Title
On Quad-Polarized SAR Measurements of the Ocean Surface
Abstract
This paper provides improved quantitative estimates of the wind-ruffled roughness contributions to dual co- and cross-polarized radar signals. Expanding previous approaches, 1696 RADARSAT-2 quad-polarized synthetic aperture radar (SAR) measurements, co-located with 65 <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">in situ</italic> National Data Buoy Center (NDBC) buoy observations, are analyzed. Considering all wind conditions, the impact of breaking and near-breaking waves on dual co- and cross-polarized radar signals is robustly documented. For VV polarized measurements, the contribution of breaking waves decreased from 60% to 20% with increasing incidence angle, whereas for HH polarization and cross-polarization measurements, it can amount to about 60%–70% for all incidence angles. Building on the large analyzed data set, robust empirical dependencies between breaking waves and their impact on co- and cross-pol signals are then derived, as functions of wind speeds, incidence angles, and azimuth directions.
Year
DOI
Venue
2019
10.1109/TGRS.2019.2920750
IEEE Transactions on Geoscience and Remote Sensing
Keywords
Field
DocType
Sea measurements,Synthetic aperture radar,Sea surface,Wind speed,Rough surfaces
Buoy,Breaking wave,Wind speed,Angle of incidence,Synthetic aperture radar,Remote sensing,Azimuth,Polarization (waves),Surface finish,Mathematics
Journal
Volume
Issue
ISSN
57
11
0196-2892
Citations 
PageRank 
References 
0
0.34
0
Authors
5
Name
Order
Citations
PageRank
Vladimir N. Kudryavtsev102.03
Shengren Fan201.01
Biao Zhang39723.66
Alexis Mouche48521.13
Bertrand Chapron524452.89