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contributor authorGuymer, Trevor H.
contributor authorQuartly, Graham D.
contributor authorSrokosz, Meric A.
date accessioned2017-06-09T14:01:15Z
date available2017-06-09T14:01:15Z
date copyright1995/12/01
date issued1995
identifier issn0739-0572
identifier otherams-1102.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4146202
description abstractAn investigation into a potentially important, but little-studied effect on altimeter data?rain contamination?has been carried out using ERS-1. The method involves identifying large changes in the radar backscatter coefficient and relating these to atmospheric liquid water estimates obtained from an onboard microwave radiometer. The latter is found to provide a useful means of distinguishing between wind and rain events. In general, the backscatter coefficient is reduced most when the liquid water content is high, and by an amount that is consistent with atmospheric attenuation at the radar frequency in use. However, some examples of enhanced backscatter were also observed indicating a possible reduction in surface roughness by the impact of raindrops on the ocean surface. Examination of return pulse shapes across significant rain events reveals behavior consistent with published theoretical work and shows how rain may lead to loss-of-lock in extreme conditions. The results of this study have implications for improved data quality flagging procedures and correction of ERS-1 altimeter winds.
publisherAmerican Meteorological Society
titleThe Effects of Rain on ERS-1 Radar Altimeter Data
typeJournal Paper
journal volume12
journal issue6
journal titleJournal of Atmospheric and Oceanic Technology
identifier doi10.1175/1520-0426(1995)012<1229:TEOROR>2.0.CO;2
journal fristpage1229
journal lastpage1247
treeJournal of Atmospheric and Oceanic Technology:;1995:;volume( 012 ):;issue: 006
contenttypeFulltext


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