• Gravity field and its temporal variations
• Evolution of polar ice sheets
• Past and present sea-level change
• Geophysical modelling of glacial-isostatic adjustment
• Ice-mass balance estimates from Gravity Recovery and Climate Experiment (GRACE)

• BMBF-research project MiKlip "Decadal Predictions" , project GeoClim "Geodetic Satellite Observations for Climate Model Validation"
• DFG-Priority Program SPP1257: "Mass transport and mass distribution in the Earth system": (AGIA) "Antarctic glacial-isostatic adjustment from GRACE and numerical modelling"
• Helmholtz Climate Initiative REKLIM (Regional climate change), Topic 2: "Sea level change and coastal protection" 
• Oct 2004–Jan 2009: Helmholtz-EOS PhD Program, Topic I: Ice and Ocean 

University and school education

• Nov 1996–Aug 2004: Ludwig-Maximilians University Munich, Technical University Munich; Major subject: Geophysics; Minor subject: Satellite geodesy; Degree: Diploma in Geophysics
• Sep 2000–Aug 2001: University of Toronto, School of Graduate Studies, Visiting student at the departments of physics and geology

• since Feb 2009: Research Scientist (Post-Doc) at Helmholtz Centre Potsdam, GFZ German Research Centre
• Nov 2004–Jan 2009: Helmholtz Centre Potsdam, Status: Research assistant (Ph.D.-student), Dissertation "Present-day ice-mass changes and glacial-isostatic adjustment in the polar regions from satellite gravimetry and geophysical modelling". Dissertation accomplished on 10 Feb 2009

• German Representative for the international Young Earth Scientist Network
• Helmholtz Earth Observing System (EOS) Ph.D. network
• Spokesmen of the Working Group of Young Geoscientists of the German Research Foundation
• European GRACE Science Team Co-Investigator

• Sasgen, I.; Konrad, H.; Ivins, E.R.; van den Broeke, M.R.; Bamber, J.L.; Martinec, Z.; Klemann, V.: Antarctic ice-mass balance 2002 to 2011: regional re-analysis of GRACE satellite gravimetry measurements with improved estimate of glacial-isostatic adjustment, The Cryosphere Discuss., 6, 3703-3732, doi:10.5194/tcd-6-3703-2012, 2012.
• Sasgen, I.; van de Broeke, M.R.; Bamber, J.; Rignot, E.; Sorensen, L.; Wouters, B.; Martinec, Z.; and Simonsen, S. B.: Timing and origin of recent regional ice-mass loss in Greenland. Earth and Planetary Science Letters, 333-334, 293-303 p., doi:10.1016/j.epsl.2012.03.033. (2012)
• Sasgen, I.; Klemann, V.; Martinec, Z.: Towards the inversion of GRACE gravity fields for present-day ice-mass changes and glacial-isostatic adjustment in North America and Greenland. Journal of Geodynamics, 59-50, 49-63 p., doi:10.1016/j.jog.2012.03.004. (2012)
• Sasgen, I.; Dobslaw, H.; Martinec, Z.; Thomas, M.:Satellite gravimetry observation of Antarctic snow accumulation related to ENSO. Earth and Planetary Science Letters, 299, 3-4, 352-358 p., doi:10.1016/j.epsl.2010.09.015. (2010)
• Sasgen, I.; Martinec, Z.; Fleming, K.: Wiener optimal filtering of GRACE data. Stud. Geophys. Geod., 50 (4), 499-508 p., doi:10.1007/s11200-006-0031-y, (2006)