Title :
Comparison of polarimetric SAR techniques for the measurement of directional ocean wave spectra
Author :
Schuler, D.L. ; Lee, J.S. ; Pottier, E. ; De Grandi, G.
Author_Institution :
Remote Sensing Div., Naval Res. Lab., Washington, DC, USA
Abstract :
Several methods have been investigated which use fully polarimetric synthetic aperture radar (POLSAR) data to measure directional ocean wave slope spectra. Independent techniques have been developed to measure wave slopes in the orthogonal SAR (azimuth/range) directions. In this paper, wave spectra measured using two polarimetric methods are investigated. Spectra developed using: a) intensity-based polarimetric SAR methods and b) a more recent orientation/alpha angle algorithm are compared. NASA/JPL/AIRSAR L-band data from two-sites in California coastal waters have been used.
Keywords :
ocean waves; oceanographic techniques; radar polarimetry; remote sensing by radar; spectral analysis; synthetic aperture radar; California coastal waters; NASA/JPL/AIRSAR L-band data; POLSAR data; alpha angle algorithm; azimuth direction; directional ocean wave slope spectra measurement; directional ocean wave spectra; intensity-based polarimetric SAR methods; orientation angle algorithm; orthogonal SAR; polarimetric SAR techniques; polarimetric synthetic aperture radar; radar polarimetry; range direction; remote sensing; slick fields; Azimuth; Backscatter; Intensity modulation; L-band; Ocean waves; Polarization; Remote sensing; Sea measurements; Sea surface; Transfer functions;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2005. IGARSS '05. Proceedings. 2005 IEEE International
Print_ISBN :
0-7803-9050-4
DOI :
10.1109/IGARSS.2005.1526095
