气候变化领域集成服务门户(CCPortal): Investigating the impact of cloud-radiative feedbacks on tropical precipitation extremes

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DOI	10.1038/s41612-021-00174-x
	Investigating the impact of cloud-radiative feedbacks on tropical precipitation extremes
	Medeiros B.; Clement A.C.; Benedict J.J.; Zhang B.
发表日期	2021
ISSN	23973722
卷号	4 期号:1
英文摘要	Although societally important, extreme precipitation is difficult to represent in climate models. This study shows one robust aspect of extreme precipitation across models: extreme precipitation over tropical oceans is strengthened through a positive feedback with cloud-radiative effects. This connection is shown for a multi-model ensemble with experiments that make clouds transparent to longwave radiation. In all cases, tropical extreme precipitation reduces without cloud-radiative effects. Qualitatively similar results are presented for one model using the cloud-locking method to remove cloud feedbacks. The reduced extreme precipitation without cloud-radiative feedbacks does not arise from changes in the mean climate. Rather, evidence is presented that cloud-radiative feedbacks enhance organization of convection and most extreme precipitation over tropical oceans occurs within organized systems. This result suggests that climate models must correctly predict cloud structure and properties, as well as capture the essence of organized convection in order to accurately represent extreme rainfall. © 2021, The Author(s).
语种	英语
scopus关键词	accuracy assessment; climate feedback; climate modeling; cloud radiative forcing; marine atmosphere; precipitation intensity; qualitative analysis; rainfall; tropical meteorology; tropical region
来源期刊	npj Climate and Atmospheric Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177996
作者单位	National Center for Atmospheric Research, Climate and Global Dynamics, Boulder, CO, United States; Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, United States; Los Alamos National Laboratory, Fluid Dynamics and Solid Mechanics, Los Alamos, NM, United States
推荐引用方式 GB/T 7714	Medeiros B.,Clement A.C.,Benedict J.J.,et al. Investigating the impact of cloud-radiative feedbacks on tropical precipitation extremes[J],2021,4(1).
APA	Medeiros B.,Clement A.C.,Benedict J.J.,&Zhang B..(2021).Investigating the impact of cloud-radiative feedbacks on tropical precipitation extremes.npj Climate and Atmospheric Science,4(1).
MLA	Medeiros B.,et al."Investigating the impact of cloud-radiative feedbacks on tropical precipitation extremes".npj Climate and Atmospheric Science 4.1(2021).