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SAR Altimetry Applications Over Water

Cristina Martin Puig(1), Marco Caparrini(1) and Giulio Ruffini(1)

(1) Starlab, Cami de l'Observatori s/n, 08035 - Barcelona, Spain

Abstract

The application of Synthetic Aperture Radar (SAR) techniques to classical radar altimetry offers a potential solution to significantly enhance Earth surface mapping. The main objective of the ESA project SAMOSA: "Development of SAR Altimetry Studies and Applications over Ocean, Coastal zones and Inland waters" is to better quantifying the improvement of SAR altimetry to conventional altimetry over water. This paper will provide up to date information on the progress of SAMOSA. In concrete, it will focus on the reduction of SAR mode to pulse limited altimeter data, and a theoretical modeling to characterize expected gain between high PRF reduced SAR mode data and low PRF classical Low-Resolution Mode (LRM) data. To this end, theoretical modeling using the Cramer-Rao bound will be applied and the results will be compared to previous theoretical estimates [Raney, R.K; 1998].

 

Workshop presentation

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