Radar cross section dependence on wind speed

Author

Long, David G. ; Barrowes, Ben E. ; Arnold, David V.

Author_Institution

Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA

Volume

3

fYear

1999

fDate

1999

Firstpage

1863

Abstract

YSCAT was an ultrawideband (2-20 GHz), near constant beamwidth scatterometer intended to provide radar cross section measurements at varying radar and environmental parameters. YSCAT was deployed on the CCIW (Canada Center for Inland Waters) tower on Lake Ontario for a period of six months in 1994. Using YSCAT data, this paper reports (1) observance of a “low wind-speed cutoff”, the fall-off of σ₀ which occurs at low wind speeds, and (2) the results of a fitting 2-component lognormal/Rayleigh combined probability distribution to the observed backscattered power measurements at C-band (5 GHz) and X-band (10 GHz). The observed characteristic trends of the fitted pdf model parameters verses wind speed are shown and discussed

Keywords

atmospheric boundary layer; atmospheric techniques; backscatter; meteorological radar; ocean waves; oceanographic techniques; radar cross-sections; remote sensing by radar; wind; 2 to 20 GHz; C-band; SHF; X-band; YSCAT; backscatter; fall-off; low wind-speed cutoff; marine atmosphere; measurement technique; ocean wave; radar cross section; radar remote sensing; radar scattering; radar scatterometry; sea surface; surface layer; wind speed; wind velocity; Lakes; Poles and towers; Power measurement; Probability distribution; Radar cross section; Radar measurements; Radar scattering; Ultra wideband radar; Ultra wideband technology; Wind speed;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International

Conference_Location

Hamburg

Print_ISBN

0-7803-5207-6

Type

conf

DOI

10.1109/IGARSS.1999.772120

Filename

772120