Title :
Depth and amplitude estimation of internal waves from SAR imagery
Author :
Jingsong, Yang ; Weigen, Huang ; Changbao, Zhou ; Mingkuang, Hsu ; Qingmei, Xiao
Author_Institution :
Lab of Ocean Dynamic Processes & Satellite Oceanogr., State Oceanic Adm., Hangzhou, China
Abstract :
Imagery from ERS-1 synthetic aperture radar (SAR) has been used to estimate the depth and amplitude of internal waves in the China seas. It is assumed that the observed groups of internal wave packets on SAR imagery are generated by local semidiurnal tides. The mean distance between the leading crest of two successive wave packets has been used to derive the group velocity of the internal waves. The depth and amplitude of internal waves have been calculated from a model which consists of the KdV equation, action balance equation and Bragg scattering model. Results show a good agreement with in situ measurements
Keywords :
amplitude estimation; ocean waves; oceanographic regions; oceanographic techniques; radar imaging; remote sensing by radar; spaceborne radar; synthetic aperture radar; tides; Bragg scattering model; ERS-1 synthetic aperture radar; KdV equation; SAR imagery; action balance equation; amplitude estimation; depth estimation; group velocity; internal wave packets; leading crest; local semidiurnal tides; Acceleration; Accelerometers; Amplitude estimation; Gravity; Nonlinear equations; Oceans; Radar scattering; Sea measurements; Tides; Water resources;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.978330
