The polarization-dependent relation between radar backscatter from the ocean surface and surface wind vector at frequencies between 1 and 18 GHz

Author

Unal, C.M.H. ; Snoeij, P. ; Swart, P.J.F.

Author_Institution

Lab. of Telecommun. & Remote Sensing, Delft Univ. of Technol., Netherlands

Volume

29

Issue

4

fYear

1991

fDate

7/1/1991 12:00:00 AM

Firstpage

621

Lastpage

626

Abstract

A series of airborne scatterometer measurements carried out with the DUTSCAT multifrequency airborne scatterometer are discussed. This study deals with the first results obtained from the analysis of these measurements. The objective of this activity is to establish a multifrequency dual-polarization radar signature database, and with it a multidimensional version of the current CMOD1 model. The main features of the data set are the following. The wind exponent of the upwind normalized radar cross section (NRCS) increases with frequency and incidence angle in the case of HH polarization. The upwind/downwind ratio is mainly negative at 20° of incidence angle, always at C-, X-, and Ku1-bands

Keywords

atmospheric techniques; remote sensing by radar; wind; 1 to 18 GHz; CMOD1 model; DUTSCAT; SHF; UHF; airborne scatterometer; atmosphere; incidence angle; marine wind; measurement; microwave; multidimensional; multifrequency dual-polarization radar signature database; normalized radar cross section; ocean surface; polarization-dependent relation; radar backscatter; remote sensing; surface wind vector; technique; Azimuth; Backscatter; Frequency; Ocean temperature; Polarization; Radar measurements; Radar theory; Sea measurements; Sea surface; Spaceborne radar;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.135824

Filename

135824