Title :
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
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;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1999. IGARSS '99 Proceedings. IEEE 1999 International
Conference_Location :
Hamburg
Print_ISBN :
0-7803-5207-6
DOI :
10.1109/IGARSS.1999.772120
