Title :
An original analysis of the sea state bias in radar altimetry
Author :
Amarouche, L. ; Chapron, B. ; Thouvenot, E.
Author_Institution :
CNES, Toulouse, France
Abstract :
This work deals with the analysis of the sea state bias (SSB) using a simulator that computes an altimeter return waveform from a deterministic sea surface. To simulate the SSB, the sea surface characteristics are modified in agreement with statistical and physical theories and observations. An hydrodynamic modulation is simulated according to the common observation that the average backscatter cross section is modulated along the wave profile. The skewness and the tilt modulation effects are simulated by using nonlinear sea surfaces generated by introducing wave-wave interactions between long waves
Keywords :
backscatter; oceanographic techniques; radar cross-sections; radar theory; remote sensing by radar; spaceborne radar; altimeter return waveform; average cross section; backscatter cross section; deterministic sea surface; hydrodynamic modulation; long waves; measurement technique; ocean wave; radar altimetry; radar remote sensing; radar scattering; sea level; sea state bias; simulation; skewness; spaceborne radar; surface characteristics; tilt modulation; wave profile; wave-wave interaction; Altimetry; Amplitude modulation; Backscatter; Computational modeling; Hydrodynamics; Radar cross section; Sea level; Sea surface; Surface waves; Telephony;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2000. Proceedings. IGARSS 2000. IEEE 2000 International
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-6359-0
DOI :
10.1109/IGARSS.2000.860474
