Helmholtz Centre Potsdam
GFZ German Research Centre for Geosciences
Abstract (EDOC: 9449)
A Multiplicative Algebraic Reconstruction Technique (MART) assimilation process of calibrated ground-based and occultation GPS TEC data into combined IRI/GCPM model data is described. The resulting electron density fields are assessed with in situ records. An improvement of the electron density estimations by IRI/GCPM of 27.25% at northern high latitudes is obtained through the assimilation of GPS data. A specification of NmF2 and hmF2 within a mean bias of only 8.5 × 10^10 m^−3 and −6.1 km, respectively, is achieved in comparison with soundings of seven European ionosondes.
(2006): A GPS based three-dimensional ionospheric imaging tool: process and assessment. Advances in Space Research, 38, 11, 2313-2317.