Title :
On the bound wave scattering in a wind-wave tank
Author :
Liu, Lei ; Yu, Xiangzhen ; Wang, Xiaoqing ; Chong, Jinsong ; Hong, Wen
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Microwave Imaging, Inst. of Electron., Beijing, China
Abstract :
There exist bound gravity-capillary waves that move at the speed of dominate waves on the ocean surface, besides free gravity-capillary waves that satisfy the dispersion relation. The radar Doppler spectra are believed to be the sum of two parts: one is attributed to free waves, and the other is attributed to bound waves. The experiments on microwave backscatter from ocean surface in the wind-wave tank are reported in this paper. The occurrence of bound waves can well explain the asymmetry of Doppler spectra between upwind and downwind.
Keywords :
Doppler effect; Doppler radar; capillary waves; dispersion relations; geophysical fluid dynamics; gravity waves; ocean waves; oceanographic techniques; remote sensing by radar; seawater; wind; Doppler spectra asymmetry; bound gravity-capillary wave; bound wave scattering; dispersion relation; downwind; free gravity-capillary waves; free wave; microwave backscatter; ocean surface; ocean waves; radar Doppler spectra; upwind; wind-wave tank; Doppler effect; Friction; Radar antennas; Sea surface; Surface waves; Wind speed; Bound Waves; Doppler Spectra; Ocean Surface Backscatter;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4577-1003-2
DOI :
10.1109/IGARSS.2011.6048941
