Title :
Polarised TOPSAR operational model of internal wave generation mechanism
Author_Institution :
Inst. of Oceanogr. (INOS), Univ. Coll. Sci. & Technol. Malaysia, Terengganu, Malaysia
Abstract :
The generation mechanism of internal waves can be investigated by polarised SAR data. The integration between digital elevation model and Canny algorithm will be more useful for automatic detection of internal waves. The aim of this paper is to understand the generation mechanism of internal waves in shallow water of Malaysian coastal waters. The continuous wavelet transform is used to estimate energy and wavelengths within solution peaks from the detect internal wave. The Doppler radar was used to model the speed of internal wave. This study shows that the polarized PHH band is more suitable for internal wave detection compared to LHH and Cvv bands. It can be concluded that polarised SAR data could be used to understand the generation mechanism of internal waves. It can said that internal waves on the shallow waters of Malaysia are generated by strong tidal current flow over the irregular bottom topography.
Keywords :
ocean waves; oceanographic regions; oceanographic techniques; radar polarimetry; remote sensing by radar; synthetic aperture radar; wavelet transforms; AIRSAR; Canny algorithm; Doppler radar; Malaysia; Malaysian coastal waters; SAR; South China Sea; TOPSAR; automatic detection; coast; continuous wavelet transform; digital elevation model; dynamics; generation mechanism; internal wave; irregular bottom topography; ocean; operational model; polarisation; polarised SAR; radar polarimetry; radar remote sensing; shallow water; soliton; strong tidal current; synthetic aperture radar; Continuous wavelet transforms; Digital elevation models; Frequency estimation; Polarization; Radar detection; Sea measurements; Sea surface; Surface topography; Surface waves; Wavelet transforms;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2002. IGARSS '02. 2002 IEEE International
Print_ISBN :
0-7803-7536-X
DOI :
10.1109/IGARSS.2002.1026796