气候变化领域集成服务门户(CCPortal): An Improved Beta Method for Ice Cloud Property Retrievals: Theory

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DOI	10.1029/2019JD031863
	An Improved Beta Method for Ice Cloud Property Retrievals: Theory
	Saito M.; Yang P.; Heidinger A.K.; Li Y.
发表日期	2020
ISSN	2169897X
卷号	125 期号:14
英文摘要	The beta method has long been used for ice cloud property retrievals with the utilization of thermal infrared observations. The method assumes an idealized cloud that is isothermal and does not scatter radiation, which results in systematic biases in ice cloud property retrievals. We improve the beta method by taking into account, for the first time since the beta method was developed, a nonisothermal cloud layer and the cloud scattering effects. The improved beta method provides almost unbiased cloud optical thickness retrievals for typical cirrus clouds and reduces the systematic biases of effective particle radius retrievals for optically thin clouds. The improved beta method does not involve either Jacobian or iterative radiative transfer calculations. As a result, this method is computationally efficient, robustly applicable to any historical and current spaceborne thermal infrared observations, and capable of processing a large amount of satellite data. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	beta method; ice clouds; remote sensing; thermal infrared
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185895
作者单位	Department of Atmospheric Sciences, Texas A&M University, College Station, TX, United States; NOAA/NESDIS/Center for Satellite Applications and Research, Madison, WI, United States; Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin, Madison, WI, United States
推荐引用方式 GB/T 7714	Saito M.,Yang P.,Heidinger A.K.,et al. An Improved Beta Method for Ice Cloud Property Retrievals: Theory[J],2020,125(14).
APA	Saito M.,Yang P.,Heidinger A.K.,&Li Y..(2020).An Improved Beta Method for Ice Cloud Property Retrievals: Theory.Journal of Geophysical Research: Atmospheres,125(14).
MLA	Saito M.,et al."An Improved Beta Method for Ice Cloud Property Retrievals: Theory".Journal of Geophysical Research: Atmospheres 125.14(2020).