DOI: 10.1029/2019GL085788
论文题名: Global Coupled Climate Response to Polar Sea Ice Loss: Evaluating the Effectiveness of Different Ice-Constraining Approaches
作者: Sun L. ; Deser C. ; Tomas R.A. ; Alexander M.
刊名: Geophysical Research Letters
ISSN: 948276
出版年: 2020
卷: 47, 期: 3 语种: 英语
英文关键词: climate models
; ice-constraining approaches
; polar sea ice loss effect
Scopus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
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159256
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
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]. Geophysical Research Letters,2020-01-01,47(3)