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Proceedings Paper

RA-2 ENVISAT ocean retracking: the Southampton Oceanography Centre retracker scheme
Author(s): Jesus Gomez-Enri; Christine P. Gommenginger; Peter G. Challenor; Meric A. Srokosz; Pilar Villares-Duran
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Paper Abstract

Present paper summarizes the capabilities of the ocean retracking model developed at the Southampton Oceanography Centre to retrieve geophysical parameters (mainly, significant wave height, backscatter power and range), using the RA-2 Envisat 18-Hz averaged waveforms. This model is based on the use of the Maximum Likelihood Estimation. One of the most important characteristics of the model is that non-linear parameters can be added, in order to derive more information from the ocean waveforms. First results show that the linear model is able to retrieve accurate geophysical parameters from RA2, but the use of the non-linear model has to be considered with care. This work is part of the RAIES project, for the exploitation of the Envisat radar altimeter individual echoes and S-band data for ocean, coastal zone, land and ice/sea-ice altimetry.

Paper Details

Date Published: 16 November 2004
PDF: 13 pages
Proc. SPIE 5569, Remote Sensing of the Ocean and Sea Ice 2004, (16 November 2004); doi: 10.1117/12.566602
Show Author Affiliations
Jesus Gomez-Enri, Southampton Oceanography Ctr. (United Kingdom)
Christine P. Gommenginger, Southampton Oceanography Ctr. (United Kingdom)
Peter G. Challenor, Southampton Oceanography Ctr. (United Kingdom)
Meric A. Srokosz, Southampton Oceanography Ctr. (United Kingdom)
Pilar Villares-Duran, Univ. de Cadiz (Spain)


Published in SPIE Proceedings Vol. 5569:
Remote Sensing of the Ocean and Sea Ice 2004
Charles R. Bostater; Rosalia Santoleri, Editor(s)

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