DOI: 10.1002/grl.50456
论文题名: Recent warming at Summit, Greenland: Global context and implications
作者: McGrath D. ; Colgan W. ; Bayou N. ; Muto A. ; Steffen K.
刊名: Geophysical Research Letters
ISSN: 0094-9076
EISSN: 1944-8807
出版年: 2013
卷: 40, 期: 10 起始页码: 2091
结束页码: 2096
语种: 英语
英文关键词: equilibrium line altitude
; Greenland Ice Sheet
; percolation zone
; surface melting
Scopus关键词: Confidence interval
; Equilibrium line altitudes
; Equilibrium lines
; Greenland Ice Sheet
; Near surface air temperature
; Summer warming
; Surface melting
; Winter seasons
; Glaciers
; Snow
; Solvents
; air temperature
; global warming
; instrumentation
; melting
; percolation
; seasonal variation
; Arctic
; Greenland
; Greenland Ice Sheet
英文摘要: Observations at Summit, Greenland suggest that the annual mean near-surface air temperature increased at 0.09 ± 0.01°C/a over the 1982-2011 climatology period. This rate of warming, six times the global average, places Summit in the 99th percentile of all globally observed warming trends over this period. The rate of warming at Summit is increasing over time. During the instrumental period (1987-2011), warming has been greatest in the winter season, although the implications of summer warming are more acute. The annual maximum elevation of the equilibrium line and dry snow line has risen at 44 and 35 m/a over the past 15 and 18 years, respectively. Extrapolation of this observed trend now suggests, with 95% confidence intervals, that the dry snow facies of the Greenland Ice Sheet will inevitably transition to percolation facies. There is a 50% probability of this transition occurring by 2025. © 2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879909119&doi=10.1002%2fgrl.50456&partnerID=40&md5=5f7da0d5cd73bf9fde6834814a3a7936
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6340
Appears in Collections: 气候减缓与适应
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作者单位: Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, UCB 216, Boulder, CO 80309-0216, United States
Recommended Citation:
McGrath D.,Colgan W.,Bayou N.,et al. Recent warming at Summit, Greenland: Global context and implications[J]. Geophysical Research Letters,2013-01-01,40(10).