气候变化领域集成服务门户(CCPortal): Contrasting Aerosol Effects on Long-Wave Cloud Forcing in South East Asia and Amazon Simulated With Community Atmosphere Model Version 5.3

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DOI	10.1029/2020JD032380
	Contrasting Aerosol Effects on Long-Wave Cloud Forcing in South East Asia and Amazon Simulated With Community Atmosphere Model Version 5.3
	Wang M.; Peng Y.; Liu Y.
发表日期	2020
ISSN	2169897X
卷号	125 期号:24
英文摘要	Aerosols modify cloud microphysical and radiative properties and thus impact the shortwave and long-wave cloud forcing (LWCF). This study first reports the finding of contrasting aerosol effects on LWCF in South East Asia and Amazon in the Community Atmosphere Model version 5.3 (CAM5.3), which corresponds to the sum of LW indirect and semi-direct effects investigated in Ghan et al. (2012, http://doi.org/10.1175/jcli-d-11-00650.1). A series of numerical experiments are conducted to decompose the complex aerosol effects on LWCF. Our analysis indicates that the cooling (negative aerosol effects on LWCF) in Amazon is due mainly to the aerosol effects on warm clouds and the inhibition of vertical motion by the aerosol-induced radiative cooling. In contrast, the warming (positive aerosol effects on LWCF) in South East Asia is due mainly to the aerosol effect on homogeneous freezing, thus, reducing the ice particle size and prolonging the existence of ice cloud. Our results emphasize that a comprehensive analysis of integrated aerosol effects on both warm and ice clouds is necessary for better understanding the aerosol effects on LWCF. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	aerosol-cloud interaction; cloud microphysics; global climate model; heterogeneous ice nucleation; homogeneous freezing; long-wave aerosol indirect effect
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/185574
作者单位	Department of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Tsinghua University, Beijing, China; Brookhaven National Laboratory, Upton, NY, United States
推荐引用方式 GB/T 7714	Wang M.,Peng Y.,Liu Y.. Contrasting Aerosol Effects on Long-Wave Cloud Forcing in South East Asia and Amazon Simulated With Community Atmosphere Model Version 5.3[J],2020,125(24).
APA	Wang M.,Peng Y.,&Liu Y..(2020).Contrasting Aerosol Effects on Long-Wave Cloud Forcing in South East Asia and Amazon Simulated With Community Atmosphere Model Version 5.3.Journal of Geophysical Research: Atmospheres,125(24).
MLA	Wang M.,et al."Contrasting Aerosol Effects on Long-Wave Cloud Forcing in South East Asia and Amazon Simulated With Community Atmosphere Model Version 5.3".Journal of Geophysical Research: Atmospheres 125.24(2020).