Publications

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.

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Stolle, C.; Schlüter, S.; Heise, S.; Jacobi, Ch.; Jakowski, N.; Raabe, A. (2006): A GPS based three-dimensional ionospheric imaging tool: process and assessment. Advances in Space Research, 38, 11, 2313-2317.