Title :
The estimation of ocean current from ω-k analysis of radar data
Author :
Lamont-Smith, T.
Author_Institution :
Defence Res. Agency, Malvern, UK
Abstract :
2D Fourier transform analysis was carried out on radar sea clutter data. It was found that the gravity wave dispersion relation and its harmonics were clearly visible in the ω-k images. The dispersion curve and its harmonics were found to be distorted and rotated from their expected positions due to the existence of ocean currents. Measurements are made from the dispersion curves of both advancing and receding waves, and a significant difference is observed between the two measurements
Keywords :
oceanographic techniques; remote sensing by radar; ω-k analysis; current; dispersion curve; gravity wave dispersion relation; harmonics; measurement technique; ocean dynamics; ocean wave current interaction; radar remote sensing; radar sea clutter; sea surface; two dimensional Fourier transform analysis; Data analysis; Dispersion; Distortion measurement; Frequency; Gravity; Oceans; Polarization; Radar clutter; Radar imaging; Sea measurements;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516787
