DOI: 10.1175/JCLI-D-18-0134.1
Scopus记录号: 2-s2.0-85053035083
论文题名: Evolution of the global coupled climate response to Arctic sea ice loss during 1990-2090 and its contribution to climate change
作者: Sun L. ; Alexander M. ; Deser C.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2018
卷: 31, 期: 19 起始页码: 7823
结束页码: 7843
语种: 英语
英文关键词: Arctic
; Atmospheric circulation
; Climate change
; Climate models
; Sea ice
; Thermohaline circulation
Scopus关键词: Atmospheric radiation
; Atmospheric temperature
; Climate change
; Global warming
; Greenhouse gases
; Oceanography
; Sea ice
; Surface properties
; Surface waters
; Anthropogenic changes
; Arctic
; Atlantic meridional overturning circulations
; Atmospheric circulation
; Geophysical fluid dynamics laboratories
; Intertropical convergence zone
; Sea surface temperature (SST)
; Thermohaline circulations
; Climate models
英文摘要: The role of transient Arctic sea ice loss in the projected greenhouse gas-induced late-twentieth- to late-twenty-first-century climate change is investigated using the Geophysical Fluid Dynamics Laboratory's Coupled Model version 3. Two sets of simulations have been conducted, one with representative concentration pathway (RCP) 8.5 radiative forcing and the second with RCP forcing but with Arctic sea ice nudged to its 1990 state. The difference between the two five-member sets indicates the influence of decreasing Arctic sea ice on the climate system. Within the Arctic, sea ice loss is found to be a primary driver of the surface temperature and precipitation changes. Arctic sea ice depletion also plays a dominant role in projected Atlantic meridional overturning circulation weakening and changes in North Atlantic extratropical sea surface temperature and salinity, especially in the first half century. The effect of present-day Arctic sea ice loss on Northern Hemisphere (NH) extratropical atmospheric circulation is small relative to internal variability and the future sea ice loss effect on atmospheric circulation is distinct from the projected anthropogenic change. Arctic sea ice loss warms NH extratropical continents and is an important contributor to global warming not only over high latitudes but also in the eastern United States. Last, the Arctic sea ice loss displaces the Pacific intertropical convergence zone (ITCZ) equatorward and induces a "mini-global warming" in the tropical upper troposphere. © 2018 American Meteorological Society.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/110671
Appears in Collections: 影响、适应和脆弱性 气候变化事实与影响
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作者单位: Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; Physical Sciences Division, NOAA/Earth System Research Laboratory, Boulder, CO, United States; Climate and Global Dynamics, National Center for Atmospheric Research, Boulder, CO, United States
Recommended Citation:
Sun L.,Alexander M.,Deser C.. Evolution of the global coupled climate response to Arctic sea ice loss during 1990-2090 and its contribution to climate change[J]. Journal of Climate,2018-01-01,31(19)