickert, J.; Beyerle, G.; König, R.; Galas, R.; Reigber, C. (2005): The CHAMP atmospheric processing system for radio occultation measurements. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth observation with CHAMP : Results from Three Years in Orbit, Springer, 597-602.
| EDOC: 5733 |

Schmidt, T.; Wickert, J.; Beyerle, G.; Reigber, C. (2005): Tropical Tropopause Characteristics from CHAMP. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 561-566.
| EDOC: 6211 |

Stolle, C.; Schlüter, S.; Jacobi, C.; Jakowski, N.; Heise, S.; Raabe, A. (2005): Three-Dimensional Monitoring of the Polar Ionosphere with Ground- and Space-Based GPS. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Spinger, 477-482.
| EDOC: 7192 |

Torre de la, A.; Tsuda, T.; Tsai, H. F.; Hajj, G. A.; Wickert, J. (2005): Aanalysis of gravity wave variablity from SAC-C and CHAMP occultation profiles between June 2001 and March 2003. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 609-614.
| EDOC: 6212 |

Vespe, F.; Wickert, J.; Benedetto, C.; Pacione, R. (2005): Derivation of the Water Vapor Content from the GNSS Radio Occultation Observations. - In: Reigber, Ch.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 537-542.
| EDOC: 6213 |

Wang, D. Y.; Wickert, J.; Stiller, G.; Clarmann, T. von; Beyerle, G.; Schmidt, T.; Puertas, M. L.; Funke, B.; Gil-Lopez, S.; Glatthor, N.; Grabowski, U.; Höpfner, M.; Kellermann, S.; Kiefer, M.; Linden, A.; Tsidu, G. M.; Milz, M.; Steck, T.; Fischer, H.; Reigber, C. (2005): Comparisons of MIPAS/ENVISAT and GPS-RO/CHAMP temperature profiles. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 567-572.
| EDOC: 6214 |

Wardinski, I.; Holme, R. (2005): New insight into secular variation between MAGSAT and CHAMP/ØRSTED. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 305-311.
| EDOC: 11473 |

Wickert, J.; Gobiet, A.; Beyerle, G.; Steiner, A. K.; Kirchengast, G.; Foelsche, U.; Schmidt, T. (2005): GPS radio occultation with CHAMP: Comparison of inversion results from GFZ Potsdam and IGAM Graz. - In: Reigber, Ch.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth Observation with CHAMP : Results from Three Years in Orbit, Springer, 525-530.
| EDOC: 6201 |

Wickert, J.; Schmidt, T.; Beyerle, G.; Michalak, G.; König, R.; Kaschenz, J.; Reigber, C. (2005): Atmospheric profiling with CHAMP: Status of the operational data analysis, validation of the recent data products and future prospects. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth observation with CHAMP : Results from Three Years in Orbit, Springer, 495-500.
| EDOC: 5731 |

2004

Neumeyer, J.; Schwintzer, P.; Barthelmes, F.; Dierks, O.; Imanishi, Y.; Kroner, C.; Meurers, B.; Sun, H.-P.; Virtanen, H. (2004): Comparison of Superconducting Gravimeter and CHAMP Satellite derived Temporal Gravity Variations. - In: Reigber, C.; Lühr, H.; Schwintzer, P.; Wickert, J. (Eds.), Earth observation with CHAMP : results from thre years in orbit, Springer, 31-36.
| EDOC: 8311 |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Huang, C. Y.; Igarashi, K.; Hocke, K. (2004): The Radio-holographic Approach for GNSS Occultation Data Analysis: Review and Application to Resolving Fine Structures in the Atmosphere and Mesosphere. - In: Kirchengast, G.; Foelsche, U.; Steiner, A. K: (Eds.), Occultations for probing atmosphere and climate, Springer, 25-39.
| EDOC: 6216 |

2003

Marquardt, C.; Schöllhamer, K.; Beyerle, G.; Schmidt, T.; Wickert, J.; Reigber, C. (2003): Validation and data quality of CHAMP radio occultation data.. - In: Reigber, C.; Lühr, H.; Schwintzer, P. (Eds.), First CHAMP mission results for gravity, magnetic and atmospheric studies, Springer, 384-396.
| EDOC: 3851 |

Pavelyev, A. G.; Wickert, J.; Liou, Y. A.; Igarashi, K.; Hocke, K.; Huang, C.-Y. (2003): Vertical Gradients of Refractivity in the Mesosphere and Atmosphere retrieved from GPS/MET and CHAMP Radio Occultation Data. - In: Reigber, Ch.; Lühr, H.; Schwintzer, P. (Eds.), First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies, Springer-Verlag, 500-507.
| EDOC: 3438 |

Pavelyev, D. A.; Wickert, J.; Pavelyev, A. G.; Kucherjavenkov, I.; Matyugov, S. S.; Hocke, K.; Beyerle, G.; Yakovlev, O. I.; Kucherjavenkov, A. (2003): Observation of reflected Signals in MIR/GEO and GPS/MET Radio Occultation Missions. - In: Reigber, Ch.; Lühr, H.; Schwintzer, P. (Eds.), First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies, Springer-Verlag, 508-514.
| EDOC: 3439 |

Wickert, J. (2003): Atmosphere sounding using GPS radio occultation. National report of the Federal Republic of Germany on the geodetic activities in the years 1999-2003, Beck, 53-56.
| EDOC: 3859 |

Wickert, J.; Beyerle, G.; Schmidt, T.; König, R.; Reigber, C.; Marquardt, C. (2003): Highlights of CHAMP atmospheric occultation results. OIST-4 proceedings : 4th OERSTED International Science Team Conference, Copenhagen, 23-27 September 2002, Danish Meteorological Institute, 235-240.
| EDOC: 6219 |

Wickert, J.; Beyerle, G.; Schmidt, T.; Marquardt, C.; König, R.; Grunwaldt, L.; Reigber, C. (2003): GPS Radio Occultation with CHAMP. - In: Reigber, C.; Lühr, H.; Schwintzer, P. (Eds.), First CHAMP Mission Results for Gravity, Magnetic and Atmospheric Studies, Springer-Verlag, 371-383.
| EDOC: 3434 |

2002

Beyerle, G.; Reigber, C.; Galas, R.; Grunwaldt, L.; König, R.; Marquardt, C.; Meehan, T. K.; Schmidt, T.; Wickert, J.; Yunck, T. P. (2002): Radio occultation results and lessons learnt from the CHAMP mission. Proceedings / The 2002 EUMETSAT Meteorological Satellite Conference : Dublin, Ireland, 02 - 06 September 2002, Eumetsat, 107-114.
| EDOC: 6290 | Abstract |

Wickert, J.; Reigber, C.; Beyerle, G.; König, R.; Marquardt, C.; Schmidt, T.; Meehan, T.; Grunwaldt, L.; Galas, R. (2002): GPS radio occultation with CHAMP : Initial results. Proceedings of the International Beacon Satellite Symposium : Boston, 3 - 6 June, 2001 (available on CD), 59-62.
| EDOC: 3320 |

Wickert, J.; Schmidt, T.; Marquardt, C.; Reigber, C.; Neumayer, K.-H.; Beyerle, G.; Galas, R.; Grunwaldt, L. (2002): GPS radio occultation with CHAMP : First results and status of the experiment. - In: Ádám, J. (Eds.), Vistas for geodesy in the new millennium : IAG 2001 scientific assembly, Budapest, Hungary, September 2-7, 2001, 273-278.
| EDOC: 3321 |

2000

Reigber, C.; Galas, R.; König, R.; Jakowski, N.; Wickert, J.; Wehrenpfennig, A. (2000): GFZ and DLR contribution to a GPS ground network to support the CHAMP mission. - In: Rummel, R.; Drewes, H.; Bosch, W.; Hornik, H. (Eds.), Towards an integrated global geodetic observing system (IGGOS) : IAG Section II symposium, Munich, Germany, 5 - 9 October 1998, Springer, 222-224.
| EDOC: 6226 |

1999

Pavelyev, A. G.; Hocke, K.; Jakowski, N.; Wickert, J.; Matyugov, S. S.; Kucherjavenkov, A.; Wehrenpfennig, A.; Zakharov, A. (1999): Radioholographic method for atmosphere sounding using small satellite, Small Satellites for Earth Observation. - In: Röser, H. P. (Eds.), Small satellites for earth observation : digest of the 2nd international symposium of the International Academy of Astronautics, Berlin, April 12 - 16, 1999, Wissenschaft und Technik Verlag Berlin, 199-202.
| EDOC: 2336 |

1998

Reigber, C.; Galas, R.; König, R.; Jakowski, N.; Wickert, J.; Wehrenpfennig, A. (1998): GFZ and DLR Contribution to a PGS Ground Network to Support the CHAMP Mission. - In: Rummel, R.; Drewes, H.; Bosch, W. (Eds.), Towards an integrated global geodetic observing system (IGGOS) : IAG Section II symposium, Munich, October 5-9, 1998, Springer, 222-224.
| EDOC: 2644 |

TOP

Conference Paper

2012

Beckheinrich, J.; Semmling, M.; Beyerle, G.; Wickert, J.; Apel, H. (2012): GNSS-Reflectometry from ground-based, airborne and satellite platforms: Observations and simulation studies. Electronic Proceedings / EUSAR 2012, 9th European Conference on Synthetic Aperture Radar - EuSAR 2012 (Nürnberg, Germany 2012), 641-644.
| EDOC: 19192 |

Beckheinrich, J.; Semmling, M.; Beyerle, G.; Wickert, J.; Apel, H. (2012): WISDOM: GNSS-R based flood monitoring - Preliminary results. General Assembly European Geosciences Union (Vienna, Austria 2012).
| EDOC: 18846 |

Beckheinrich, J.; Semmling, M.; Beyerle, G.; Wickert, J.; Apel, H.; Stosius, R. (2012): GNSS-Reflectometry from ground-based, airborne and satellite platforms: Observations and simulation studies. EUSAR 2012 – 9th European Conference on Synthetic Aperture Radar (Nürnberg 2012).
| EDOC: 18621 | Abstract |

de la Torre, A.; Alexander, P.; Hierro, R.; Llamedo, P.; Rolla, A.; Schmidt, T.; Wickert, J. (2012): Vertical flux of horizontal momentum transported by large amplitude GWs above Southern Andes, the Drake Passage and the Antarctic Peninsula. 39th COSPAR Scientific Assembly (Mysore, India 2012).
| EDOC: 19194 |

de la Torre, A.; Alexander, P.; Llamedo, P.; Hierro, R.; Schmidt, T.; Wickert, J. (2012): Estimated vertical flux of horizontal momentum due to mountain waves from GPS radio occultation data above southern Andes and the Antarctic Peninsula. 7th IAGA/ICMA/CAWSES Workshop on Long-Term Changes and Trends in the Atmosphere (Buenos Aires, Argentina 2012).
| EDOC: 19204 |

Deng, Z.; Bender, M.; Zus, F.; Ge, M.; Dick, G.; Wickert, J.; Schön, S. (2012): GPS Meteorology with single frequency receivers. IGS Workshop 2012 (Olsztyn, Poland 2012).
| EDOC: 19196 |

Fabra, A.; Llamedo, P.; Schmidt, T.; de la Torre, A.; Wickert, J. (2012): Global Momentum Flux Determination from GPS Radio Occultation Data. 7th IAGA/ICMA/CAWSES Workshop on Long-Term Changes and Trends in the Atmosphere (Buenos Aires, Argentina 2012).
| EDOC: 19815 |

Heise, S.; Beyerle, G.; Grunwaldt, G.; Michalak, G.; Schmidt, T.; Wickert, J.; Zus, F. (2012): Processing and application of GPS radio occultation data from TerraSAR-X and TanDEM-X. General Assembly European Geosciences Union (Vienna, Austria 2012).
| EDOC: 18844 |

Heise, S.; Wickert, J.; Arras, C.; Beyerle, G.; Bender, M.; Chen, J.; Deng, Z.; Dick, G.; Falck, C.; Ge, M.; Gendt, G.; Faber, A.; Ramatschi, M.; Schmidt, T.; Semmling, M.; Stosius, R. (2012): GPS-basierte Atmosphärenfernerkundung am GFZ: Beobachtungsverfahren und Anwendungen. SORACAL-Meeting (Potsdam, Germany 2012).
| EDOC: 19830 |

Heise, S.; Wickert, J.; Arras, C.; Beyerle, G.; Faber, A.; Michalak, G.; Schmidt, T.; Zus, F. (2012): Reprocessing and application of GPS radio occultation data from CHAMP and GRACE. Statusseminar Geotechnologien 'Weltraum Phase III' (Potsdam 2012).
| EDOC: 19831 |

Li, X.; Ge, M.; Klose, S.; Nischan, T.; Wickert, J. (2012): Generating UPD for IGS combined products for ambiguity-fixing of real-time precise point positioning. IGS Workshop 2012 (Olsztyn, Poland 2012).
| EDOC: 19195 |

Llamedo, P.; Schmidt, T.; de la Torre, A.; Faber, A.; Hierro, R.; Alexander, P.; Wickert, J. (2012): Long term study of gravity waves properties using the Radio Occultation techniques. 7th IAGA/ICMA/CAWSES Workshop on Long-Term Changes and Trends in the Atmosphere (Buenos Aires, Argentina 2012).
| EDOC: 19205 |

Pavelyev, A. G.; Gubenko, V.; Liou, Y.-A.; Zhang, K.; Pavelyev, A. A.; Wickert, J.; Kuleshov, Y. (2012): Radio occultation criterion and detection of internal gravity waves. General Assembly European Geosciences Union (Vienna, Austria 2012).
| EDOC: 18847 |

Pavelyev, A. G.; Zhang, K.; Liou, Y.; Wang, C.; Wickert, J.; Schmidt, T.; Pavelyev, A. A.; Kuleshov, Y. (2012): Experimental and theoretical analysis of the ionospheric impact on the amplitude and phase oscillations of GPS signals in the satellite-to-satellite and satellite-to ground communication links. General Assembly European Geosciences Union (Vienna, Austria 2012).
| EDOC: 18845 |

Schmidt, T.; Faber, A.; de la Torre, A.; Llamedo, P.; Alexander, P.; Heise, S.; Wickert, J. (2012): The effect of different background separation methods on gravity wave parameters in the upper troposphere and lower stratosphere region derived from GPS radio occultation data. 39th COSPAR Scientific Assembly (Mysore, India 2012).
| EDOC: 19193 |

Schmidt, T.; Heise, S.; Michalak, G.; Beyerle, G.; Zus, F.; Wickert, J.; Faber, A.; de la Torre, A.; Alexander, P. (2012): Upper tropospheric and lower stratospheric variability observed with GPS radio occultation data since 2001: Results from CHAMP, GRACE, TerraSAR-X, and FORMOSAT-3/COSMIC. International Radio Occultation Working Group (IROWG) 2nd Workshop (Boulder 2012).
| EDOC: 19829 |

Schmidt, T.; Llamedo, P.; de la Torre, A.; Heise, S.; Zus, F.; Beyerle, G.; Faber, A.; Wickert, J. (2012): Variability of the upper troposphere and lower stratosphere observed with GPS radio occultation temperatures. 7th IAGA/ICMA/CAWSES Workshop on Long-Term Changes and Trends in the Atmosphere (Buenos Aires, Argentina 2012).
| EDOC: 19833 |

Shangguan, M.; Bender, M.; Wickert, J.; Dick, G.; Raabe, A.; Galas, R. (2012): GPS Tomography: Validation of Reconstructed 3D Humidity Fields with Radiosonde Data. General Assembly European Geosciences Union (Vienna, Austria 2012).
| EDOC: 18843 |

Wickert, J. (2012): GPS/Galileo Earth Observation at GFZ: Recent activities and results. 3rd China Satellite Navigation Conference - CSNC (Guangzhou, China 2012).
| EDOC: 18848 |

Wickert, J.; Arras, C.; Bartsch, M.; Beyerle, G.; Bender, M.; Deng, Z.; Dick, G.; Falck, C.; Ge, M.; Gendt, G.; Heise, S.; Michalak, G.; Ramatschi, M.; Schmidt, T.; Semmling, M. (2012): GPS/Galileo Earth Observation at GFZ: Recent activities and results. International Symposium and Summer School on Space Geodesy and Earth System (SGES2012) (Shanghai, China 2012).
| EDOC: 19199 |

Wickert, J.; Beyerle, G.; Falck, C.; Grunwaldt, L.; Heise, S.; Ramatschi, M.; Stege, S.; Schmidt, T.; Semmling, M.; Zus, F. (2012): GNSS radio occultation at GFZ: Recent results and activities related to future missions. Sixth FORMOSAT-3/COSMIC Data Users' Workshop (Boulder, Colorado 2012).
| EDOC: 19811 |

Wickert, J.; Jakowski, N. (2012): Space Geodesy for global atmospheric sounding: GNSS radio occultation. AOGS - AGU (WPGM) Joint Assembly (Singapur 2012).
| EDOC: 19198 |

Wickert, J.; Rannat, K.; Wang, J.; Braun, J.; Dick, G.; Elgered, G.; Gutman, S.; Jones, J.; Liu, Z..; Shoji, Y. (2012): GRUAN GNSS Precipitable Water Task Team. IGS Workshop 2012 (Olsztyn, Poland 2012).
| EDOC: 19197 |

Wickert, J.; Yunck, T. (2012): GNSS atmospheric sounding. International Symposium and Summer School on Space Geodesy and Earth System (SGES2012) (Shanghai, China 2012).
| EDOC: 19200 |

Zus, F.; Beyerle, G.; Grunwaldt, L.; Heise, S.; Michalak, G.; Schmidt, T.; Wickert, J. (2012): Processing of GPS radio occultation data from TerraSAR-X and TanDEM-X. Sixth FORMOSAT-3/COSMIC Data Users' Workshop (Boulder, Colorado 2012).
| EDOC: 19805 |

2011

Alberding, J.; Wickert, J. (2011): Online GNSS service with scalable positioning accuracy. NEREUS - International Conference 'Data Flow from Space to Earth: Applications and Interoperability' (Venice 2011).
| EDOC: 16974 |

Arras, C.; Jacobi, C.; Wickert, J.; Heise, S.; Schmidt, T. (2011): Global observation and analysis of sporadic E layers detected using GPS radio occultation measurements from CHAMP, GRACE and FORMOSAT-3/COSMIC. 5th FORMOSAT-3 / COSMIC Data User Workshop (Taipei, Taiwan 2011).
| EDOC: 17350 |

Arras, C.; Pancheva, D.; Jacobi, C.; Wickert, J. Wickert (2011): Characteristics of sporadic E layers derived from global GPS radio occultation measurements. The 4th IAGA/ICMA/CAWSES-II TG4 Workshop on Vertical Coupling in the Atmosphere-Ionosphere System (Prague 2011).
| EDOC: 16971 |

Awange, J. L.; Khandu, J.; Wickert, J.; Schmidt, T.; Sharifi, M. A.; Heck, B. (2011): GNSS remote sensing of the Australian tropopause. 25th IUGG General Assembly (Melbourne 2011).
| EDOC: 17379 |

Bender, M.; Dick, G.; Shangguan, M.; Ramatschi, M.; Wickert, J.; Raabe, A. (2011): GPS Tomography: Validation of the Reconstructed Humidity Fields. General Assembly European Geosciences Union (Vienna, Austria 2011).
| EDOC: 17363 |

Bender, M.; Li, X.; Dick, G.; Zus, F.; Ramatschi, M.; Dousa, J.; Chen, J.; Ge, M.; Wickert, J. (2011): GPS-derived Atmospheric Water Vapour at GFZ: from Near Real-Time to Real-Time Processing. General Assembly European Geosciences Union (Vienna, Austria 2011).
| EDOC: 17369 |

Beyerle, G.; Semmling, M.; Grunwaldt, L.; Wickert, J.; Flechtner, F. (2011): A Coherent Ocean Reflection Experiment for GRACE F-O. GRACE Science Team Meeting (Austin, Texas 2011).
| EDOC: 17345 |

Cui, H.; Ge, M.; Han, C.; Wickert, J. (2011): Improving Real-Time GNSS Satellite Orbit Determination with Data from Low Earth Orbiting Satellites. General Assembly European Geosciences Union (Vienna, Austria 2011).
| EDOC: 17366 |

Deng, Z.; Bender, M.; Dick, G.; Ge, M.; Wickert, J. (2011): GPS Tomography with single frequency receivers. CSNC 2011: China Satellite Navigation Conference (Shanghai, China 2011).
| EDOC: 17373 |

Faber [Haser], A.; Schmidt, T.; de la Torre, A.; Wickert, J.; Fischer, J. (2011): Detailed Analysis of Horizontal Wave Parameters using Radio Occultation Data. AGU Chapman Conference on Atmospheric Gravity Waves and Their Effects on General Circulation and Climate (Honolulu, Hawaii 2011).
| EDOC: 16970 |

Flechtner, F.; Wickert, J.; Bettadpur, S.; Tapley, B.; Watkins, M. (2011): GRACE: A highly successful satellite mission supporting the goals of WEGENER project. General Assembly European Geosciences Union (Vienna, Austria 2011).
| EDOC: 17370 |

Ge, M.; Chen, J.; Dousa, J.; Li, X.; Gendt, G.; Wickert, J. (2011): Development of the GFZ Real-Time Precise Point Positioning Service. General Assembly European Geosciences Union (Vienna, Austria 2011).
| EDOC: 17362 |

Ge, M.; Li, X.; Chen, J.; Dousa, J.; Wickert, J. (2011): Global Precise Point Positioning with Regional Augmentation for Instantaneous Ambiguity Resolution. Kolloquium Satellitennavigation (München 2011).
| EDOC: 16432 |

Ge, M.; Li, X.; Dousa, J.; Cui, H.; Gendt, G.; Wickert, J. (2011): Global Precise Point Positioning with Regional Augmentation. CSNC 2011: China Satellite Navigation Conference (Shanghai, China 2011).
| EDOC: 17372 |

Heise, S.; Beyerle, G.; Michalak, G.; Schmidt, T.; Wickert, J.; Zus, F. (2011): GPS radio occultation at GFZ: Status and recent results from TerraSAR-X and TanDEM-X. General Assembly European Geosciences Union (Vienna, Austria 2011).
| EDOC: 17361 |

Heise, S.; Wickert, J.; Arras, C.; Beyerle, G.; Faber, A.; Michalak, G.; Schmidt, T.; Zus, F. (2011): Applications of atmospheric data from GPS Radio Occultation. BMBF Geotechnologien Statusseminar 2011'Erfassung des Systems Erde aus dem Weltraum III'(Stuttgart 2011).
| EDOC: 19828 |

Heise, S.; Wickert, J.; Arras, C.; Beyerle, G.; Faber, A.; Michalak, G.; Schmidt, T.; Zus, F. (2011): Reprocessing and application of GPS radio occultation data from CHAMP and GRACE. BMBF Geotechnologien Statusseminar 2011 'Erfassung des Systems Erde aus dem Weltraum III' (Stuttgart 2011).
| EDOC: 19827 |

Li, X.; Ge, M.; Wickert, J. (2011): Regional network augmented real-time precise point positioning for instantaneous ambiguity resolution. General Assembly European Geosciences Union (Vienna, Austria 2011).
| EDOC: 17368 |

Llamedo, P.; de la Torre, A.; Alexander, P.; Hierro, R.; Schmidt, T.; Faber [Haser], A.; Wickert, J. (2011): Long-term global GW activity in lower and middle atmosphere from CHAMP, GRACE and COSMIC radio occultation data between 2001 and 2010. AGU Chapman Conference on Atmospheric Gravity Waves and Their Effects on General Circulation and Climate (Honolulu, Hawaii 2011).
| EDOC: 16969 |

Pavelyev, A. G.; Wickert, J.; Schmidt, T.; Liou, Y. A.; Zhang, K.; Kuleshov, Y. (2011): Analytical model of electromagnetic waves propagation and location of inclined plasma layers using GNSS occultation data. 12th URSI Commission F Triennial Open Symposium on Radio Wave Propagation and Remote Sensing (Garmisch-Partenkirchen, Germany 2011).
| EDOC: 16975 |

Santos, M.; Wickert, J. (2011): Report from Sub-Commission 4.3: Remote Sensing and Modelling of the Atmosphere. 25th IUGG General Assembly (Melbourne 2011).
| EDOC: 17380 |

Scheinert, M.; Schwabe, J.; Eberlein, L.; Dietrich, R.; Barthelmes, F.; Förste, C.; Petrovic, S.; Pflug, H.; Lesur, V.; Gebler, A.; Geiger, A.; Wickert, J.; Beyerle, G.; Semmling, M.; Gerber, T.; Ribó, S.; Rius, A.; Cardellach, E.; Heyde, I.; Meyer, U.; Blindow, N.; Jenett, M.; Markgraf, M.; Rivas, R.; Grillenberger, A. (2011): The Application of the New German 'High Altitude and Long Range Research Aircraft' (HALO) for Airborne Geodesy and Geophysics. 11th International Symposium on Antarctic Earth Sciences (ISAES XI) (Edinburgh 2011).
| EDOC: 17285 |

Scheinert, M.; Schwabe, J.; Eberlein, L.; Dietrich, R.; Barthelmes, F.; Förste, C.; Petrovic, S.; Pflug, H.; Lesur, V.; Gebler, A.; Geiger, A.; Wickert, J.; Beyerle, G.; Semmling, M.; Gerber, T.; Ribó, S.; Rius, A.; Cardellach, E.; Heyde, I.; Meyer, U.; Blindow, N.; Markgraf, M.; Rivas, R.; Grillenberger, A.; Jenett, M. (2011): The Application of the New German 'High Altitude and Long Range Research Aircraft' (HALO) for Airborne Geodesy and Geophysics. 25th IUGG General Assembly (Melbourne 2011).
| EDOC: 17270 |

Semmling, M.; Beyerle, G.; Ge, M.; Wickert, J.; Fabra, F.; Cardellach, E.; Ribo, S.; Rius, A. (2011): Doppler observations and the potential for GNSS-R altimetry. 2nd CNES CCT workshop on passive reflectometry using radiocom space signals (Calais, France 2011).
| EDOC: 17976 |

Shangguan, M.; Bender, M.; Wickert, J.; Löhnert, U.; Crewel, S. (2011): Comparison of atmospheric water vapor from GPS and WVR. General Assembly European Geosciences Union (Vienna, Austria 2011).
| EDOC: 17367 |

Steiner, A. K.; Ho, S.-P.; Hunt, D.; Kirchengast, G.; Mannucci, A. J.; Scherllin-Pirscher, B.; Gleisner, H.; von Engeln, A.; Schmidt, T.; Ao, C.; Leroy, S. S.; Foelsche, U.; Kuo, Y.-H.; Kursinski, E. R.; Lauritsen, K. B.; Syndergaard, S.; Marquardt, C.; Rocken, C.; Schreiner, W.; Sokolovskiy, S.; Wickert, J. (2011): Structural Uncertainty of the CHAMP RO Climate Record from Different Data Centers. 5th FORMOSAT-3 / COSMIC Data Users Workshop and International Conference on GPS Radio Occultation (ICGPSRO) (Taipei, Taiwan 2011).
| EDOC: 17352 |

Steiner, A. K.; Hunt, D.; Ho, S. P.; Kirchengast, G.; Mannucci, A. J.; Scherllin-Pirscher, B.; Gleisner, H.; von Engeln, A.; Schmidt, T.; Ao, C. O.; Leroy, S. S.; Foelsche, U.; Kuo, Y.-H.; Kursinski, E. R.; Lauritsen, K. B.; Syndergaard, S.; Gorbunov, M.; Marquardt, C.; Rocken, C.; Schreiner, W. S.; Sokolovskiy, S. V.; Wickert, J. (2011): Towards Earth System Data Records from GPS Radio Occultation: Assessing Structural Uncertainty. AGU 2011 Fall Meeting (San Francisco 2011).
| EDOC: 17977 |

Wickert, J. (2011): Remote Sensing with Navigation Satellites: Recent Activities and Results. 48th Session of the Scientific and Technical Subcommittee of the Committee on the Peaceful Uses of Outer Space (Vienna, Austria 2011).
| EDOC: 16972 |

Wickert, J. (2011): The Contribution of GFZ to GfG2. Kick-off meeting GfG2 EU Project (Barcelona 2011).
| EDOC: 16968 |

Wickert, J.; Arras, C.; Bartsch, M.; Beyerle, G.; Bender, M.; Deng, Z.; Dick, G.; Falck, C.; Ge, M.; Gendt, G.; Heise, S.; Michalak, G.; Ramatschi, M.; Schmidt, T.; Semmling, M. (2011): GPS remote sensing: Recent results from GFZ. 25th IUGG General Assembly (Melbourne 2011).
| EDOC: 17376 |

Wickert, J.; Arras, C.; Beyerle, G.; Bender, M.; Dick, G.; Ge, M.; Gendt, G.; Heise, S.; Schmidt, T.; Semmling, M.; Zus, F. (2011): GNSS based Earth Observation: Recent activities at GFZ. APSG Workshop on Space Geodesy and Its Applications for Geosciences and Space Exploitation (Melbourne, Australia 2011).
| EDOC: 17374 |

Wickert, J.; Arras, C.; Beyerle, G.; Falck, C.; Flechtner, F.; Förste, C.; Grunwaldt, L.; Faber [Haser], A.; Heise, S.; Jakowski, N.; Köhler, W.; König, R.; Lühr, H.; Massmann, F.-H.; Meehan, T.; Michalak, G.; Reigber, C.; Schmidt, T.; Zus, F. (2011): In Memoriam CHAMP: The pathfinder for operational GPS radio occultation. 5th FORMOSAT-3 / COSMIC Data Users Workshop & ICGPSRO 2011 (Taipei, Taiwan 2011).
| EDOC: 17212 |

Wickert, J.; Arras, C.; Beyerle, G.; Ge, M.; Flechtner, F.; Healy, S. B.; Heise, S.; Huan, C. Y.; Kuo, B.; Marquardt, C.; Michalak, G.; Jakowski, N.; Schmidt, T.; Semmling, M. (2011): Radio occultation with navigation satellites: Recent results and prospects with Galileo. 3rd Galileo Science Colloquium (Copenhagen 2011).
| EDOC: 17381 |

Wickert, J.; Beyerle, G.; Arras, C.; Falck, C.; Faber [Haser], A.; Heise, S.; Grunwaldt, L.; Koehler, W.; König, R.; Massmann, F.-H.; Michalak, G.; Ramatschi, M.; Schmidt, T.; Zus, F. (2011): Global atmosphere sounding with TerraSAR-X GPS radio occultation: Status and recent results, Poster. 4th TerraSAR-X Science Team Meeting (Oberpfaffenhofen 2011).
| EDOC: 16962 |

Wickert, J.; Rothacher, M.; Scheiding, M.; Segert, T.; Briess, K. (2011): GPS/Galileo-Erdbeobachtung mit Kleinsatelliten. NEREUS Workshop (Potsdam 2011).
| EDOC: 17978 |

Zus, F.; Beyerle, G.; Heise, S.; Schmidt, T.; Wickert, J. (2011): Validation of refractivity profiles derived from METOP and TerraSAR-X open-loop data. 5th FORMOSAT-3 / COSMIC Data Users Workshop and International Conference on GPS Radio Occultation (ICGPSRO) (Taipei, Taiwan 2011).
| EDOC: 17351 |

2010

Arras, C.; Beyerle, G.; Faber [Haser], A.; Heise, S.; Michalak, G.; Schmidt, T.; Semmling, M.; Stosius, R.; Wickert, J.; Zus, F. (2010): Radio occultation at GFZ: Recent activities. GRAS-SAG Meeting, EUMETSAT (Darmstadt 2010).
| EDOC: 15032 |

Arras, C.; Jacobi, C.; Wickert, J. (2010): Longitudinal distribution of sporadic E layers obtained from COSMIC GPS radio occultation measurements in the equatorial region. SCOSTEP Symposium STP12 (Berlin 2010).
| EDOC: 16057 |

Arras, C.; Jacobi, C.; Wickert, J.; Heise, S. (2010): Global sporadic E rates as derived from GPS radio occultation measurements. 38th COSPAR Scientific Assembly (Bremen 2010).
| EDOC: 16054 |

Arras, C.; Wickert, J.; Jacobi, C.; Heise, S.; Schmidt, T. (2010): Detection and analysis of sporadic E layers from GRACE, CHAMP and COSMIC GPS radio occultation measurements. GRACE Science Team Meeting (Potsdam 2010).
| EDOC: 16489 |

Bender, M.; Dick, G.; Ramatschi, M.; Deng, Z.; Shangguan, M.; Zus, F.; Stosius, R.; Ge, M.; Wickert, J. (2010): GPS Atmosphere Sounding and GPS Tomography at the GFZ. COST Action ES0702: European Ground-Based Observations of Essential Variables for Climate and Operational Meteorology (EG-CLIMET) (Königswinter/Köln 2010).
| EDOC: 16442 |

Bender, M.; Dick, G.; Wickert, J.; Raabe, A. (2010): GPS Tomography: Water Vapour Monitoring for Germany. General Assembly European Geosciences Union (Vienna, Austria 2010).
| EDOC: 15013 |

Chen, J.; Ge, M.; Dousa, J.; Gendt, G.; Ramatschi, M.; Wickert, J.; Falck, C.; Bartsch, M.; Merx, A. (2010): Evaluating and improving GNSS real-time positioning using IGS-RTPP products for tsunami early warning system. IGS Workshop and Vertical Rates Symposium (Newcastle, England 2010).
| EDOC: 15026 |

de la Torre, A.; Alexander, P.; Llamedo, P.; Hierro, R.; Rolla, A.; Schmidt, T.; Wickert, J. (2010): GW activity and horizontal propagation above Southern Andes, Drake Passage and Antarctic Peninsula UTLS with GPS radio occultations and mesoscale simulations. OPAC 2010 - Joint OPAC-4 & GRAS SAF Climate Workshop (Graz 2010).
| EDOC: 16064 |

de la Torre, A.; Alexander, P.; Llamedo, P.; Hierro, R.; Rolla, A.; Schmidt, T.; Wickert, J. (2010): Recent results on GW activity and propagation in Southern Andes and Antarctic Peninsula UTLS with GPS radio occultations. The AGU Meeting of the Americas (Foz do Iguacu, Brazil 2010).
| EDOC: 16058 |

de la Torre, A.; Alexander, P.; Llamedo, P.; Hierro, R.; Schmidt, T.; Wickert, J. (2010): Possible application of GPS RO refractivity to study wave amplitude enhancements at the tropopause region. 38th COSPAR Scientific Assembly (Bremen 2010).
| EDOC: 16045 |

de la Torre, A.; Alexander, P.; Llamedo, P.; Rolla, A.; Schmidt, T.; Wickert, J. (2010): Mountain Waves above the Southern Andes, Drake Passage and Antarctic Peninsula. 38th COSPAR Scientific Assembly (Bremen 2010).
| EDOC: 16046 |

Deng, Z.; Dick, G.; Ge, M.; Bender, M.; Zus, F.; Wickert, J. (2010): Retrieving tropospheric delay using GPS single frequency receivers. IGS Workshop and Vertical Rates Symposium (Newcastle, England 2010).
| EDOC: 15027 |

Deng, Z.; Dick, G.; Zus, F.; Ge, M.; Bender, M.; Wickert, J. (2010): Validation of slant delays derived from single and dual frequency GPS data. General Assembly European Geosciences Union (Vienna, Austria 2010).
| EDOC: 15014 |

Dick, G.; Bender, M.; Wickert, J. (2010): GFZ E-GVAP Report. 2nd E-GVAP-II Joint Expert Team Meeting (Oslo 2010).
| EDOC: 16061 |

Dousa, J.; Ge, M.; Chen, J.; Gendt, G.; Wickert, J. (2010): Implementation and Evaluation of the Real-time GNSS Processing System at GFZ. IGS Workshop and Vertical Rates Symposium (Newcastle, England 2010).
| EDOC: 15025 |

Faber [Haser], A.; Schmidt, T.; de la Torre, A.; Wickert, J.; Fischer, J. (2010): Gravity Wave Analysis with GPS Radio Occultation Data. General Assembly European Geosciences Union (Vienna, Austria 2010).
| EDOC: 15020 |

Faber [Haser], A.; Schmidt, T.; de la Torre, A.; Wickert, J.; Fischer, J. (2010): Gravity Wave Analysis with GPS Radio Occultation Data. 38th COSPAR Scientific Assembly (Bremen 2010).
| EDOC: 16055 |

Faber [Haser], A.; Schmidt, T.; de la Torre, A.; Wickert, J.; Fischer, J. (2010): Gravity Wave Analysis with GPS Radio Occultation Data. The AGU Meeting of the Americas (Foz do Iguacu, Brazil 2010).
| EDOC: 16060 |

Fagiolini, E.; Gruber, T.; Schmidt, T.; Schwarz, G.; Trautmann, Th.; Wickert, J.; Zenner, L. (2010): Quantitative Impact of Surface Pressure Variations on the Earth Gravity Field. General Assembly European Geosciences Union (Vienna, Austria 2010).
| EDOC: 15012 |

Ge, M.; Chen, J.; Dousa, J.; Gendt, G.; Wickert, J. (2010): A new approach for estimating satellite clocks from large GNSS reference networks in real-time. IGS Workshop and Vertical Rates Symposium (Newcastle, England 2010).
| EDOC: 15024 |

Ge, M.; Zou, X.; Dick, G.; Jiang, W.; Wickert, J.; Liu, J. (2010): An alternative Network RTK approach based on undifferenced observation corrections. ION GNSS ( Portland, Oregon 2010).
| EDOC: 16063 |

Heise, S.; Arras, C.; Beyerle, G.; Falck, C.; Faber [Haser], A.; Köhler, W.; Michalak, G.; Schmidt, T.; Wickert, J.; Zus, F. (2010): GPS radio occultation at GFZ: Status and recent results from GRACE. GRACE Science Team Meeting (Potsdam 2010).
| EDOC: 16420 |

Heise, S.; Beyerle, G.; Schmidt, T.; Wickert, J.; Zus, F. (2010): Operational processing of TerraSAR-X radio occultation at GFZ: Status and initial results. General Assembly European Geosciences Union (Vienna, Austria 2010).
| EDOC: 15015 |

Heise, S.; Wickert, J.; Arras, C.; Beyerle, G.; Faber [Haser], A.; Michalak, G.; Schmidt, T.; Zus, F. (2010): GPS radio occultation at GFZ: processing and application. BMBF Geotechnologien Statusseminar: 'Erfassung des Systems Erde aus dem Weltraum III' (Bonn 2010).
| EDOC: 16408 |

Heise, S.; Wickert, J.; Arras, C.; Beyerle, G.; Michalak, G.; Schmidt, T.; Zus, F. (2010): GPS Radio Occultation with CHAMP and GRACE: Climatological applications. BMBF Geotechnologien Statusseminar: 'Erfassung des Systems Erde aus dem Weltraum III' (Bonn 2010).
| EDOC: 16410 |

Jakowski, N.; Hoque, M. M.; Koch, C.; Wickert, J.; Grunwaldt, L.; Heise, S.; Köhler, W.; Schmidt, T. (2010): Vertical electron density profiles from GRACE radio occultation measurements. GRACE Science Team Meeting (Potsdam 2010).
| EDOC: 16488 |

Nafisi, V.; Wijaya, D.; Böhm, J.; Schuh, H.; Hobiger, T.; Ichikawa, R.; Urquhart, L.; Santos, M. C.; Nievinski, F. G; Zus, F.; Wickert, J.; Gegout, P.; Ardalan, A. A. (2010): Benchmarking ray-traced tropospheric delays. AGU 2010 Fall Meeting (San Francisco 2010).
| EDOC: 16493 |

Pavelyev, A. G.; Zhang, K.; Gubenko, V. N.; Pavelyev, A. A.; Salimzjanov, R. R.; Wickert, J.; Liou, Y. A.; Wang, C.-S.; Kuleshov, Y. (2010): Identification and Localization of Layers and Wave Activity in the Atmosphere and Ionosphere using the Eikonal and Amplitude of Radio Occultation Signals. OPAC 2010 - Joint OPAC-4 & GRAS SAF Climate Workshop (Graz 2010).
| EDOC: 16065 |

Pavelyev, A.; Matyugov, S.; Wickert, J.; Liou, Y. A.; Yakovlev, O. (2010): Monitoring of sporadic plasma layers in the lower ionosphere in the communication link satellite-to-satellite. 38th COSPAR Scientific Assembly (Bremen 2010).
| EDOC: 16053 |

Ramatschi, M.; Bender, M.; Dick, G.; Ge, M.; Wickert, J. (2010): 10 years ground-based GPS derived water vapour determination, towards real-time processing and 3-d modelling. AGU 2010 Fall Meeting (San Francisco 2010).
| EDOC: 16425 |

Rivas, R.; Grillenberger, A.; Markgraf, M.; Stosius, R.; Beyerle, G.; Semmling, M.; Wickert, J. (2010): GSOC'S GNSS-R instrument for the ZOIS Experiment. Workshop on GNSS Reflectometry - GNSS-R'10 (Barcelona 2010).
| EDOC: 16487 |

Scheinert, M.; Schwabe, J.; Dietrich, R.; Barthelmes, F.; Förste, C.; Petrovic, S.; Pflug, H.; Lesur, V.; Gebler, A.; Wickert, J.; Stosius, R.; Beyerle, G.; Semmling, M.; Heyde, I.; Meyer, U.; Blindow, N.; Markgraf, M.; Rivas, R.; Jenett, M.; Geiger, A. (2010): Geoscientific Research with the New German High Altitude and Long Range Research Aircraft (HALO). 2nd International Symposium of the International Gravity Field Service - IGFS (Fairbanks, Alaska 2010).
| EDOC: 16153 |

Schmidt, T.; Cammas, J.-P.; Heise, S.; Wickert, J.; Faber [Haser], A. (2010): Observational characteristics of the tropopause inversion layer derived from CHAMP/GRACE radio occultations and MOZAIC aircraft data. General Assembly European Geosciences Union (Vienna, Austria 2010).
| EDOC: 15017 |

Schmidt, T.; Cammas, J.-P.; Heise, S.; Wickert, J.; Faber [Haser], A. (2010): Observational characteristics of the tropopause inversion layer derived from CHAMP/GRACE radio occultations and MOZAIC aircraft data. AGU 2010 Fall Meeting (San Francisco, USA 2010).
| EDOC: 16496 |

Schmidt, T.; Cammas, J.-P.; Smit, H.; de la Torre, A.; Heise, S.; Wickert, J.; Faber [Haser], A. (2010): Observational characteristics of the tropopause inversion layer derived from CHAMP/GRACE radio occultations and MOZAIC aircraft data. The AGU Meeting of the Americas (Foz do Iguacu, Brazil 2010).
| EDOC: 16401 |

Schmidt, T.; Heise, S.; Wickert, J.; Faber [Haser], A.; Cammas, J.-P.; Smit, H. (2010): Observational characteristics of the tropopause inversion layer derived from CHAMP/GRACE radio occultations and MOZAIC aircraft data. 38th COSPAR Scientific Assembly (Bremen 2010).
| EDOC: 16392 |

Schmidt, T.; Heise, S.; Zus, F.; Michalak, G.; Beyerle, G.; Wickert, J.; Faber [Haser], A. (2010): Variability of the upper troposphere and lower stratosphere observed with GPS radio occultation temperatures. GRACE Science Team Meeting (Potsdam 2010).
| EDOC: 16423 |

Schmidt, T.; Heise, S.; Zus, F.; Michalak, G.; Beyerle, G.; Wickert, J.; Faber [Haser], A. (2010): Variability of the upper troposphere and lower stratosphere observed with GPS radio occultation temperatures. AGU 2010 Fall Meeting (San Francisco 2010).
| EDOC: 16494 |

Schmidt, T.; Wickert, J.; Faber [Haser], A.; Heise, S. (2010): Variability of the upper troposphere and lower stratosphere observed with GPS radio occultation bending angles and temperatures. General Assembly European Geosciences Union (Vienna, Austria 2010).
| EDOC: 15019 |

Schmidt, T.; Wickert, J.; Faber [Haser], A.; Heise, S.; Lewis, H.; de la Torre, A. (2010): Variability of the upper troposphere and lower stratosphere observed with GPS radio occultation bending angles and temperatures. 38th COSPAR Scientific Assembly (Bremen 2010).
| EDOC: 16052 |

Semmling, M.; Beyerle, G.; Stosius, R.; Wickert, J.; Fabra, F.; Cardellach, E.; Rib´o, S.; Rius, A.; Helm, A.; Yudanov, S.; d’Addio, S. (2010): Reflected GPS L1/L2 observations used for Sea Ice remote sensing and altimetry. AGU 2010 Fall Meeting (San Francisco, USA 2010).
| EDOC: 16497 |

Steiner, A. K.; Ho, S.-P.; Hunt, D.; Kirchengast, G.; Mannucci, A. J.; Scherllin-Pirscher, B.; Gleisner, H.; von Engeln, A.; Schmidt, T.; Ao, C.; Leroy, S. S.; Foelsche, U.; Kuo, Y.-H.; Kursinski, E. R.; Lauritsen, K. B.; Syndergaard, S.; Marquardt, C.; Rocken, C.; Schreiner, W.; Sokolovskiy, S.; Wickert, J. (2010): Structural Uncertainty of the CHAMP Climate Record from Different Data Centers. OPAC 2010 - Joint OPAC-4 & GRAS SAF Climate Workshop (Graz 2010).
| EDOC: 16066 |

Stosius, R.; Beyerle, G.; Semmling, M.; Helm, A.; Hoechner, A.; Wickert, J.; Lauterjung, J. (2010): Tsunami detection from space using GNSS reflections: results and activities from GFZ. Proceedings, 30th anniversary IGARSS - IEEE International Geoscience and Remote Sensing Symposium (Honolulu, HI, USA 2010), 3047-3050.
| EDOC: 16042 |

Stosius, R.; Beyerle, G.; Semmling, M.; Markgraf, M.; Ribo, S.; Eberlein, L.; Scheinert, M.; Wickert, J. (2010): GNSS-R Mission planning aboard the research aircraft HALO. Workshop on GNSS Reflectometry - GNSS-R'10 (Barcelona 2010).
| EDOC: 16486 |

Thomas, M.; Wickert, J.; Schöne, T. (2010): GPS contributions to understanding global climate change. IGS Workshop and Vertical Rates Symposium (Newcastle, England 2010).
| EDOC: 15022 |

Wickert, J.; Arras, C.; Beyerle, G.; Faber [Haser], A.; Heise, S.; Michalak, G.; Schmidt, T.; Semmling, M.; Stosius, R.; Zus, F. (2010): GPS remote sensing: Recent results from GFZ. International Beacon Satellite Symposium (Barcelona 2010).
| EDOC: 15021 |

Wickert, J.; Arras, C.; Beyerle, G.; Grunwaldt, L.; Faber [Haser], A.; Heise, S.; Michalak, G.; Schmidt, T.; Semmling, M.; Stosius, R.; Zus, F. (2010): GNSS radio occultation at GFZ: Recent results and activities. OPAC 2010 - Joint OPAC-4 & GRAS SAF Climate Workshop (Graz 2010).
| EDOC: 16067 |

Zus, F.; Bender, M.; Dick, G.; Deng, Z.; Heise, S.; Wickert, J. (2010): A new raytracing algorithm to compute slant total delays in a mesoscale atmospheric model. General Assembly European Geosciences Union (Vienna, Austria 2010).
| EDOC: 15016 |

2009

Arras, C.; Jacobi, C.; Wickert, J.; Heise, S.; Schmidt, T. (2009): Analysis of sporadic E variability derived from GPS radio occultation measurements and possible links to dynamics. General Assembly European Geosciences Union (Vienna, Austria 2009).
| EDOC: 13385 |

Arras, C.; Jacobi, C.; Wickert, J.; Heise, S.; Schmidt, T. (2009): Global sporadic E distribution from Radio Occultation measurements and its connection to Earth’s magnetic field. Kleinheubacher Tagung (Miltenberg 2009).
| EDOC: 13870 |

Bauer, H. S.; Wulfmeyer, V.; Zus, F.; Schwitalla, T.; Dick, G.; Bender, M.; Wickert, J.; Gendt, G. (2009): Current Status and First Results of the SPP1167 Project COPS-GRID. International Conference on Alpine Meteorology (ICAM) (Rastatt 2009).
| EDOC: 13392 |

Bauer, H.-S.; Wulfmeyer, V.; Schwitalla, Th.; Dick, G.; Bender, M.; Wickert, J.; Gendt, G.; Deng, Z.; Wergen, W.; Stephan, K.; Helmert, K.; Eichler, K.; Dorninger, M.; Steinacker, R.; Gorgas, T.; Arpagaus, M.; Weusthoff, T.; Kottmeier, Ch.; Blahak, U.; Wunram, C. (2009): Update of recent activities in the DFG projects COPS-GRID and D-PHASE Verification. Joint 8th COPS Workshop and CSIP Meeting 2009 (Cambridge, UK 2009).
| EDOC: 14693 |

Bender, M.; Heise, S.; Dick, G.; Wickert, J.; Raabe, A. (2009): GPS water vapour tomography for different weather situations. General Assembly European Geophysical Union (Vienna, Austria 2009).
| EDOC: 13382 |

Beyerle, G.; Grunwaldt, L.; Heise, S.; Köhler, W.; Schmidt, T.; Choi, K.-R.; Michalak, G.; König, R.; Rothacher, M.; Wickert, J. (2009): First results from the GPS atmospheric remote sensing experiment TOR aboard TerraSAR-X. General Assembly European Geosciences Union (Vienna, Austria 2009).
| EDOC: 13381 |

Chen, J.; Bender, M.; Beyerle, G.; Dick, G.; Falck, C.; Ge, M.; Gendt, G.; Heise, S.; Ramatschi, M.; Schmidt, T.; Stosius, R.; Wickert, J. (2009): GNSS Activities for Natural Disaster Monitoring and Climate Change Detection at GFZ. 2nd Conference on Earth Observation for Global Changes (EOGC2009) (Chengdu, China 2009).
| EDOC: 13370 |

Deng, Z.; Bender, M.; Dick, G.; Ge, M.; Wickert, J. (2009): Retrieving tropospheric delay using GPS single frequency receivers. General Assembly European Geosciences Union (Vienna, Austria 2009).
| EDOC: 13384 |

Dick, G.; Bender, M.; Wickert, J.; Deng, Z.; Ramatschi, M. (2009): Reprocessing and Validation of GPS-derived Water Vapor and Slant Delays for COPS. Joint 8th COPS Workshop and CSIP Meeting 2009 (Cambridge, UK 2009).
| EDOC: 14692 |

Heise, S.; Bender, M.; Beyerle, G.; Dick, G.; Gendt, G.; Schmidt, T.; Wickert, J. (2009): Integrated water vapor from IGS ground-based GPS observations: Initial results from a global 5-minute data set. General Assembly European Geosciences Union (Vienna, Austria 2009).
| EDOC: 13380 |

Heise, S.; Beyerle, G.; Grunwaldt, L.; Köhler, W.; Schmidt, T.; Choi, K.-R.; Michalak, G.; König, R.; Rothacher, M.; Wickert, J. (2009): First results from the GPS atmospheric remote sensing experiment TOR aboard TerraSAR-X. 24th Meeting of the ESA/EUMETSAT GNSS Receiver for Atmospheric Sounding Science Advisory Group (GRAS-SAG) (Darmstadt, Germany 2009).
| EDOC: 14694 |

Ho, S. P.; Kirchengast, G.; Leroy, S.; Wickert, J.; Mannucci, T.; Steiner, A.; Kuo, Y.-H.; Rocken, C.; Hunt, D.; Schreiner, W.; Sokolovskiy, S. (2009): Estimating the Uncertainty of using GPS Radio Occultation Data for Climate Monitoring: Inter-comparison of CHAMP Refractivity Climate Records 2002-2006 from Different Data Centers. 13th Conference on Integrated Observing and Assimilation Systems for Atmosphere, Oceans, and Land Surface (IOAS-AOLS) ( Arizona 2009).
| EDOC: 13318 |

Ho, S.-P.; Kirchengast, G.; Leroy, S.; Wickert, J.; Mannucci, A. J.; Steiner, A.; Kuo, Y.-H.; Rocken, C.; Hunt, D.; Schreiner, W. (2009): Quantitative Estimation of the Reproducibility of GPS RO Data for Climate monitoring: Inter-comparison of CHAMP Refractivity Climate Records 2002-2006 from Different Data Centers. General Assembly European Geosciences Union (Vienna, Austria 2009).
| EDOC: 13378 |

Khandu, A.; Awange, J. L.; Wickert, J.; Schmidt, T.; Sharifi, M. A.; Heck, B. (2009): GPS remote sensing of the Australian tropopause. IAG 2009 Scientific Assembly 'Geodesy for Planet Earth' (Buenos Aires, Argentina 2009).
| EDOC: 13820 |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Schmidt, T.; Pavelyev, A. A.; Gubenko, V. N. (2009): Phase acceleration: a new important parameter in GPS occultation monitoring of the atmospheric internal waves. General Assembly European Geosciences Union (Vienna, Austria 2009).
| EDOC: 13379 |

Scheinert, M.; Schabe, J.; Dietrich, R.; Barthelmes, F.; Förste, C.; Petrovic, S.; Pflug, H.; Lesur, V.; Gebler, A.; Geiger, A.; Wickert, J.; Stosius, R.; Beyerle, G.; Semmling, M.; Heyde, I.; Meyer, U.; Blindow, N.; Markgraf, M.; Rivas, R.; Jenett, M. (2009): Geoscientific Research with the New German 'High Altitude and Long Range Research Aircraft' (HALO). International Workshop Aerogravimetry: Technology and Applications (Dresden 2009).
| EDOC: 16167 |

Schmidt, T.; de la Torre, A.; Heise, S.; Wickert, J. (2009): A global analysis of gravity wave activity in the upper troposphere and lower stratosphere region derived from GPS radio occultation data. IAMAS/IAPSO/IACS 2009 Joint Assembly (Montreal, Canada 2009).
| EDOC: 14696 |

Schmidt, T.; Faber [Haser], A.; Wickert, J.; Heise, S.; Cammas, J.-P. (2009): Global observations in the UTLS region with GPS radio occultation data and MOZAIC aircraft measurements. UTLS Workshop (Boulder, USA 2009).
| EDOC: 14697 |

Schmidt, T.; Heise, S.; Wickert, J. (2009): Trends in the global tropopause estimated from CHAMP GPS radio occultation data. IAMAS/IAPSO/IACS 2009 Joint Assembly (Montreal, Canada, 2009).
| EDOC: 14695 |

Schmidt, T.; Wickert, J.; Faber [Haser], A.; de la Torre, A.; Alexander, P.; Heise, S.; Beyerle, G. (2009): Observing the upper troposphere and lower stratosphere with GPS radio occultation data: Results from CHAMP, GRACE, TerraSAR-X, and FORMOSAT-3/COSMIC. 4th FORMOSAT-3/COSMIC Data Users Workshop ( Boulder, USA 2009).
| EDOC: 14698 |

Stosius, R.; Beyerle, G.; Hoechner, A.; Wickert, J.; Lauterjung, J. (2009): Simulation Study on Tsunami Detection from Space Using GNSS-Reflectometry Including GALILEO. 2nd International Colloquium - Scientific and Fundamental Aspects of the Galileo Programme, COSPAR Colloquium (Padua, Italy 2009).
| EDOC: 14699 |

Thomas, M.; Sasgen, I.; Dobslaw, H.; Wickert, J. (2009): Erdsystemmodellierung - Von geodätischen Beobachtungsdaten zum Prozessverständnis. Klima im System Erde - Klimawandel - Antworten und Fragen aus den Geowissenschaften : Zusammenfassung der Konferenzbeiträge dbb forum berlin, Konferenz 2009 'Klima im System Erde' (Berlin 2009), 71.
| EDOC: 16483 |

Wickert, J. (2009): GPS Radio Occultation: Introduction, Results from CHAMP and Recent Developments. Spring Meeting Meteorological Society of Japan (Tsukuba 2009).
| EDOC: 13387 |

Wickert, J.; Arras, C.; Bender, M.; Beyerle, G.; Chen, J.; Dick, G.; Ge, M.; Heise, S.; Helm, A.; Rothacher, M.; Ramatschi, M.; Schmidt, T.; Stosius, R. (2009): GNSS atmosphere sounding at GFZ : Overview and recent results. International Technical Meeting on GNSS ( (ITM-GNSS) (Beijing 2009).
| EDOC: 13823 |

Wickert, J.; Arras, C.; Bender, M.; Beyerle, G.; Deng, Z.; Dick, G.; Gendt, G.; Heise, S.; Michalak, G.; Ramatschi, M. (2009): Ground and space based GPS atmosphere sounding: recent results from GFZ. IAG 2009 Scientific Assembly 'Geodesy for Planet Earth' (Buenos Aires, Argentina 2009).
| EDOC: 13822 |

Wickert, J.; Arras, C.; Beyerle, G.; Heise, S.; Jakowski, N.; Rothacher, M.; Schmidt, T.; Stosius, R. (2009): Scientific use of GNSS signals in space. 7. Berliner Symposium zum Thema 'Kleinsatelliten für Erderkundungsaufgaben' (7th IAA Symposium on Small Satellites for Earth Observation) (Berlin 2009).
| EDOC: 13395 |

Wickert, J.; Arras, C.; Brieß, K.; Beyerle, G.; Falck, C.; Grunwaldt, L.; Helm, A.; Herfort, M.; Heise, S.; Köhler, W.; Massmann, F. H.; Michalak, G.; Schmidt, T.; Stosius, R. (2009): GPS radio occultation at GFZ: Recent activities and plans. International Workshop GPS Radio Occultation, NASA/JPL (Pasadena 2009).
| EDOC: 13386 |

2008

Arras, C.; Lee, W.-K.; Wickert, J.; Heise, S.; Beyerle, G.; Schmidt, T.; Rothacher, M.; Jakowski, N. (2008): Electron density profiles obtained with CHAMP/GPS radio occultation measurements: Initial results from GFZ. 37th COSPAR Scientific Assembly (Montreal 2008).
| EDOC: 13115 |

Arras, C.; Lee, W.-K.; Wickert, J.; Heise, S.; Beyerle, G.; Schmidt, T.; Rothacher, M.; Jakowski, N. (2008): Ionospheric electron density profiles obtained with CHAMP/GPS occulation measurements - initial results from GFZ. General Assembly European Geosciences Union (Vienna, Austria 2008).
| EDOC: 11591 |

Arras, C.; Stolle, C.; Jacobi, C.; Wickert, J.; Heise, S.; Beyerle, G.; Schmidt, T.; Rothacher, M. (2008): The global distribution of sporadic E as derived from GPS radio occultation measurements and its variation with the Earth magnetic field. 37th COSPAR Scientific Assembly (Montreal 2008).
| EDOC: 11898 |

Arras, C.; Stolle, C.; Wickert, J.; Jacobi, C.; Heise, S.; Beyerle, G.; Schmidt, T.; Rothacher, M. (2008): Magnetic field signatures in global sporadic E distribution detected with GPS radio occultation measurements. 37th COSPAR Scientific Assembly (Montreal 2008).
| EDOC: 13356 |

Arras, C.; Stolle, C.; Wickert, J.; Jacobi, C.; Heise, S.; Beyerle, G.; Schmidt, T.; Rothacher, M. (2008): The global distribution of sporadic E as derived from GPS radio occultation measurements and its variation with the Earth magnetic field. 4th Asian Space Conference (Taipeh 2008).
| EDOC: 13308 |

Arras, C.; Wickert, J.; Jacobi, C.; Heise, S.; Beyerle, G.; Schmidt, T.; Rothacher, M. (2008): Semidiurnal tidal signature in sporadic E occurrence rates derived from GPS radio occulation measurements at mid-latidutes. 12th International Symposium on Equatorial Aeronomy (ISEA12) (Heraklion, Crete, Greece 2008).
| EDOC: 11586 |

Arras, C.; Wickert, J.; Jacobi, C.; Heise, S.; Beyerle, G.; Schmidt, T.; Rothacher, M. (2008): Sporadic E layer climatology derived from CHAMP, GRACE and COSMIC radio occultations – Initial results from GFZ Potsdam. 4th Asian Space Conference (Taipeh 2008).
| EDOC: 13307 |

Arras, C.; Wickert, J.; Jacobi, C.; Heise, S.; Beyerle, G.; Schmidt, T.; Rothacher, M. (2008): Sporadic E layer climatology derived from CHAMP, GRACE and COSMIC radio occultations – initial results from GFZ Potsdam. 12th International Symposium on Equatorial Aeronomy - ISEA (Heraklion, Crete, Greece 2008).
| EDOC: 13125 |

Bauer, H. S.; Wulfmeyer, V.; Zus, F.; Schwitalla, T.; Dick, G.; Bender, M.; Wickert, J.; Gendt, G.; Wergen, W. (2008): Current status and first results of the SPP1167 project COPS-GRID. 7th COPS Workshop (Strasbourg 2008).
| EDOC: 13317 |

Bender, M.; Dick, G.; Stosius, R.; Wickert, J.; Rothacher, M.; Raabe, A. (2008): GPS tomography utilising the German GPS network. General Assembly European Geosciences Union (Vienna, Austria 2008).
| EDOC: 11547 |

Bender, M.; Dick, G.; Wickert, J. (2008): GPS Tomography. E-GVAP Joint Meeting (Potsdam 2008).
| EDOC: 11572 |

Bender, M.; Dick, G.; Wickert, J. (2008): Near-Real-Time Water Vapour Monitoring. COST WaVaCs Workshop (Lindenberg 2008).
| EDOC: 11571 |

Beyerle, G.; Arras, C.; Schmidt, T.; Heise, S.; Wickert, J.; Helm, A.; Stosius, R.; Rothacher, M.; Montenbruck, O. (2008): GNSS Remote sensing: An opportunity for ACES. International Workshop 'ACES and Future GNSS-based Earth Observation and Navigation' (Munich 2008).
| EDOC: 11573 |

Cheng, C. Z.; Huang, C. Y.; Wang, K.; Lin, P. H.; Fong, C. J.; Wickert, J.; Hsiao, C. C. (2008): Radio Occultation Retrieval of Atmospheric Profiles in the FORMOSAT-3/COSMIC-Mission: Early Results. 4th Asian Space Conference (Taipeh 2008).
| EDOC: 13293 |

de la Torre, A.; Alexander, P.; Llamedo, P.; Luna, D.; Schmidt, T.; Wickert, J. (2008): A gravity wave analysis near to the Andes Range as detected from GPS radio occultation data and mesoscale numerical simulations. SPARC 4th General Assembly (Bologna 2008).
| EDOC: 13120 |

de la Torre, A.; Alexander, P.; Llamedo, P.; Luna, D.; Schmidt, T.; Wickert, J. (2008): A gravity wave analysis near to the Andes Range, as detected from GPS radio occultation data and mesoscale numerical simulation. 37th COSPAR Scientific Assembly (Montreal 2008).
| EDOC: 13119 |

Dick, G.; Bender, M.; Gendt, G.; Wickert, J.; Ramatschi, M.; Rothacher, M.; Zus, F. (2008): Validation and assimilation of GPS water vapor and slant delays from COPS campaign. General Assembly European Geosciences Union (Vienna, Austria 2008).
| EDOC: 11553 |

Fagiolini, E.; Flechtner, F.; Gruber, T.; Schmidt, T.; Schwarz, G.; Stammer, D.; Trautmann, T.; Wickert, J.; Zenner, L. (2008): IDEAL-GRACE: Selected Results from the First Phase. 2nd Colloqium DFG Priority Program SPP1257 Mass Transport and Mass Distribution in the Earth System (München 2008).
| EDOC: 12672 |

Fagiolini, E.; Flechtner, F.; Gruber, T.; Schmidt, T.; Schwarz, G.; Trautmann, T.; Wickert, J.; Zenner, L. (2008): Atmospheric Parameters and Geoid Heights: Mathematical Aspects. Geodätische Woche (Bremen 2008).
| EDOC: 13315 |

Fagiolini, E.; Flechtner, F.; Gruber, T.; Schmidt, T.; Schwarz, G.; Trautmann, T.; Wickert, J.; Zenner, L. (2008): Characterization of atmospheric data quality for an improved determination of Earth gravity fields. General Assembly European Geosciences Union (Vienna, Austria 2008).
| EDOC: 11550 |

Flechtner, F.; Thomas, M.; Wickert, J.; Zenner, L.; Gruber, T. (2008): Tests and Ideas for AOD1B RL05. GRACE Science Team Meeting (San Francisco 2008).
| EDOC: 13294 |

Flechtner, F.; Wickert, J.; Schmidt, T.; Meyer, U. (2008): Influence of assimilated radio occultation data on ECMWF-forced short-term non-tidal atmospheric mass variations. 4th Asian Space Conference & FORMOSAT-3/COSMIC International Workshop (Taipei, Taiwan 2008).
| EDOC: 12657 |

Flechtner, F.; Wickert, J.; Schmidt, T.; Meyer, U.; Healy, S. B. (2008): Influence of assimilated radio occultation data on ECMWF-forced short-term non-tidal atmospheric mass variations. 4th Asian Space Conference (Taipeh 2008).
| EDOC: 13306 |

Gruber, T.; Fagiolini, E.; Flechtner, F.; Schmidt, T.; Schwarz, G.; Stammer, D.; Trautmann, T.; Wickert, J.; Zenner, L. (2008): IDEAL-GRACE: Goals of the Second Phase. 2nd Colloqium DFG Priority Program SPP1257 Mass Transport and Mass Distribution in the Earth System (München 2008).
| EDOC: 12662 |

Gruber, T.; Fagiolini, E.; Flechtner, F.; Schmidt, T.; Schwarz, G.; Stammer, D.; Trautmann, T.; Wickert, J.; Zenner, L. (2008): IDEAL-GRACE: Goals of the Second Phase. 2. SPP1257-Kolloquium Massentransporte und Massenverteilungen im System Erde (München 2008).
| EDOC: 13316 |

Grzeschik, M.; Zus, F.; Bauer, S.; Wulfmeyer, V.; Wickert, J.; Dick, G.; Gendt, G.; Bender, M.; Offiler, D. (2008): Assimilation of ground-based GPS observations into the MM5 4D-Var system. General Assembly European Geosciences Union (Vienna, Austria 2008).
| EDOC: 11551 |

Gubenko, V. N.; Pavelyev, A. G.; Andreev, V. E.; Liou, Y. A.; Wickert, J. (2008): Derivation of the intrinsic frequency and other internal gravity wave parameters from a single vertical temperature profile: applications to the radio occultation temperature data obtained from GPS/FORMOSAT-3 and CHAMP missions. 37th COSPAR Scientific Assembly (Montreal 2008).
| EDOC: 13112 |

Heise, S.; Gendt, G.; Dick, G.; Schmidt, T.; Wickert, J.; Rothacher, M. (2008): Validation of integrated water vapour from IGS ground-based GPS observations with sun photometer measurements. General Assembly European Geosciences Union (Vienna, Austria 2008).
| EDOC: 11552 |

Heise, S.; Wickert, J.; Gendt, G.; Dick, G.; Rothacher, M. (2008): Global water-vapour monitoring by ground and space-based GPS observations. COST WaVaCs Workshop (Lindenberg 2008).
| EDOC: 11570 |

Helm, A.; Beyerle, G.; Stosius, R.; Montenbruck, O.; Yudanov, S.; Nitschke, M.; Gruber, T.; Hess, M. P.; Wickert, J.; Rothacher, M. (2008): GNSS Reflectometry at GFZ. Workshop on 'ACES and Future GNSS-based Earth Observation and Navigation' (München 2008).
| EDOC: 11557 |

Helm, A.; Stosius, R.; Montenbruck, O.; Yudanov, S.; Renaudie, C.; Bender, M.; Dick, G.; Beyerle, G.; Wickert, J.; Rothacher, M. (2008): GNSS-R carrier phase altimetry with GPS L2C signals and status of the GORS and GORS follow-on space receiver prototypes. GNSS-R’08 Workshop on GNSS Reflectometry (Noordwijk 2008).
| EDOC: 12003 | Abstract |

Ho, S. P.; Kuo, Y. H.; Hunt, D.; Rocken, C.; Schreiner, W. B.; Sokolovskiy, S.; He, W.; Wickert, J.; Mannuci, A. J. (2008): Quantitative Estimation of the Reproducibility of GPS RO Data for Climate Research. 4th Asian Space Conference (Taipeh 2008).
| EDOC: 13297 |

Lee, W.- K.; Chung, J.- K.; Cho, S.; Yoon, J.- C.; Chun, Y.- S.; Wickert, J. (2008): Comparison of electron density profile from CHAMP GPS radio occulation data with CHAMP PLP and ionosonde measurements during the Halloween event in 2003. General Assembly European Geosciences Union (Vienna, Austria 2008).
| EDOC: 11555 |

Luna, D.; Alexander, P.; de la Torre, A.; Llamedo, P.; Schmidt, T.; Wickert, J. (2008): Comparisons of temperature profiles from nearby GPS radio occultations over a high wave activity region. 37th COSPAR Scientific Assembly (Montreal 2008).
| EDOC: 13118 |

Luna, D.; Alexander, P.; de la Torre, A.; Llamedo, P.; Schmidt, T.; Wickert, J. (2008): Seasonal analysis of gravity waves over the southern Andes and the Antarctic Peninsula by means of GPS radio occultations. SPARC 4th General Assembly (Bologna 2008).
| EDOC: 13121 |

Pavelyev, A. G.; Gubenko, V. N.; Liou, Y. A.; Wickert, J.; Pavelyev, A. A. (2008): Application of the GPS radio occultation technology for studying of the internal waves in the atmosphere (solicited). General Assembly European Geosciences Union (Vienna, Austria 2008).
| EDOC: 11548 |

Pavelyev, A. G.; Gubenko, V. N.; Wickert, J.; Liou, Y. A.; Pavelyev, A. A. (2008): Layered Structures and Internal Waves in the Ionosphere and Atmosphere as Seen from GPS Occultation Data. 37th COSPAR Scientific Assembly (Montreal 2008).
| EDOC: 13113 |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Gubenko, V. N. (2008): Applications and Advances of the GPS Radio Occultation Technology as recovered by Analysis of the FORMOSAT-3 and CHAMP data base. 4th Asian Space Conference (Taipeh 2008).
| EDOC: 13292 |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Pavelyev, A. A. (2008): Effects of radio wave propagation as revealed from GPS radio occultation experiments. 4th Asian Space Conference (Taipeh 2008).
| EDOC: 13291 |

Poli, P.; Beyerle, G.; Schmidt, T.; Wickert, J. (2008): Assimilation of GPS radio occulation measurements at Météo-France. ECMWF/GRAS SAF joint workshop on 'The assimilation of GPS radio-occultation (GPS RO) measurements', ECMWF (Reading, UK 2008).
| EDOC: 11576 |

Schmidt, T.; Arras, C.; Beyerle, G.; Heise, S.; Wickert, J.; Rothacher, M. (2008): Trends in the global tropopause estimated from GPS radio occultation data. 37th COSPAR Scientific Assembly (Montreal 2008).
| EDOC: 13117 |

Schmidt, T.; Arras, C.; Beyerle, G.; Heise, S.; Wickert, J.; Rothacher, M. (2008): Trends in the global tropopause estimated from GPS radio occultation data. 37th COSPAR Scientific Assembly (Montreal 2008).
| EDOC: 13298 |

Schmidt, T.; de la Torre, A.; Alexander, P.; Arras, C.; Beyerle, G.; Heise, S.; Llamedo, P.; Wickert, J.; Rothacher, M. (2008): A global analysis of gravity wave activity in the upper troposphere and lower stratosphere region derived from GPS radio occultation data. SPARC 4th General Assembly (Bologna 2008).
| EDOC: 13122 |

Schmidt, T.; de la Torre, A.; Alexander, P.; Arras, C.; Beyerle, G.; Heise, S.; Llamedo, P.; Wickert, J.; Rothacher, M. (2008): Trends in the global tropopause estimated from GPS radio occultation data. SPARC 4th General Assembly (Bologna 2008).
| EDOC: 13123 |

Schmidt, T.; de la Torre, A.; Alexander, P.; Beyerle, G.; Heise, S.; Llamedo, P.; Viehweg, C.; Wickert, J.; Rothacher, M. (2008): A global analysis of gravity wave activity in the upper troposphere and lower stratosphere region derived from GPS radio occultation data. 37th COSPAR Scientific Assembly (Montreal 2008).
| EDOC: 13116 |

Schmidt, T.; Fagiolini, E.; Flechtner, F.; Heise, S.; Wickert, J. (2008): Comparison of ECMWF analyses with GPS radio occultations. General Assembly European Geosciences Union (Vienna, Austria 2008).
| EDOC: 11549 |

Schmidt, T.; Fagiolini, E.; Schwarz, G.; Trautmann, Th.; Wickert, J. (2008): The determination of representative errors for the atmospheric parameters. 2nd Colloqium DFG Priority Program SPP1257 Mass Transport and Mass Distribution in the Earth System (München 2008).
| EDOC: 13348 |

Stosius, R.; Helm, A.; Beyerle, G.; Hoechner, A.; Wickert, J.; Rothacher, M. (2008): Simulation of GNSS-R tsunami detection from space applied to the 2004 Sumatra tsunami event. GNSS-R’08 Workshop on GNSS Reflectometry (Noordwijk 2008).
| EDOC: 12649 |

Svehla, D.; Rothacher, M.; Salomon, C.; Beyerle, G.; Wickert, J.; Helm, A.; Ziebart, M.; Dow, J.; Cacciapuoti, L. (2008): Galileo on board International Space Station and combination with the ACES Mission. 22nd European Frequency and Time Forum (Toulouse, France 2008).
| EDOC: 11561 |

Svehla, D.; Rothacher, M.; Salomon, C.; Beyerle, G.; Wickert, J.; Helm, A.; Ziebart, M.; Dow, J.; Cacciapuoti, L.; Börner, T.; Montenbruck, O.; Rivas, R.; Rius, A.; Cardellach, E.; Gruber, T. (2008): GALILEO on board the International Space Station, the last 5 years. GNSS-R’08 Workshop on GNSS Reflectometry (Noordwijk 2008).
| EDOC: 13126 |

Svehla, D.; Rothacher, M.; Salomon, C.; Wickert, J.; Helm, A.; Beyerle, G.; Ziebarth, M.; Dow, J. (2008): Geodesy Part of the ACES Mission: GALILEO on Board the International Space Station. International Workshop 'ACES and Future GNSS-based Earth Observation and Navigation' (Munich 2008).
| EDOC: 11574 |

Wickert, J. (2008): GPS Atmosphere Sounding at GFZ: Overview and recent results. 2. Jahreskongress Nutzung des Weltraums (Berlin 2008).
| EDOC: 11577 |

Wickert, J. (2008): Remote sensing of the Earth‘s atmosphere with navigation satellites: Introduction. International School and Lecture Series on Atmospheric-Ionospheric, Remote Sounding and Modelling ISAR-NCU 2008 (Chung-Li, Taiwan 2008).
| EDOC: 13310 |

Wickert, J. (2008): Space and ground-based atmosphere sounding and modelling - Part 1, Part 2. 2008 International School on Atmospheric-ionospheric Remote sounding and modeling at National Central University (ISAR - NCU) (Chung Li, Taiwan 2008).
| EDOC: 13311 |

Wickert, J.; Arras, C.; Ao, C. O.; Beyerle, G.; Falck, C.; Grunwaldt, L.; Healy, S. B.; Heise, S.; Helm, A.; Huang, C. Y.; Jakowski, N.; König, R.; Mannucci, T.; Mayer, C.; Michalak, G.; Rothacher, M.; Schmidt, T.; Stosius, R.; Tapley, B. (2008): Tapley CHAMP, GRACE, SAC-C, TerraSAR-X/Tandem-X, Science results, status and future prospects. ECMWF/GRAS SAF joint workshop on 'The assimilation of GPS radio-occultation (GPS RO) measurements', ECMWF (Reading, UK 2008).
| EDOC: 11575 |

Wickert, J.; Arras, C.; Bender, M.; Beyerle, G.; Dick, G.; Heise, S.; Helm, A.; Schmidt, T.; Stosius, R.; Rothacher, M. (2008): Water vapor measurements using GPS: Recent activities at GFZ Potsdam. International PGGM-IAGOS Workshop (Taipeh 2008).
| EDOC: 11587 |

Wickert, J.; Arras, C.; Beyerle, G.; Dick, G.; Heise, S.; Helm, A.; Ramatschi, M.; Schmidt, T.; Stosius, R.; Rothacher, M. (2008): GPS Atmosphere Sounding at GFZ: Overview and comparison of CHAMP data with MOZAIC. International PGGM-IAGOS Workshop (Taipeh 2008).
| EDOC: 11569 |

Wickert, J.; Arras, C.; Beyerle, G.; Falck, C.; Grunwaldt, L.; Helm, A.; Heise, S.; Köhler, W.; König, R.; Michalak, G.; Ramatschi, M.; Rothacher, M.; Schmidt, T.; Stosius, R. (2008): GPS radio occultation: Recent results from GFZ. 4th Asian Space Conference (Taipeh 2008).
| EDOC: 13296 |

Wickert, J.; Arras, C.; Beyerle, G.; Falck, C.; Grunwaldt, L.; Helm, A.; Heise, S.; Köhler, W.; König, R.; Michalak, G.; Ramatschi, M; Rothacher, M.; Schmidt, T.; Stosius, R. (2008): GPS radio occultation: Recent activities at GFZ. 4th Asian Space Conference & FORMOSAT-3/COSMIC International Workshop (Taipei, Taiwan 2008).
| EDOC: 12173 |

Wickert, J.; Beyerle, G.; Arras, C.; Choi, K. R.; Falck, C.; Heise, S.; Grunwaldt, L.; Köhler, W.; Massmann, F. H.; Michalak, G.; Ramatschi, M.; Rothacher, M.; Schmidt, T.; Tapley, B. (2008): GPS radio occultation with TerraSAR-X: Introduction, status and initial results. 3rd TerraSAR-X Science Team Meeting (München 2008).
| EDOC: 13295 |

Wickert, J.; Beyerle, G.; Arras, C.; Choij, K.R.; Falck, C.; Heise, S.; Grunwaldt, L.; Köhler, W.; König, R.; Massmann, F.-H.; Michalak, G.; Ramatschi, M.; Rothacher, M.; Tapley, B. (2008): GPS radio occultation with TerraSAR-X: Introduction, status and initial results. 2nd TerraSAR-X Science Meeting (Oberpfaffenhofen 2008).
| EDOC: 12172 |

Wulfmeyer, V.; Bauer, H.- S.; Gendt, G.; Wickert, J.; Wergen, W. (2008): High-Resolution Reanalyses and Impact Studies for Improving Process Understanding and Precipitation Forecast Skill based on the COPS Data Set (COPS-GRID). SPP 1167 'Quantitative Niederschlagsvorhersage' - Kickoff Meeting zur Phase III (Bonn 2008).
| EDOC: 11560 |

2007

Bender, M.; Dick, G.; Schmidt, T.; Wickert, J.; Song, S.; Gendt, G.; Ge, M.; Rothacher, M. (2007): Assimilation von GPS STD Messungen mit dem MM5 4DVAR System. DACH Meteorologentagung (Hamburg 2007).
| EDOC: 10346 |

Bender, M.; Dick, G.; Schmidt, T.; Wickert, J.; Song, S.; Gendt, G.; Rothacher, M. (2007): Validierung von GPS Slant Delays mit Wasserdampf-Radiometern und dem LM. DACH Meteorologentagung (Hamburg 2007).
| EDOC: 10344 |

Bender, M.; Dick, G.; Wickert, J.; Gendt, G.; Rothacher, M. (2007): Bereitstellung und Validierung von Slants für die GPS-Wasserdampf-Tomographie. Geodätische Woche (Leipzig 2007).
| EDOC: 10347 |

Bender, M.; Wickert, J.; Dick, G.; Rothacher, M.; Raabe, A. (2007): GPS water vapour tomography with the German GPS network. General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10183 |

Beyerle, G.; Michalak, G.; Schmidt, T.; Wickert, J.; Rothacher, M. (2007): Atmospheric remote sensing using spaceborne GNSS radio occultation: the feasibility of on-board data pre-processing. General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10200 |

de la Torre, A.; Alexander, P.; Llamedo, P.; Menéndez, C.; Schmidt, T.; Wickert, J. (2007): Gravity wave analysis in Mendoza (Argentina), from GPS radio occultation data and MM5 simulations. General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10192 |

de la Torre, A.; Schmidt, T.; Wickert, J. (2007): A long period (2001-2007) wave activity global analysis in the troposphere-stratosphere system, from GPS RO CHAMP temperature data. General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10193 |

de la Torre, A.; Schmidt, T.; Wickert, J.; Alexander, P.; Llamedo, P. (2007): Wave activity in the vicinity of the tropopause, calculated from GPS radio occultation a) temperature and b) potential temperature profiles. General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10191 |

Dick, G.; Song, S. L.; Gendt, G.; Wickert, J.; Ge, M.; Rothacher, M. (2007): Retrieval of water vapour slant delays from the German GPS network. General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10196 |

Ern, M.; Preusse, P.; Krebsbach, M.; Schmidt, T.; Wickert, J.; Picard, R.; Mlynczak, M.; Russell III, J. (2007): QBO and SAO effects in gravity wave activity derived from SABER temperatures. General Assembly European Geoscience Union (EGU) (Vienna, Austria 2007).
| EDOC: 10190 |

Foelsche, U.; Borsche, M.; Pirscher, B.; Steiner, A. K.; Wickert, J.; Kirchengast, G. (2007): Climate monitoring with CHAMP and FORMOSAT-3/COSMIC radio occultation data. General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10194 |

Heise, S.; Gendt, G.; Dick, G.; Schmidt, T.; Wickert, J.; Rothacher, M. (2007): Integrated water vapour from IGS ground-based GPS observations: A global dataset. General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10184 |

Helm, A.; Wickert, J.; Beyerle, G.; Schmidt, T.; Heise, S.; Stosius, R.; Sobolev, S. V.; Babeyko, A. Y.; Rothacher, M.; Yudanov, S.; Ashjaee, J.; Chen, R.; Rocken, C. (2007): New GNSS Remote Sensing Opportunities with ACES. ACES IWG Meeting (Paris 2007).
| EDOC: 10934 |

Michalak, G.; Wickert, J.; König, R.; Rothacher, M. (2007): Precise orbit determination of COSMIC/Formosat-3 satellites for radio occultations. General Assembly European Geoscience Union (EGU) (Vienna, Austria 2007).
| EDOC: 10186 |

Michalak, G.; Wickert, J.; König, R.; Rothacher, M. (2007): Precise satellite orbit determination for GPS radio occultation in near-real time (NRT). General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10185 |

Pavelyev, A. A; Gubenko, V.; Wickert, J.; Liou, Y. A.; Pavelyev, A. G.; Schmidt, T. (2007): Atmospheric Internal Waves Characteristics found from CHAMP and FORMOSAT3 Radio Occultation Amplitude and Phase Data. General Assembly European Geoscience Union (EGU) (Vienna, Austria 2007).
| EDOC: 10188 |

Pavelyev, A. G.; Gubenko, V.; Wickert, J.; Liou, Y. A.; Pavelyev, A. A.; Schmidt, T. (2007): Geographical Distribution of Potential and Kinetic Energy of Internal Waves in the Atmosphere found from CHAMP and FORMOSAT3 Radio Occultation Data. General Assembly European Geoscience Union (EGU) (Vienna, Austria 2007).
| EDOC: 10187 |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Pavelyev, A. A.; Igarashi, K. (2007): GPS occultation signals as a radio holographic meter to study climatology of internal waves in the atmosphere on a global scale. General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10198 |

Schmidt, T.; de la Torre, A.; Beyerle, G.; Heise, S.; Viehweg, C.; Wickert, J.; Rothacher, M. (2007): Global analysis of gravity wave potential energy in the lower stratosphere derived from GPS radio occultation data. General Assembly European Geoscience Union (EGU) (Vienna, Austria 2007).
| EDOC: 10189 |

Viehweg, C.; Wickert, J.; Heise, S.; Jacobi, C.; Beyerle, G.; Schmidt, T.; Rothacher, M. (2007): Global distribution of plasma irregularities in the lower ionosphere derived from GPS radio occultation data. General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10195 |

Wickert, J.; Beyerle, G.; Cheng, F. Z.; Healy, S.; Heise, S.; Michalak, G.; Rocken, C.; Rothacher, M.; Schmidt, T.; Viehweg, C.; Tapley, B. (2007): Global atmospheric sounding using GPS radio occultation: Recent results from CHAMP, GRACE and COSMIC/FORMOSAT-3 (solicited). General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10199 |

Wickert, J.; Michalak, G.; Schmidt, T.; Beyerle, G.; Falck, C.; Galas, R.; Heise, S.; Healy, S.; Viehweg, C.; Flechtner, F.; Grunwaldt, L.; Köhler, W.; König, R.; Massmann, F.-H.; Offiler, D.; Rhodin, A.; Reigber, C.; Rothacher, M.; Tapley, B. (2007): GPS radio occultation: Operational sounding of the atmosphere with GRACE. General Assembly European Geosciences Union (EGU) (Vienna, Austria 2007).
| EDOC: 10197 |

Wickert, J.; Michalak, G.; Schmidt, T.; Beyerle, G.; Falck, C.; Heise, S.; Viehweg, C.; Flechtner, F.; Grunwaldt, L.; Köhler, W.; König, R.; Massmann, F.-H.; Pingel, D.; Rothacher, M.; Tapley, B. (2007): GPS radio occultation with GRACE: Recent results from GFZ. Joint International GSTM and DFG SPP Symposium (Potsdam 2007).
| EDOC: 10473 |

2006

Borsche, M.; Kirchengast, G.; Foelsche, U.; Gobiet, A.; Steiner, A. K.; Schmidt, T.; Wickert, J. (2006): Tropical tropopause variability from four years of CHAMP radio occultation data. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8923 |

de la Torre, A.; Alexander, P.; Llamedo Soria, P.; Menéndez, C.; Schmidt, T.; Wickert, J. (2006): An Analysis of Gravity Wave Activity near to the Andes Mountains, from GPS Radio Occultation Long Term Data. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8902 |

de la Torre, A.; Schmidt, T.; Wickert, J. (2006): A Global Analysis of Wave Potential Energy in the Lower and Middle Atmosphere, from GPS Radio Occultation Long Term Data. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8901 |

Dick, G.; Song, S. L.; Ge, M.; Wickert, J.; Gendt, G.; Heise, S.; Rothacher, M.; Schraff, C. (2006): Retrieval of Water Vapor Slant Delays for Numerical Weather Predictions in Germany. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8921 |

Ern, M.; Krebsbach, M.; Preusse, P.; Fröhlich, K.; Hoffmann, P.; Jacobi, C.; Schmidt, T.; Wickert, J. (2006): GW-CODE: Gravity wave coupling processes and their decadal variation. Abstracts / 4th Workshop on Long-Term Changes and Trends in the Atmosphere, 4th IAGA/ICMA/CAWSES Workshop on Long-Term Changes and Trends in the Atmosphere (Sodankylä, Finland 2006), 32.
| EDOC: 9555 |

Ern, M.; Krebsbach, M.; Preusse, P.; Fröhlich, K.; Stober, G.; Jacobi, C.; Schmidt, T.; Wickert, J. (2006): Gravity wave coupling processes and their decadal variation (GW-CODE): first results. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8910 |

Ern, M.; Krebsbach, M.; Preusse, P.; Fröhlich, K.; Stober, G.; Jacobi, C.; Schmidt, T.; Wickert, J. (2006): Gravity wave coupling processes and their decadal variation (GW-CODE): first results. CAWSES Workshop on Ice Layers (Kühlungsborn 2006).
| EDOC: 8915 |

Foelsche, U.; Borsche, M.; Gobiet, A.; Steiner, A. K.; Lackner, B. C.; Pirscher, B.; Kirchengast, G.; Wickert, J.; Schmidt, T. (2006): Global climatologies based on RO data from CHAMP and FORMOSAT-3/COSMIC. First Formosat-3/COSMIC Data Users Workshop (Boulder, Colorado U.S.A 2006).
| EDOC: 10178 |

Foelsche, U.; Borsche, M.; Gobiet, A.; Steiner, A. K.; Lackner, B.; Pirscher, B.; Wickert, J.; Schmidt, T.; Kirchengast, G. (2006): Climatologies of the global atmosphere based on radio occultation data from CHAMP. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8911 |

Fröhlich, K.; Schmidt, T.; Ern, M.; Preusse, P.; de la Torre, A.; Wickert, J.; Jacolbi, Ch. (2006): The influence of global dependence of gravity wave energy in the troposphere derived from GPS data on a model parameterization. 3rd IAGA/ICMA Workshop - Vertical Coupling in the Atmosphere-Ionosphere System (Varna, Bulgaria 2006).
| EDOC: 9556 |

Ge, S.; Shum, C. K.; Chao, B. F.; Wickert, J. (2006): Initial Validation of FM-3/COSMIC Retrieved Atmospheric Pressure Fields over Antarctica. AGU 2006 Fall Meeting (San Francisco, USA 2006).
| EDOC: 10173 |

Heise, S.; Beyerle, G.; Healy, S.; Jakowski, N.; Schmidt, T.; Wickert, J. (2006): Fernerkundung der Erdatmosphäre mit GPS-Radiookkultation. Workshop Neue Erdbeobachtungstechnologien - GITEWS Kick-Off Meeting (Potsdam 2006).
| EDOC: 8935 |

Heise, S.; Dick, G.; Gendt, G.; Wickert, J.; Leiterer, U.; Dier, H.; Vogel, B. (2006): Comparison of total column water vapour estimates from ground-based GPS and sun photometer observations. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8917 |

Heise, S.; Wickert, J.; Beyerle, G.; Schmidt, T.; Smit, H.; Cammas, J.-P.; Rothacher, M. (2006): Comparison of water vapour and temperature results from GPS radio occultation aboard CHAMP with MOZAIC aircraft measurements. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8919 |

Michalak, G.; Wickert, J.; König, R.; Rothacher, M. (2006): Precise satellite orbit determination for GPS radio occultation in near-realtime. GEOTECHNOLOGIEN Statusseminar 'Observation the system Earth from Space' (Bonn 2006).
| EDOC: 9557 |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Pavelyev, A. A.; Schmidt, T.; Gubenko, V. N. (2006): Application of GPS radio occultation method for observation of the internal waves in the atmosphere with global coverage. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8922 |

Pavelyev, A. G.; Wickert, J.; Liou, Y. A.; Pavelyev, A. A.; Schmidt, T.; Igarashi, K. (2006): Radio-Holographic Location of Internal Waves in the Ionosphere and Atmosphere. 36th COSPAR Scientific Assembly (Beijing, China 2006).
| EDOC: 9560 |

Pavelyev, A. G.; Wickert, J.; Liou, Y. A.; Pavelyev, A. A.; Schmidt, T.; Igarashi, K. (2006): Radio-Holographic Location of InternalWaves in the Ionosphere and Atmosphere. First Formosat-3/COSMIC Data Users Workshop (Boulder, Colorado U.S.A 2006).
| EDOC: 10177 |

Schmidt, T.; Beyerle, G.; Heise, S.; Wickert, J.; Rothacher, M. (2006): A climatology of multiple tropopauses from GPS radio occultation data. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8912 |

Schmidt, T.; Beyerle, G.; Heise, S.; Wickert, J.; Rothacher, M. (2006): Global climatologies of multiple tropopauses and gravity wave activity in the lower stratosphere with a five year GPS radio occultation data set from CHAMP. COST 723 Final Workshop (Sofia, Bulgaria 2006).
| EDOC: 8914 |

Schmidt, T.; Beyerle, G.; Heise, S.; Wickert, J.; Rothacher, M. (2006): Multiple Tropopauses in GPS Radio Occultation Data - a 5 year Climatology. 36th COSPAR Scientific Assembly (Beijing, China 2006).
| EDOC: 9532 |

Schmidt, T.; de la Torre, A.; Beyerle, G.; Heise, S.; Wickert, J.; Rothacher, M. (2006): Global Analysis of Gravity Wave Potential Energy in the upper Troposphere and lower Stratosphere derived from 5 years of GPS Radio Occultation Data. 36th COSPAR Scientific Assembly (Beijing, China 2006).
| EDOC: 9531 |

Song, S. L.; Wickert, J. (2006): GPS radio occultation with CHAMP: Derivation and validation of atmospheric excess phase data. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8920 |

Takahashi, H.; Wrasse, C. M.; Fechine, J.; Medeiros, A. F.; Wickert, J.; Gobbi, D.; Nakamura, T.; Shiokawa, K. (2006): Atmospheric gravity wave activity in the equatorial region observed by optical and radio-wave techniques. 36th COSPAR Scientific Assembly (Beijing, China 2006).
| EDOC: 9561 |

Wickert, J.; Beyerle, G.; Cheng, F.; Healy, S. B.; Heise, S.; Huang, C. Y.; Michalak, G.; Offiler, D.; Rothacher, M.; Schmidt, T.; Viehweg, Ch.; Tapley, B. (2006): GPS radio occultation: News from CHAMP and GRACE, initial results from COSMIC/Formosat-3 data analysis. AGU 2006 Fall Meeting (San Francisco, USA 2006).
| EDOC: 9569 |

Wickert, J.; Beyerle, G.; Falck, C.; Flechtner, F.; Galas, R.; Grunwaldt, L.; Healy, S.; Heise, S.; Köhler, W.; König, R.; Massmann, F.-H.; Michalak, G.; Offiler, D.; Rhodin, A.; Rothacher, M.; Schmidt, T.; Wergen, W. (2006): Global atmospheric data from CHAMP and GRACE in near-real time. GEOTECHNOLOGIEN Statusseminar 'Observation the system Earth from Space' (Bonn 2006).
| EDOC: 9529 |

Wickert, J.; Beyerle, G.; Heise, S.; Schmidt, T.; Michalak, G.; König, R.; Jakowski, N.; Rothacher, M.; Typley, B. (2006): GPS radio occultation with CHAMP and GRACE: Overview, recent results and outlook to Metop. First EPS/MetOp RAO Workshop (Frascati, Italy 2006).
| EDOC: 8899 |

Wickert, J.; Michalak, G.; Schmidt, T.; Beyerle, G.; Heise, S.; Viehweg, C.; Cheng, C. Z.; Flechtner, F.; Grunwaldt, L.; Healy, S.; König, R.; Massmann, F.-H.; Offiler, D.; Rhodin, A.; Reigber, C.; Rothacher, M.; Tapley, B. (2006): Global atmospheric data from GRACE: First results and status. GRACE Science Team Meeting (San Francisco, USA 2006).
| EDOC: 9568 |

Wickert, J.; Michalak, G.; Schmidt, T.; Beyerle, G.; Heise, S.; Viehweg, Ch.; Aparicio, J.; Cheng, C. Z.; Healy, S. B.; Huang, C. Y.; Ozawa, E.; Offiler, D.; Rothacher, M.; Tapley, B. (2006): GPS radio occultation: Overwiev on CHAMP and GRACE results. FORMASAT-3/COSMIC-Workshop (Taipei, Taiwan 2006).
| EDOC: 9567 |

Wickert, J.; Schmidt, T.; Beyerle, G.; Heise, S.; Tapley, B.; Flechtner, F.; Rothacher, M. (2006): GPS-based atmopsheric sounding with CHAMP and GRACE: Preliminary results of comparative data analysis. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8916 |

Wickert, J.; Schmidt, T.; Michalak, G.; Healy, S. B.; Beyerle, G.; Falck, C.; Galas, R.; Heise, S.; Köhler, W.; Rothacher, M.; Offiler, D.; Wergen, W. (2006): GPS based atmospheric sounding with CHAMP: near real time provision of occultation data for numerical weather prediction. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 9081 |

Wickert, J. (2006): GPS-based atmospheric sounding with CHAMP: Near real-time provision of occultation data for numerical weather prediction. 3rd General Assembly European Geosciences Union (Vienna, Austria 2006).
| EDOC: 8918 |

Wrasse, C. M.; Fechine, J.; Takahashi, H.; Denardini, C. M.; Wickert, J.; Mlynczak, M. G.; Russell, J. M. (2006): Temperature comparison in the lower atmosphere between CHAMP radio occultation and TIMED/SABER measurements. 36th COSPAR Scientific Assembly (Beijing, China 2006).
| EDOC: 9562 |

Wrasse, C. M.; Takahashi, H.; Fechine, J.; Medeiros, A. F.; Wickert, J.; Denardini, C. M. (2006): Gravity wave signatures in the stratosphere over Equator. 36th COSPAR Scientific Assembly (Beijing, China 2006).
| EDOC: 9563 |

2005

Beyerle, G.; Schmidt, T.; Michalak, G.; Wickert, J.; Reigber, C. (2005): GPS radio occultation with GRACE: Atmospheric profiling utilizing the zero difference technique. 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).
| EDOC: 7217 |

Engeln, A. von; Teixeira, J.; Wickert, J. (2005): The Impact of thin water vapor layers on radio occultation data. 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).
| EDOC: 7220 |

Foelsche, U.; Gobiet, A.; Steiner, A. K.; Kirchengast, G.; Borsche, M.; Pirscher, B.; Lackner, B.; Schmidt, T.; Wickert, J. (2005): Towards Benchmark Climatologies of the Global Atmosphere with Radio Occultation Data from CHAMP. AGU 2005 Fall Meeting (San Francisco, USA 2005).
| EDOC: 8323 |

Foelsche, U.; Gobiet, A.; Steiner, A. K.; Kirchengast, G.; Borsche, M.; Wickert, J. (2005): CHAMPCLIM: Observing climate with CHAMP radio occultation data (solicited). 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).
| EDOC: 7214 |

Gobiet, A.; Foelsche, F.; Steiner, A. K.; Borsche, M.; Kirchengast, G.; Wickert, J. (2005): Validation of stratospheric temperatures in ECMWF analyses with CHAMP radio occultation climatologies from March 2002 to August 2004. 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).
| EDOC: 7222 |

Heise, S.; Beyerle, G.; Schmidt, T.; Wickert, J. (2005): Tropospheric water vapor retrieval with GPS radio occultationaboard CHAMP. 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).
| EDOC: 7218 |

Nedoluha, G. E.; Benson, C. M.; Alfred, J.; Hoppel, K. W.; Wickert, J.; Drdla, K. (2005): Interannual Consistency of Temperature Analyses in the Antarctic Stratosphere, 1998-2004. AGU 2005 Fall Meeting (San Francisco, USA 2005).
| EDOC: 8322 |

Pavelyev, A. A.; Wickert, J.; Liou, Y. A.; Schmidt, T.; Pvelyev, A. G. (2005): Solar activity influence as seen in the GPS radio occultation data. 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).
| EDOC: 7221 |

Pavelyev, A. G.; Liou, Y. A.; Wickert, J.; Gubenko, V. N. (2005): Characteristics of the internal gravity waves in the middle atmosphere obtained from analysis of the GPS occultation data. 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).
| EDOC: 7215 |

Pavelyev, A. G.; Wickert, J.; Liou, Y. A.; Pavelyev, A. A.; Schmidt, T.; Igarashi, K. (2005): GPS Amplitude Radio Holography: Application to Remote Sensing of the Atmospheric and Ionospheric Processes. 26th Asian Conference on Remote Sensing (ACRS) (Hanoi, Vietnam 2005).
| EDOC: 8324 |

Pavelyev, A.; Wickert, J.; Liou, Y. A.; Pavelyev, A. A.; Schmidt, T.; Matyugov, S. S. (2005): Results of radio holografic analysis of GPS occultation signals registered during CHAMP and GPS/MET small satellites missions. 5th IAA Symposium on Small Satellites for Earth Observation (Berlin 2005).
| EDOC: 7209 |

Preusse, P.; Wickert, J.; Ern, M.; Jacobi, C. (2005): SABER and GPS, the prospective of continuous global gravity wave data from solar max to solar min. 69. Jahrestagung der Deutschen Physikalischen Gesellschaft (DPG) (Berlin 2005).
| EDOC: 7185 |

Schmidt, T.; Beyerle, G.; Wickert, J. (2005): Global temperature monitoring of the upper troposphere and lower stratosphere region with GPS radio occultations. IAMAS (Beijing, China 2005).
| EDOC: 7922 |

Schmidt, T.; Wickert, J.; Heise, S.; Beyerle, G.; Rothacher, M. (2005): Global thermal tropopause parameters derived from GPS radio occultations. IAMAS 2005 (Beijing, China, 2005).
| EDOC: 7914 |

Schmidt, T.; Wickert, J.; Heise, S.; Beyerle, G.; Rothacher, M. (2005): Global thermal tropopause parameters derived from GPS radio occultations. IAMAS 2005 (Beijing, China, 2005).
| EDOC: 7916 |

Vespe, F.; Wickert, J.; Heise, S.; Persia, T.; Pacione, R. (2005): Validation of the BPV (n,á) method for the retrieval of Atmosphere Refractivity and Water Vapour Content by Radio Occultation Data. 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).
| EDOC: 7219 |

Wickert, J.; Beyerle, G.; Healy, S. B.; Heise, S.; Jakowski, N.; König, R.; Rothacher, M.; Schmidt, T. (2005): GPS based atmospheric sounding with CHAMP: Highlights and recent results of the scientific data analysis. 28th General Assembly of International Union of Radio Science (URSI) (New Dehli, India 2005).
| EDOC: 8321 |

Wickert, J.; Beyerle, G.; Healy, S. B.; Heise, S.; König, R.; Michalak, G.; Rothacher, M.; Schmidt, T. (2005): GPS based atmospheric sounding with CHAMP: Results achieved after four years. EUMETSAT Meteorological Satellite Conference (Dubrovnik, Croatia 2005).
| EDOC: 7923 |

Wickert, J.; Beyerle, G.; Schmidt, T.; Grunwaldt, L.; König, R.; Michalak, G.; Reigber, C. (2005): GPS radio occultation with CHAMP and GRACE: A first look at a new and promising satellite configuration for global atmospheric sounding. 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).
| EDOC: 7216 |

Wickert, J.; Beyerle, G.; Schmidt, T.; Heise, S.; Jakowski, N.; König, R.; Rothacher, M.; Healy, S. B.; Offiler, D.; Wergen, W. (2005): GPS based atmospheric sounding with CHAMP: Recent GFZ activities and results. Second GPS RO Data Users Workshop (Lansdowne, Virginia 2005).
| EDOC: 7925 |

Wickert, J.; Gendt, G.; Jakowski, N.; Beyerle, G.; Heise, S.; Jacobi, C.; Reigber, C.; Schmidt, T. (2005): Ground and space based GPS atmospheric sounding: Introduction and recent results. The International Colloquium on an International Network for Tropical Atmosphere Radar - INTAR (Tirupati, India 2005).
| EDOC: 6239 | Abstract |

Wickert, J.; Schmidt, T.; Beyerle, G.; Heise, S.; Flechtner, F.; Galas, R.; Grunwaldt, L.; König, R.; Massmann, F.-H.; Meehan, T.; Reigber, C.; Rothacher, M.; Tapley, B. (2005): GPS radio occultation with CHAMP and GRACE: Preliminary results. GRACE Science Team Meeting ( Austin, Texas 2005).
| EDOC: 8325 |

Wickert, J.; Schmidt, T.; Beyerle, G.; Heise, S.; Schöllhammer, K.; Reigber, C. (2005): GPS radio occultation with CHAMP: Comparison of vertical refractivity and temperature profiles with radiosonde data. 2nd General Assembly European Geosciences Union (Vienna, Austria 2005).
| EDOC: 7213 |

2004

Beyerle, G.; König-Langlo, G.; Wickert, J.; Schmidt, T.; Heise, S.; Kaschenz, J. (2004): An analysis of the negative refractivity bias detected in GPS radio occultation data: Results from simulation studies, aerological soundings and CHAMP observations. Joint CHAMP/GRACE Science Meeting (Potsdam 2004).
| EDOC: 6278 | Abstract |

Borsche, M.; Gobiet, A.; Steiner, A. K.; Foelsche, U.; Kirchengast, G.; Schmidt, T.; Wickert, J. (2004): Operationally Retrieving Radio Occultation Based Climatologies within the CHAMPCLIM Project. 2nd International Workshop on Occultations for Probing Atmosphere and Climate (OPAC-2) (Graz 2004).
| EDOC: 6351 | Abstract |

Engeln, A. von; Teixeira, J.; Wickert, J.; Buehler, S. (2004): Detecting the Planetary Boundary Layer using CHAMP Data. 2nd International Workshop on Occultations for Probing Atmosphere and Climate (OPAC-2) (Graz 2004).
| EDOC: 6350 |

Gobiet, A.; Foelsche, U.; Steiner, A. K.; Borsche, M.; Schmidt, T.; Löscher, A.; Kirchengast, G.; Wickert, J. (2004): Radio Occultation Based Climatologies: Status of the CHAMPCLIM Project and First Results from the Summer Season 2003. Joint CHAMP/GRACE Science Meeting (Potsdam 2004).
| EDOC: 6276 |

Heise, S.; Wickert, J.; Beyerle, G.; Schmidt, T.; Kaschenz, J.; Healy, S. B.; Reigber, C. (2004): Derivation of Vertical Water Vapor Profiles from GPS Radio Occultation with CHAMP. Joint CHAMP/GRACE Science Meeting (Potsdam 2004).
| EDOC: 6360 | Abstract |

Heise, S.; Wickert, J.; Beyerle, G.; Schmidt, T.; Kaschenz, J.; Healy, S. B.; v. Engeln, A.; Reigber, C. (2004): GPS radio occultation with CHAMP: Operational derivation of vertical water vapor profiles. 1st General Assembly European Geosciences Union (Nice, France 2004).
| EDOC: 6361 | Abstract |

Heise, S.; Wickert, J.; Schmidt, T.; Beyerle, G.; Reigber, Ch. (2004): Atomospheric sounding by GPS measurements aboard CHAMP. International Beacon Satellite Symposium (Trieste, Italy 2004).
| EDOC: 7181 |

Jacobi, C.; Tetzlaff, G.; Venkat Ratnam, M.; Wickert, J.; Schmidt, T. (2004): Global Features of the Tropopause as seen in CHAMP GPS Radio Occultation Measurements. 35th COSPAR Scientific Assembly (Paris 2004).
| EDOC: 6274 | Abstract |

Notarpietro, R.; Perona, G.; Garbella, M.; Wickert, J. (2004): The GPS limb sounding technique for the remote sensing of atmospheric refractivity profile and the new Italian Space Agency GPS ROSA receiver. 3rd Workshop AIT on microwave remote sensing: research activities and applications (Napoli, Italy 2004).
| EDOC: 6343 |

Pavelyev, A. G.; Wickert, J.; Liou, Y. A.; Gubenko, V. N. (2004): Connections of the parameters of gravity waves with amplitude and phase variations of the CHAMP radio occultation signal. Joint CHAMP/GRACE Science Meeting (Potsdam 2004).
| EDOC: 6355 |

Pavelyev, A. G.; Wickert, J.; Liou, Y. A.; Jacobi, C.; Gubenko, V. N.; Pavelyev, A. A. (2004): Analysis of Atmospheric and Ionospheric Structures using the CHAMP Radio Occultation Database: A Review. 2nd International Workshop on Occultations for Probing Atmosphere and Climate (OPAC-2) (Graz 2004).
| EDOC: 6357 |

Pavelyev, A. G.; Wickert, J.; Reigber, C.; Schmidt, T.; Liou, Y. A.; Igarashi, K.; Pavelyev, D. A. (2004): Similarity of the amplitude variations in CHAMP radio occultation signal and Earth-based observations of the radio waves scintillations. Joint CHAMP/GRACE Science Meeting (Potsdam 2004).
| EDOC: 6354 |

Pavelyev, A. G.; Wickert, J.; Reigber, C.; Schmidt, T.; Liou, Y. A.; Matyugov, S. S.; Pavelyev, A. A. (2004): Evidence for connection between the amplitude variations in the CHAMP radio occultation signal and DST index. Joint CHAMP/GRACE Science Meeting (Potsdam 2004).
| EDOC: 6356 |

Petitta, M.; Wickert, J.; Bizzarri, B.; Bordi, I.; Sutera, A. (2004): Analysis of large scale and mesoscale variability of midlatitude tropopause using GPS radio occultation data and NCEP reanalysis. 2nd International Workshop on Occultations for Probing Atmosphere and Climate (OPAC-2) (Graz 2004).
| EDOC: 6352 |

Reigber, Ch.; Schwintzer, P.; Lühr, H.; Wickert, J. (2004): CHAMP: Mission Status & Development. Joint CHAMP/GRACE Science Meeting (Potsdam 2004).
| EDOC: 6285 |

Schmidt, T.; Wickert, J.; Beyerle, G.; Heise, S.; Kaschenz, J.; Reigber, C. (2004): GPS radio occultation with CHAMP: global monitoring of climate change parameters. 35th COSPAR Scientific Assembly (Paris 2004).
| EDOC: 7176 | Abstract |

Schmidt, T.; Wickert, J.; Beyerle, G.; Reigber, C. (2004): GPS radio occultation with CHAMP: An application for climate research. Joint CHAMP/GRACE Science Meeting (Potsdam 2004).
| EDOC: 6287 | Abstract |

Steiner, A.K.; Foelsche, U.; Kirchengast, G.; Gobiet, A.; Löscher, A.; Wickert, J.; Schmidt, T. (2004): CHAMPCLIM: Climatologies Based on Radio Occultation Observations. CLIVAR 2004 : First International CLIVAR Science Conference (Baltimore, Maryland USA 2004).
| EDOC: 6345 | Abstract |

Stendel, M.; Elegered, G.; Sausen, R.; Bengtsson, L.; Wickert, J.; Hagemann, S. G.; Kirchengast, G.; Tefele, N. (2004): Monitoring Climate Variability and Change by Means of GNSS Data. 2nd International Workshop on Occultations for Probing Atmosphere and Climate (OPAC-2) (Graz 2004).
| EDOC: 6344 |

Venkat Ratnam, M.; Jacobi, C.; Tetzlaff, G.; Wickert, J.; Schmidt, T. (2004): Global Maps of Stratospheric Gravity Wave Activity from CHAMP/GPS Satellite Radio-Occultation Measurements. 35th COSPAR Scientific Assembly (Paris 2004).
| EDOC: 6279 | Abstract |

Vespe, F.; Wickert, J. (2004): Application and evaluation of new refractivity and humidity retrieval techniques on the improved refractivity profiles from CHAMP GPS radio occultations. 1st General Assembly European Geosciences Union (Nice, France 2004).
| EDOC: 6347 | Abstract |

Wang, D.Y.; Wickert, J. (2004): Cross-Validation of MIPAS/ENVISAT and GPS-RO/CHAMP Temperatures. Joint CHAMP/GRACE Science Meeting (Potsdam 2004).
| EDOC: 6348 | Abstract |

Wickert, J. (2004): GNSS Radio occultation: Introduction and selected results. 2nd International Workshop on Occultations for Probing Atmosphere and Climate (OPAC-2) (Graz 2004).
| EDOC: 6291 |

Wickert, J. (2004): GPS RO missions: Overview and Results from CHAMP, GPS/MET and SAC-C. Summer Colloquium on Atmospheric Remote Sensing Using the Global Positioning System (Boulder, Colorado 2004).
| EDOC: 6295 |

Wickert, J.; Beyerle, G.; Schmidt, T.; König, R.; Reigber, C.; Marquardt, C. (2004): Highlights of CHAMP atmospheric occultation results. OIST 4 proceedings, 4th Oersted International Science Team Conference (Copenhagen, Denmark 2002), 235-240.
| EDOC: 5394 |

Wickert, J.; Gendt, G.; Reigber, C.; Beyerle, G.; Dick, G.; Heise, S.; Jacobi, C.; Ramatschi, M.; Rhodin, A.; Schmidt, T.; Tomassini, M.; Wergen, W. (2004): Boden- und satellitengestützte GPS-Meteorologie in Deutschland: Ergebnisse und Ausblick. DACH Meteorologentagung (Karlsruhe 2004).
| EDOC: 6241 |

Wickert, J.; Schmidt, T.; Beyerle, G.; Jakowski, N.; Heise, S.; König, R.; Reigber, C. (2004): Atmospheric sounding using GPS measurements aboard CHAMP - Results achieved and future prospects. 3. COSMIC/ROCSAT Science Meeting (Taoyuan/Taiwan 2004).
| EDOC: 6240 |

Wickert, J.; Schmidt, T.; Beyerle, G.; Jakowski, N.; Heise, S.; König, R.; Reigber, Ch. (2004): Atmospheric sounding using GPS measurements aboard CHAMP and GRACE - Results achieved. 2nd International Workshop on Occultations for Probing Atmosphere and Climate (OPAC-2) (Graz 2004).
| EDOC: 7180 |

Wickert, J.; Schmidt, T.; Beyerle, G.; Jakowski, N.; Heise, S.; Reigber, C.; König, R. (2004): GPS based atmosphere sounding with CHAMP: Overview, results and future prospects. 7th Latin-American Conference on Space Geophysics (Atibaia, São Paulo, Brazil).
| EDOC: 6244 |

Wickert, J.; Schmidt, T.; Beyerle, G.; Reigber, C.; Grunwaldt, L.; König, R.; Galas, R.; Heise, S.; Ramatschi, M. (2004): Three years of space based atmosphere sounding with CHAMP: Results, highlights and future prospects. Joint CHAMP/GRACE Science Meeting (Potsdam 2004).
| EDOC: 6243 |

Wickert, J.; Schmidt, T.; Jakowski, N.; de la Torre, A.; Pavelyev, A.; Jacobi, C.; Beyerle, G.; Heise, S.; Reigber, C. (2004): GPS-basierte Fernerkundung der Atmosphäre mit CHAMP: Anwendungen zur Erkundung der mittleren Atmosphäre und Ionosphäre. DACH Meteorologentagung (Karlsruhe 2004).
| EDOC: 7179 |

2003

Beyerle, G.; Gorbunov, M. E.; Ao, C. O.; Wickert, J.; Schmidt, T.; Reigber, C. (2003): Atmospheric sounding by GPS radio occultation: Simulation Studies and comparisons with observations. EGS-AGU-EUG Joint Assembly (Nice, France 2003).
| EDOC: 6366 | Abstract |

Gobiet, A.; Kirchengast, G.; Retscher, A.; Wickert, J. (2003): Upper Tropospheric and Stratospheric Radio Occultation Retrieval. AGU 2003 Fall Meeting (San Francisco 2003).
| EDOC: 6275 |

König, R.; Reigber, C.; Michalak, G.; Schmidt, T.; Wickert, J. (2003): Ultra-rapid Orbits for CHAMP Atmosphere Profiling. EGS-AGU-EUG Joint Assembly (Nice 2003).
| EDOC: 3936 |

Pavelyev, A. G.; Wickert, J.; Liou, Y. A. (2003): Diffractive Vector and Scalar Integrals for Bistatic Radio-holographic Remote Sensing Using GPS Signals. Proceedings, Symposium on 'Atmospheric Remote Sensing using Satellite Navigation Systems', URSI Joint Working Group FG (Matera, Italy 2003), 85-91.
| EDOC: 6236 |

Peng, G.; Hecht, J. H.; Walterscheid, R. L.; Hajj, G. A.; Wickert, J. (2003): Observation of the Antarctic Sudden Stratospheric Warming Of September 2002 Using GPS Radio Occultation Technique. AGU 2003 Fall Meeting (San Francisco 2003).
| EDOC: 6282 |

Peng, G.; Hecht, J. H.; Walterscheid, R. L.; Wickert, J. (2003): Observation of Polar Sudden Stratospheric Warming Events using GPS Radio Occultation Technique. 23rd General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Sapporo, Japan 2003).
| EDOC: 6280 |

Peng, G.; Hecht, J. H.; Walterscheid, R. L.; Wickert, J. (2003): Observation of Polar Sudden Stratospheric Warming Events using GPS Radio Occultation Technique. 2nd CHAMP Science Meeting (Potsdam 2003).
| EDOC: 6281 |

Reigber, C.; Galas, R.; Köhler, W.; Forberg, M.; Ramatschi, M.; Wickert, J. (2003): GFZ HR/LL GPS Ground Station Networks and their Use. AGU 2003 Fall Meeting (San Francisco 2003).
| EDOC: 6283 |

Reigber, C.; Gendt, G.; Wickert, J.; Beyerle, G.; Dick, G.; Galas, R.; König, R.; Ramatschi, M.; Schmidt, T.; Tomassini, M. (2003): Demonstration of GPS atmospheric monitoring from ground and space within the german GASP project. 23rd General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Sapporo, Japan 2003).
| EDOC: 6284 |

Schmidt, T.; Wickert, J.; Beyerle, G.; König, R.; Reigber, C. (2003): GPS Radio Occultation with CHAMP: Applications for Climate Research. EGS-AGU-EUG Joint Assembly (Nice 2003).
| EDOC: 3939 |

Wickert, J.; Ao, C. O.; Schreiner, W. B.; Schmidt, T.; Beyerle, G.; König, R.; Reigber, C.; Hajj, G. A.; Iijima, B. A.; Hunt, D.; Sokolovskiy, S.; Rockern, C. (2003): GPS radio occultation with CHAMP: First comparisons of occultation, Data analysis results from GFZ, JPL and UCAR. EGS-AGU-EUG Joint Assembly (Nice 2003).
| EDOC: 3940 |

Wickert, J.; Beyerle, G.; Schmidt, T.; König, R.; Reigber, C. (2003): GPS Radio occultation with CHAMP: Operational data analysis and validation of vertical atmospheric profiles. Proceedings, SAF Training Workshop (Darmstadt 2003), 116-125.
| EDOC: 5404 |

Wickert, J.; Gendt, G.; Reigber, C. (2003): GPS Radiooccultation with CHAMP and possible synergies between ground and space based Meteorology. COST 716, Final Workshop (de Bilt 2003).
| EDOC: 6271 |

Wickert, J.; Healy, S. B.; Kaschenz, J.; Beyerle, G.; Schmidt, T.; Reigber, C.; Marquardt, C. (2003): GPS radio occultation with CHAMP: Comparative retrieval and validation of water vapor profiles. EGS-AGU-EUG Joint Assembly (Nice 2003).
| EDOC: 6248 |

Wickert, J.; Schmidt, T.; Beyerle, G.; König, R.; Reigber, C. (2003): GPS radio occultation with CHAMP: Status, results and future prospects of the operational data analysis. URSI F/G Special Symposium on Atmospheric Remote Sensing using Satellite Navigation Systems (Matera, Italy 2003).
| EDOC: 6272 | Abstract |

2002

Beyerle, G.; Gorbunov, M. E.; Marquardt, C.; Reigber, C.; Schmidt, T.; Wickert, J. (2002): Inverting GPS Radio Occultation Data using the Canonical Transform Method: Results from Simulation Studies and CHAMP Observations. 27th General Assembly of the European Geophysical Society (EGS) (Nice 2002).
| EDOC: 6364 | Abstract |

Beyerle, G.; Gorbunov, M. E.; Reigber, C.; Schmidt, T.; Wickert, J. (2002): Detection and analysis of GPS radio occultation signals under multipath conditions: Results from simulation studies. 1st International Workshop on Occultations for Probing Atmosphere and Climate (Graz 2002).
| EDOC: 6365 |

Beyerle, G.; Hocke, K.; Pavelyev, A.G.; Marquardt, C.; Reigber, C.; Schmidt, T.; Wickert, J. (2002): GPS Signal Surface Reflections and Signal Propagation in the Troposphere: First Results from CHAMP Observations. 27th General Assembly of the European Geophysical Society (EGS) (Nice 2002).
| EDOC: 6363 | Abstract |

Ge, S. J.; Shum, C. K.; Wickert, J. (2002): Contributions of GPS occultations to Antarctica ice sheet mass balance studies. 1st International Workshop on Occultations for Probing Atmosphere and Climate (Graz 2002).
| EDOC: 6277 | Abstract |

Marquardt, C.; Beyerle, G.; Healy, S. B.; Schmidt, T.; Wickert, J.; Neumayer, H.; König, R.; Reigber, C. (2002): Variational retrieval of CHAMP radio occultation data. 27th General Assembly European Geophysical Society (EGS) (Nice 2002).
| EDOC: 6336 | Abstract |

Marquardt, C.; Schöllhammer, K.; Schrödter, M.; Tomassini, M.; Beyerle, G.; Schmidt, T.; Wickert, J.; König, R.; Grunwaldt, L.; Reigber, C. (2002): Validation of 1 year of CHAMP radio occultation data. 27th General Assembly European Geophysical Society (EGS) (Nice 2002).
| EDOC: 6335 | Abstract |

Marquardt, C.; Schöllhammer, K.; Wickert, J.; Schmidt, T.; Beyerle, G.; Galas, R.; König, R.; Köhler, W.; Reigber, C. (2002): Tropopause characteristics obtained from CHAMP radio occultation soundings. 27th General Assembly European Geophysical Society (EGS) (Nice 2002).
| EDOC: 6334 |

Peng, G.; Hecht, J. H.; Wessel, J. E.; Farley, R. W.; Wickert, J. (2002): Comparison of Rayleigh Lidar and GPS Radio Occultation Temperature Profiles between 30-60 Kilometers in Altitude. AGU 2002 Fall Meeting (San Francisco 2002).
| EDOC: 6247 |

Reigber, C.; König, R.; Schmidt, T.; Wickert, J. (2002): Ultra rapid orbits for CHAMP atmosphere sounding. 27th General Assembly of the European Geophysical Society (EGS) (Nice 2002).
| EDOC: 6353 | Abstract |

Schmidt, T.; Marquardt, C.; Wickert, J.; Beyerle, G.; Reigber, C.; Galas, R.; König, R. (2002): GPS radio occultation with CHAMP: An innovative remote sensing method of the atmosphere. 34th COSPAR Scientific Assembly (Houston 2002).
| EDOC: 6288 | Abstract |

Schmidt, T.; Wickert, J.; Marquardt, C.; Beyerle, G.; Reigber, C.; Wehrenpfennig, A. (2002): The near real time data processing system for GPS radio occultation data from CHAMP at GFZ Potsdam. 27th General Assembly of the European Geophysical Society (EGS) (Nice 2002).
| EDOC: 6359 | Abstract |

Wickert, J.; Beyerle, G.; Grunwaldt, L.; König, R.; Meehan, T. K.; Reigber, C.; Schmidt, T. (2002): The CHAMP GPS Occultation experiment: Current Status and Future Prospects. 1st International Workshop on Occultations for Probing Atmosphere and Climate (Graz 2002).
| EDOC: 6302 | Abstract |

Wickert, J.; Beyerle, G.; Hajj, G. A.; Kirchengast, G.; König, R.; Schmidt, T.; Marquardt, C.; Reigber, C. (2002): Space-based single differencing: An alternative approach for CHAMP GPS occultation data processing. 27th General Assembly European Geophysical Society (EGS) (Nice France 2002).
| EDOC: 6327 | Abstract |

Wickert, J.; Beyerle, G.; Hajj, G. A.; Kirchengast, G.; Schmidt, T.; Marquardt, C.; König, R. (2002): Space-based single differencing: An alternative approach for CHAMP occultation processing. First Champ Science Meeting (Potsdam 2002).
| EDOC: 6301 | Abstract |

Wickert, J.; Beyerle, G.; Marquardt, C.; Schmidt, T.; Reigber, C.; König, R.; Grunwaldt, L. (2002): GPS Radio occultation with CHAMP: The first year of the experiment. 27th General Assembly European Geophysical Society (EGS) (Nice France 2002).
| EDOC: 6326 | Abstract |

Wickert, J.; Galas, R.; Schmidt, T.; Reigber, C.; Förste, C.; Ramatschi, M. (2002): GPS Ground station data for the CHAMP occultation experiment. 27th General Assembly European Geophysical Society (EGS) (Nice France 2002).
| EDOC: 6325 | Abstract |

Wickert, J.; Reigber, C.; Beyerle, G.; Schmidt, T.; Jakowski, N.; Marquardt, C. (2002): GPS Radiookkultationen mit CHAMP - Innovative Fernerkundung der Erdatmosphäre. Geodätische Woche 2002 (Frankfurt/Main 2002).
| EDOC: 6270 | Abstract |

Wickert, J.; Schmidt, T.; Förste, C. (2002): GPS Ground station data for CHAMP occultations. First Champ Science Meeting (Potsdam 2002).
| EDOC: 6300 | Abstract |

2001

Beyerle, G.; Wickert, J.; Schmidt, T.; Marquardt, C.; Reigber, C. (2001): Observations of temperature and water vapour profiles by GPS radio occultation: activities at GeoForschungsZentrum Potsdam. International Workshop on Wind and Temperature Measurement by Radio and Optical Remote Sensing & The 3rd US/Japan Meeting on Mesopause Gravity Waves and Sprite Studies (Kyoto, Japan 2001).
| EDOC: 6362 |

Igarashi, K.; Armand, N. A.; Pavelyev, A. G.; Reigber, C.; Wickert, J.; Hocke, K.; Beyerle, G.; Matyugov, S. S.; Yakovlev, O. I. (2001): Application of small satellites for high precision measuring effects of radio waver propagation. 3rd IAA Symposium on Small Satellites for Earth Observation (Berlin 2001), 43-48.
| EDOC: 2341 | Abstract |

Marquardt, C.; Beyerle, G.; Wickert, J.; Schmidt, T.; Reigber, C. (2001): Water vapour measurements with GPS radio occultation: First Results from CHAMP. DACH-Meteorologen-Tagung (Vienna, Austria 2001).
| EDOC: 6340 |

Marquardt, C.; Schmidt, T.; Wickert, J.; Reigber, C. (2001): Remote sensing of tropospheric water vapour with GPS radio occultation limb sounding. 26th General Assembly of the European Geophysical Society (EGS) ( Nice 2001).
| EDOC: 6339 |

Marquardt, C.; Wickert, J.; Beyerle, G.; Schmidt, T.; Reigber, C. (2001): GPS based limb sounding in the stratosphere: First results from CHAMP (germ). DACH-Meteorologen-Tagung (Vienna, Austria 2001).
| EDOC: 6337 |

Marquardt, C.; Wickert, J.; Schmidt, T.; König, R.; Reigber, C. (2001): Gravity Wave Parameters from CHAMP radio occultation measurements. IAMAS Scientific Assembly (Innsbruck, Austria 2001).
| EDOC: 6338 |

Reigber, C.; Gendt, G.; Marquardt, C.; Dick, G.; Wickert, J. (2001): GASP -. APSG Meeting.
| EDOC: 2350 | Abstract |

Reigber, C.; Gendt, G.; Marquardt, C.; Dick, G.; Wickert, J. (2001): GASP – 'GPS Atmospheric Sounding Project' in Germany. Asian Pacific Space Geodynamic Project Meeting (Shanghai 2001).
| EDOC: 6286 | Abstract |

Schmidt, T.; Wickert, J.; Marquardt, C.; Beyerle, G.; Reigber, C. (2001): Remote Sounding of the atmosphere by using GPS occultation technique with CHAMP. IAMAS Scientific Assembly (Innsbruck, Austria 2001).
| EDOC: 6358 |

Shum, C. K.; Brzezinska, D.; Ge, S. J.; Hazelton, B.; Yi, Y.; Zhao, C.; Bevis, M.; Hocke, K.; Wickert, J.; Jeffress, G.; Martin, D.; Szabados, M. (2001): The use of GPS for measuring water vapor and sea level. Fifth Symposium on Integrated Observing Systems (Albuquerque, New Mexico 2001).
| EDOC: 6289 | Abstract |

Wickert, J.; Beyerle, G.; Galas, R.; Grunwaldt, L.; König, R.; Marquardt, C.; Schmidt, T.; Reigber, C. (2001): GPS Radio Occultation with CHAMP. IGS LEO Pilot Project Meeting (Potsdam 2001).
| EDOC: 6330 |

Wickert, J.; Reigber, C.; Beyerle, G.; König, R.; Marquardt, C.; Schmidt, T.; Meehan, T.; Grunwaldt, L.; Galas, R. (2001): Initial Results of CHAMP Radio Occultation Experiment. AGU Spring Meeting, A31C-08.
| EDOC: 2344 | Abstract |

2000

Igarashi, K.; Pavelyev, A. G.; Hocke, K.; Pavelyev, D. A.; Wickert, J. (2000): Radio Holographic Method for Observing Wave structures in the upper Atmosphere using Radio Occultation data. COSPAR.
| EDOC: 2340 |

Igarashi, K.; Pavelyev, A. G.; Wickert, J.; Hocke, K.; Pavelyev, D.; Kato, H. (2000): Application of Radio Holographic method to precision measurements of E- and D-Layer Electron Density Altitude Profiles and Possibility of Estimating wind velocity in the upper Atmosphere from Radio Occultation data. The First S-Ramp Conference (Sapporo, Japan 2000).
| EDOC: 6273 |

Marquardt, C.; Labitzke, K.; Reigber, C.; Schmidt, T.; Wickert, J. (2000): Stratospheric temperatures by GPS radio limb sounding. 25th General Assembly of the European Geophysical Society (EGS) (Nice, France 2000).
| EDOC: 6341 |

Marquardt, C.; Wickert, J.; Beyerle, G.; Reigber, C.; Schmidt, T. (2000): GPS based Atmospheric Sounding with Low Earth Orbiters. 2nd SPARC General Assembly, Stratospheric Processes and their Role in Climate.
| EDOC: 2346 |

Reigber, C.; Wickert, J.; Beyerle, G.; Hocke, K.; Marquardt, C.; König, R.; Neumayer, K.-H.; Schmidt, T. (2000): GPS Radio Occultation with CHAMP - Algorithms and Data Processing. 2nd SPARC General Assembly, Stratospheric Processes and their Role in Climate.
| EDOC: 2347 |

Schmidt, T.; Wehrenpfennig, A.; Wickert, J.; Reigber, C. (2000): Das operationelle Prozessierungssystem für die Atmosphärensondierung mit CHAMP. Geodätische Woche 2000 (Potsdam 2000).
| EDOC: 6346 |

Wickert, J. (2000): Atmospheric Profiling with CHAMP. NOAA/NESDIS Workshop on GPS Radio Occultation (Washington 2000).
| EDOC: 6332 |

Wickert, J. (2000): Atmospheric Profiling with CHAMP. ESA/ESTEC Workshop Radio Occultation (Noordwijk 2000).
| EDOC: 6331 |

Wickert, J. (2000): Zum Einfluss der Ionosphäre auf GPS-Radiookkultationsmessungen. Proceedings, 1. Nationaler Workshop zum Weltraumwetter (Neustrelitz, 2000), 69-74.
| EDOC: 2339 | Abstract |

Wickert, J.; Galas, R.; Beyerle, G.; Schmidt, T. (2000): Aspekte der Nutzung von GPS Bodenmessungen für das CHAMP Okkultationsexperiment. Geodätische Woche 2000 (Potsdam 2000).
| EDOC: 6269 |

Wickert, J.; Galas, R.; König, R.; Reigber, C.; Beyerle, G. (2000): GPS ground station data for CHAMP radio occultation measurements. IGS Network Workshop (Soria Moria, Oslo, Norway 2000).
| EDOC: 6333 |

1999

Marquardt, C.; Reigber, C.; Jakowski, N.; Wehrenpfennig, A.; Wickert, J. (1999): The CHAMP Mission – Atmospheric profiling with GPS. 4th International Conference on Modelling of Global Climate Change and Variability (Hamburg 1999).
| EDOC: 6342 |

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Report

2008

Pavelyev, A. G.; Wickert, J.; Schmidt, T.; Gubenko, V. N.; Matyugov, S. S.; Pavelyev, A. A. (2008): Innovative technique for global control of layered and wave structures in the atmosphere and ionosphere bye use of the CHAMP and FORMOSAT-3/COSMIC GPS radio occultation data base. Scientific Technical Report ; 08/04, GeoForschungsZentrum Potsdam, 97.
| EDOC: 11767 | 10.2312/GFZ.b103-08040 | ebooks.gfz-potsdam.de/pub... |

2005

Reigber, C.; Lühr, H.; Wickert, J.; Förste, C.; Grafarend, E.; Reubelt, T.; Jakowski, N.; Wilken, V. (2005): Datenbereitstellung und Datennutzung der CHAMP-Mission (DACH). Final Report, GFZ Potsdam, 1-54.
| EDOC: 7940 |

2004

Pavelyev, A. G.; Wickert, J.; Schmidt, T.; Gubenko, V. N.; Matyugov, S. S.; Pavelyev, A. A. (2004): Radio holographic methods for atmospheric, ionospheric and stratospheric waves. Scientific Technical Report ; STR 04/18, GeoForschungsZentrum Potsdam, 94.
| EDOC: 6258 | urn:nbn:de:kobv:b103-04188 | ebooks.gfz-potsdam.de/pub... |

Reigber, C.; Gendt, G.; Wickert, J. (2004): GPS Atmosphären-Sondierungs-Projekt (GASP) : ein innovativer Ansatz zur Bestimmung von Atmosphärenparametern ; Abschlussbericht ; HGF-Strategiefonds-Projekt GASP - FKZ 01SF9922 des AWI, DLR, GFZ und GKSS. Scientific Technical Report STR 04/02, GeoForschungsZentrum Potsdam, 1-52.
| EDOC: 5437 | Abstract | urn:nbn:de:kobv:b103-04024 | ebooks.gfz-potsdam.de/pub... |

Wickert, J. (2004): Comparison of vertical refractivity and temperature profiles from CHAMP with radiosonde measurements. Scientific Technical Report ; STR 04/19, GeoForschungsZentrum Potsdam, 35.
| EDOC: 6261 | urn:nbn:de:kobv:b103-04193 | ebooks.gfz-potsdam.de/pub... |

2003

Ao, C. O.; Schreiner, W. B.; Wickert, J. (2003): First Report on the CHAMP Radio Occultation Intercomparison Study. JPL Publication 03-016.
| EDOC: 6238 |

Reigber, C.; Beyerle, G.; Grunwaldt, L.; König, R.; Schmidt, T.; Wickert, J. (2003): The Radio Occultation Experiment Aboard the German Satellite CHAMP.
| EDOC: 3994 |

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Thesis/Habil

2002

Wickert, J. (2002): Das CHAMP-Radiookkultationsexperiment : Algorithmen, Prozessierungssystem und erste Ergebnisse. Scientific Technical Report ; 02/07, Geoforschungszentrum, 145.
| EDOC: 3318 | urn:nbn:de:kobv:b103-020097 | ebooks.gfz-potsdam.de/pub... |

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Miscellaneous

2011

Wickert, J. (2011): Atmosphärensondierung mit GPS.
| EDOC: 17371 |

Wickert, J. (2011): Earth Observation with Navigation Satellites at GFZ: Results, Outlook and Vision.
| EDOC: 17358 |

Wickert, J. (2011): Erdbeobachtung mit Navigationssatelliten am GFZ : Ergebnisse, Ausblick und Vision.
| EDOC: 17359 |

Wickert, J. (2011): GPS/Galileo Earth Observation at GFZ: Recent activities and results.
| EDOC: 17375 |

Wickert, J. (2011): GPS/Galileo Earth Observation at GFZ: Recent activities and results.
| EDOC: 17378 |

Wickert, J. (2011): Prospects of GPS/Galileo Earth Observation.
| EDOC: 17360 |

2010

Bender, M.; Dick, G.; Heise, S.; Zus, F.; Ramatschi, M.; Wickert, J.; Raabe, A. (2010): GPS-Wasserdampftomografie.
| EDOC: 15029 |

Heise, S.; Wickert, J.; Schmidt, T.; Beyerle, G.; Arras, C.; Bender, M.; Gendt, G.; Dick, G. (2010): GPS-based atmospheric sounding.
| EDOC: 16407 |

Wickert, J. (2010): CHAMP: Wegbereiter der Atmosphärensondierung mit GPS.
| EDOC: 16043 |

Wickert, J. (2010): GNSS atmosphere sounding at GFZ: Recent activities and results.
| EDOC: 15665 |

Wickert, J. (2010): GNSS-Atmosphärensondierung am GFZ: Aktuelle Arbeiten und Ergebnisse.
| EDOC: 16499 |

Wickert, J. (2010): GPS atmosphere sounding at GFZ.
| EDOC: 15663 |

Wickert, J. (2010): GPS/Galileo Earth Observation at GFZ: Recent activities and results.
| EDOC: 16500 |

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