DOI: 10.1002/2014GL060735
论文题名: The pattern of anthropogenic signal emergence in Greenland Ice Sheet surfacemass balance
作者: Fyke J.G. ; Vizcaíno M. ; Lipscomb W.H.
刊名: Geophysical Research Letters
ISSN: 0094-10580
EISSN: 1944-10311
出版年: 2014
卷: 41, 期: 16 起始页码: 6002
结束页码: 6008
语种: 英语
Scopus关键词: Anthropogenic signals
; Greenland Ice Sheet
; climate change
; ice cover
; mass balance
; melting
; spatial distribution
; Arctic
; Greenland
; Greenland Ice Sheet
英文摘要: Surface mass balance (SMB) trends influence observed Greenland Ice Sheet (GrIS) mass loss, but the component of these trends related to anthropogenic forcing is unclear. Here we study the simulated spatial pattern of emergence of an anthropogenically derived GrIS SMB signal between 1850 and 2100 using the Community Earth System Model. We find emergence timing heterogeneity, with a bimodal structure reflecting interior snowfall increases against a background of low SMB variability, and peripheral surface melting increases against a backdrop of high SMB variability. We also find a nonemerging intermediate region. We conclude that (1) a bimodal pattern of GrIS SMB change will unambiguously reflect the impact of anthropogenic forcing; (2) present-day peripheral and interior SMB trends likely have an underlying anthropogenically forced component; (3) local emergence occurs well before emergence of a spatially integrated signal; and (4) the GrIS summit region may be an ideal location for monitoring regional/global climate change. © 2014. American Geophysical Union. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84906003258&doi=10.1002%2f2014GL060735&partnerID=40&md5=fa6b942d719a66cc2069ee53525b0c28
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7844
Appears in Collections: 气候减缓与适应
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作者单位: Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM, United States
Recommended Citation:
Fyke J.G.,Vizcaíno M.,Lipscomb W.H.. The pattern of anthropogenic signal emergence in Greenland Ice Sheet surfacemass balance[J]. Geophysical Research Letters,2014-01-01,41(16).