气候变化领域集成服务门户(CCPortal): Modeling the Radiative Effect on Microphysics in Cirrus Clouds Against Satellite Observations

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DOI	10.1029/2020JD033923
	Modeling the Radiative Effect on Microphysics in Cirrus Clouds Against Satellite Observations
	Zeng X.; Gong J.; Li X.; Wu D.L.
发表日期	2021
ISSN	2169897X
卷号	126 期号:4
英文摘要	The radiative effect on microphysics (REM) plays an important role in the dew/frost formation near the surface. How REM impacts cirrus clouds is investigated in this study, using bin microphysical model simulations and coincident data of the CloudSat and Global Precipitation Measurement (GPM) satellites. REM affects ice crystal spectrum with two types: radiative cooling and warming. Radiative cooling, as predicted by the bin-model simulations, favors the formation of horizontally oriented ice crystals (HOICs), but radiative warming does not. Hence, a test of REM can be transformed to a test of HOICs, because HOICs can be measured by the microwave polarization observations of the GPM Microwave Imager (GMI) at 166 GHz. To analyze the GMI data for their HOIC distribution, clouds are sorted into four groups with different optical depth and altitude, based on the radiative cooling/warming ratio (or eta) computed with satellite-retrieved ice water content. Their HOIC distributions (e.g., the midlevel thick clouds have more HOICs than the high-level ones) agree well with those predicted by the bin-model simulations. The general agreement between the GMI observations and bin-model simulations suggests that REM is common in cirrus clouds and impacts cirrus clouds significantly. © 2021. The Authors. This article has been contributed to by US Government employees and their work is in the public domain in the USA.
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/185486
作者单位	Army Research Laboratory, Adelphi, MD, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; Universities Space Research Association, Columbia, MD, United States; Morgan State University, Baltimore, MD, United States
推荐引用方式 GB/T 7714	Zeng X.,Gong J.,Li X.,et al. Modeling the Radiative Effect on Microphysics in Cirrus Clouds Against Satellite Observations[J],2021,126(4).
APA	Zeng X.,Gong J.,Li X.,&Wu D.L..(2021).Modeling the Radiative Effect on Microphysics in Cirrus Clouds Against Satellite Observations.Journal of Geophysical Research: Atmospheres,126(4).
MLA	Zeng X.,et al."Modeling the Radiative Effect on Microphysics in Cirrus Clouds Against Satellite Observations".Journal of Geophysical Research: Atmospheres 126.4(2021).