DOI: 10.1175/JCLI-D-15-0316.1
Scopus记录号: 2-s2.0-84957655663
论文题名: Atmospheric impact of arctic sea ice loss in a coupled ocean-atmosphere simulation
作者: Petrie R.E. ; Shaffrey L.C. ; Sutton R.T.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2015
卷: 28, 期: 24 起始页码: 9606
结束页码: 9622
语种: 英语
Scopus关键词: Atmospheric pressure
; Atmospheric temperature
; Climate models
; Climatology
; Fighter aircraft
; Ice
; Meteorology
; Sea ice
; Surface waters
; Arctic
; Atmospheric circulation
; Geographic location
; Meridional temperature gradient
; North Atlantic oscillations
; Sea ice concentration
; Sea surface temperature (SST)
; Surface air temperatures
; Oceanography
; atmosphere-ocean coupling
; atmospheric circulation
; climate modeling
; gyre
; North Atlantic Oscillation
; sea ice
; sea surface temperature
; Arctic
; Atlantic Ocean
; Atlantic Ocean (North)
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: The atmospheric response to an idealized decline in Arctic sea ice is investigated in a novel fully coupled climate model experiment. In this experiment two ensembles of single-year model integrations are performed starting on 1 April, the approximate start of the ice melt season. By perturbing the initial conditions of sea ice thickness (SIT), declines in both sea ice concentration and SIT, which result in sea ice distributions that are similar to the recent sea ice minima of 2007 and 2012, are induced. In the ice loss regions there are strong (~3 K) local increases in sea surface temperature (SST); additionally, there are remote increases in SST in the central North Pacific and subpolar gyre in the North Atlantic. Over the central Arctic there are increases in surface air temperature (SAT) of ~8 K due to increases in ocean-atmosphere heat fluxes. There are increases in SAT over continental North America that are in good agreement with recent changes as seen by reanalysis data. It is estimated that up to two-thirds of the observed increase in SAT in this region could be related to Arctic sea ice loss. In early summer there is a significant but weak atmospheric circulation response that projects onto the summer North Atlantic Oscillation (NAO). In early summer and early autumn there is an equatorward shift of the eddy-driven jet over the North Atlantic as a result of a reduction in the meridional temperature gradients. In winter there is no projection onto a particular phase of the NAO. © 2015 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/50860
Appears in Collections: 气候变化事实与影响
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作者单位: NCAS-Climate, Department of Meteorology, University of Reading, Reading, United Kingdom
Recommended Citation:
Petrie R.E.,Shaffrey L.C.,Sutton R.T.. Atmospheric impact of arctic sea ice loss in a coupled ocean-atmosphere simulation[J]. Journal of Climate,2015-01-01,28(24)