Title :
Estimation of ocean wave height using polarization ratio of synthetic aperture radar data
Author :
Sugimoto, Mitsunobu ; Shiroto, Nobuaki ; Ouchi, Kazuo
Author_Institution :
Dept. of Comput. Sci., Nat. Defense Acad., Yokosuka, Japan
Abstract :
A new technique for estimating wave height of range-traveling ocean waves by using the polarization ratio of synthetic aperture radar (SAR) data is proposed. Unlike the previous methods based on scattering models such as composite surface model [1], the new method does not require any scattering models that strongly affect the estimation accuracy. First, the dependence of the polarization ratio on local incidence angles and its application to estimating wave height are described. Next, the estimation method is applied to the data acquired by Phased Array L-band SAR (PAL SAR) on board of Advanced Land Observing Satellite (ALOS). Then, the results are analyzed and discussed.
Keywords :
data analysis; geophysical image processing; ocean waves; oceanographic techniques; phased array radar; polarisation; synthetic aperture radar; Advanced Land Observing Satellite; composite surface model; local incidence angle; ocean wave height estimation; phased array L-band SAR; polarization ratio; scattering model; synthetic aperture radar data; Estimation; Ocean waves; Remote sensing; Sea measurements; Sea surface; Surface waves; Synthetic aperture radar; Polarization ratio; synthetic aperture radar (SAR); wave height estimation;
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.2011.6049801
