气候变化领域集成服务门户(CCPortal): Quantifying the Influence of Cloud Radiative Feedbacks on Arctic Surface Warming Using Cloud Locking in an Earth System Model

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DOI	10.1029/2020GL089207
	Quantifying the Influence of Cloud Radiative Feedbacks on Arctic Surface Warming Using Cloud Locking in an Earth System Model
	Middlemas E.A.; Kay J.E.; Medeiros B.M.; Maroon E.A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	Understanding the influence of clouds on amplified Arctic surface warming remains an important unsolved research problem. Here, this cloud influence is directly quantified by disabling cloud radiative feedbacks or “cloud locking” within a state-of-the-art and well-documented model. Through comparison of idealized greenhouse warming experiments with and without cloud locking, the influence of Arctic and global cloud feedbacks is assessed. Global cloud feedbacks increase both global and Arctic warming by around 25%. In contrast, disabling Arctic cloud feedbacks has a negligible influence on both Arctic and global surface warming. Interestingly, the sum of noncloud radiative feedbacks does not change with either global or Arctic-only cloud locking. Notably, the influence of Arctic cloud feedbacks is likely underestimated, because, like many models, the model used here underestimates high-latitude supercooled cloud liquid. More broadly, this work demonstrates the value of regional and global cloud locking in a well-characterized model. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	Earth sciences; Geophysics; Arctic warming; Earth system model; Global surface warming; Greenhouse warming; High Latitudes; Research problems; State of the art; Surface warming; Locks (fasteners); amplification; climate feedback; cloud radiative forcing; cooling; experimental study; greenhouse gas; research work; warming; Arctic
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/169956
作者单位	Department of Atmospheric and Oceanic Sciences, University of Colorado Boulder, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; National Center for Atmospheric Research, Boulder, CO, United States; Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, Madison, WI, United States
推荐引用方式 GB/T 7714	Middlemas E.A.,Kay J.E.,Medeiros B.M.,et al. Quantifying the Influence of Cloud Radiative Feedbacks on Arctic Surface Warming Using Cloud Locking in an Earth System Model[J],2020,47(15).
APA	Middlemas E.A.,Kay J.E.,Medeiros B.M.,&Maroon E.A..(2020).Quantifying the Influence of Cloud Radiative Feedbacks on Arctic Surface Warming Using Cloud Locking in an Earth System Model.Geophysical Research Letters,47(15).
MLA	Middlemas E.A.,et al."Quantifying the Influence of Cloud Radiative Feedbacks on Arctic Surface Warming Using Cloud Locking in an Earth System Model".Geophysical Research Letters 47.15(2020).