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Downward continuation of satellite gradiometry data

Juraj Janak(1), Karol Mikula(1) and Michal Sprlak(1)

(1) Slovak University of Technology, Radlinskeho 11, 81368 Bratislava, Slovakia


The purpose of this contribution is to estimate the accuracy of the downward continuation of satellite gradiometry data from the GOCE orbit to the surface of the Earth. Input and output values are generated from the Earth synthetic model. The numerical stabilisation by means of topographic reduction of input data, suggested by (Heck and Wild, 2005), is applied before the downward continuation itself. Iterative procedure is performed to solve the Poisson’s downward continuation. Comparison of downward continued data with data generated from synthetic model gives us an estimate of the accuracy of presented downward continuation procedure. Results are discussed and some conclusions are posed.


Workshop poster

Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry