气候变化领域集成服务门户(CCPortal): Raindrop Signature from Microwave Radiometer Over Deserts

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DOI	10.1029/2020GL088656
	Raindrop Signature from Microwave Radiometer Over Deserts
	You Y.; Joseph Munchak S.; Ferraro R.; Mohr K.; Peters-Lidard C.; Prigent C.; Ringerud S.; Rudlosky S.; Wang H.; Norouzi H.; Prakash S.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:16
英文摘要	Rainfall estimates from spaceborne microwave radiometers form the foundation of global precipitation data sets. Since the beginning of the satellite microwave rainfall estimation era in the 1980s, the primary signature leveraged over land for these estimates has been the brightness temperature (TB) depression due to ice particle scattering. Contrary to this practice, time series analyses based on observations from two spaceborne radars and two spaceborne radiometers reveal a TB increase at H19 due to raindrop emission as the primary cloud particle signature over desert terrain. Low surface emissivity supports the use of liquid raindrop emission as the primary signature over desert surfaces. In these regions, the surface rain rate better correlates with the liquid raindrop emission signal than with the scattering induced by ice further aloft, suggesting a new potential for improving rainfall estimation over deserts by exploiting the liquid raindrop emission signature. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Arid regions; Landforms; Liquids; Microwave devices; Microwave measurement; Radiometers; Rain; Rain gages; Time series analysis; Brightness temperatures; Global precipitation; Microwave radiometers; Microwave rainfall; Rainfall estimates; Rainfall estimations; Spaceborne radiometers; Surface emissivity; Drops; brightness temperature; data set; desert; emissivity; microwave radiometer; radar altimetry; raindrop; satellite altimetry; scattering; time series analysis
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169940
作者单位	Earth System Science Interdisciplinary Center/Cooperative Institute for Climate and Satellites, University of Maryland, College Park, MD, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; NOAA/NESDIS/STAR, College Park, MD, United States; Sorbonne Universite, Observatoire de Paris, Universite PSL, CNRS, LERMA, Paris, France; Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, United States; New York City College of Technology, New York, NY, United States; Divecha Centre for Climate Change, Indian Institute of Science, Bengaluru, India
推荐引用方式 GB/T 7714	You Y.,Joseph Munchak S.,Ferraro R.,et al. Raindrop Signature from Microwave Radiometer Over Deserts[J],2020,47(16).
APA	You Y..,Joseph Munchak S..,Ferraro R..,Mohr K..,Peters-Lidard C..,...&Prakash S..(2020).Raindrop Signature from Microwave Radiometer Over Deserts.Geophysical Research Letters,47(16).
MLA	You Y.,et al."Raindrop Signature from Microwave Radiometer Over Deserts".Geophysical Research Letters 47.16(2020).