气候变化领域集成服务门户(CCPortal): Global Coupled Climate Response to Polar Sea Ice Loss: Evaluating the Effectiveness of Different Ice-Constraining Approaches

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DOI	10.1029/2019GL085788
	Global Coupled Climate Response to Polar Sea Ice Loss: Evaluating the Effectiveness of Different Ice-Constraining Approaches
	Sun L.; Deser C.; Tomas R.A.; Alexander M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:3
英文摘要	Coupled ocean-atmosphere models have been utilized to investigate the global climate response to polar sea ice loss using different approaches to constrain ice concentration and thickness. The goal of this study is to compare two commonly used methods within a single model framework: ice albedo reduction, which is energy conserving, and ice-flux nudging, which is not energy conserving. The two approaches generate virtually identical equilibrium global climate responses to the same seasonal cycle of sea ice loss. However, while ice-flux nudging is able to control the sea ice state year-round, albedo reduction is most effective during summer and lessens the effects of climate change in winter due to the underestimation of sea ice loss. These evaluations have implications for the Polar Amplification Model Intercomparison Project (PAMIP), which proposes a set of coordinated coupled model experiments but without a defined protocol on how to constrain sea ice. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Climate change; Ice control; Sea ice; Solar radiation; Albedo reduction; Coupled modeling; Energy-conserving; Ice concentration; Model inter comparisons; Ocean-atmosphere models; Polar amplifications; Polar sea ice; Climate models; albedo; amplification; climate change; climate modeling; estimation method; global climate; ice thickness; sea ice; seasonal variation
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/170781
作者单位	Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; National Center for Atmospheric Research, Boulder, CO, United States; NOAA Earth System Research Laboratory Physical Science Division, Boulder, CO, United States
推荐引用方式 GB/T 7714	Sun L.,Deser C.,Tomas R.A.,et al. Global Coupled Climate Response to Polar Sea Ice Loss: Evaluating the Effectiveness of Different Ice-Constraining Approaches[J],2020,47(3).
APA	Sun L.,Deser C.,Tomas R.A.,&Alexander M..(2020).Global Coupled Climate Response to Polar Sea Ice Loss: Evaluating the Effectiveness of Different Ice-Constraining Approaches.Geophysical Research Letters,47(3).
MLA	Sun L.,et al."Global Coupled Climate Response to Polar Sea Ice Loss: Evaluating the Effectiveness of Different Ice-Constraining Approaches".Geophysical Research Letters 47.3(2020).