WET TROPOSPHERIC CORRECTIONS OVER INLAND WATER – GETTING READY FOR SENTINEL-3

摘要

This study addresses the problems associated to the retrieval of the wet tropospheric correction (WTC) for Sentinel-3 over inland water regions.rnBased on the experience acquired with the development of algorithms to improve the WTC retrieval over the open and coastal ocean, applied to the main altimetric missions, techniques for the estimation of improved WTC for Sentinel-3 over inland waters are being developed at the University of Porto (U.Porto).rnThe potential of these techniques to generate continuous altimeter profiles over inland waters are illustrated with Envisat data over Lake Victoria (Africa). First results show that improved continuous WTC can be obtained, preserving the good MWR values, leading to a decrease in the water surface anomaly variance both with respect to the baseline MWR-derived WTC and ERA Interim model.