TOWARDS USING SATELLITE ALTIMETRY FOR THE OBSERVATION OF COASTAL DYNAMICS

摘要

The objective of this study is to determine to what extent coastal processes can be observed with satellite altimetry. Therefore, we have used a new data processing approach developed in the context of the ALBICOCCA project (Altimeter-Based Investigations in Corsica, Capraia and Contiguous Area). This approach uses improved local modelling of environmental corrections (MOG2D solutions), new experimental editing criteria and an inversion method to derive the mean sea surface. It substantially increases the number of valid data in the coastal domain and their accuracy. So far, we have used this original approach to reprocess all the TOPEX/POSEIDON altimetric data in three experimental areas: the NW Mediterranean Sea, the Northern Indian Ocean and the region of the Humboldt current system. We present the validated results and show some analyses of the coastal signal contained in these datasets.