DOI: 10.5194/cp-11-369-2015
Scopus记录号: 2-s2.0-84924254243
论文题名: Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene
作者: Koenig S.J. ; Dolan A.M. ; De Boer B. ; Stone E.J. ; Hill D.J. ; Deconto R.M. ; Abe-Ouchi A. ; Lunt D.J. ; Pollard D. ; Quiquet A. ; Saito F. ; Savage J. ; Van De Wal R.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2015
卷: 11, 期: 3 起始页码: 369
结束页码: 381
语种: 英语
Scopus关键词: atmospheric general circulation model
; climate forcing
; climate variation
; GRIP
; ice sheet
; numerical model
; paleoclimate
; paleotemperature
; Pliocene
; proxy climate record
; Arctic
; Greenland
; Greenland Ice Sheet
英文摘要: The understanding of the nature and behavior of ice sheets in past warm periods is important for constraining the potential impacts of future climate change. The Pliocene warm period (between 3.264 and 3.025 Ma) saw global temperatures similar to those projected for future climates; nevertheless, Pliocene ice locations and extents are still poorly constrained. We present results from the efforts to simulate mid-Pliocene Greenland Ice Sheets by means of the international Pliocene Ice Sheet Modeling Intercomparison Project (PLISMIP). We compare the performance of existing numerical ice sheet models in simulating modern control and mid-Pliocene ice sheets with a suite of sensitivity experiments guided by available proxy records. We quantify equilibrated ice sheet volume on Greenland, identifying a potential range in sea level contributions from warm Pliocene scenarios. A series of statistical measures are performed to quantify the confidence of simulations with focus on inter-model and inter-scenario differences. We find that Pliocene Greenland Ice Sheets are less sensitive to differences in ice sheet model configurations and internal physical quantities than to changes in imposed climate forcing. We conclude that Pliocene ice was most likely to be limited to the highest elevations in eastern and southern Greenland as simulated with the highest confidence and by synthesizing available regional proxies; however, the extent of those ice caps needs to be further constrained by using a range of general circulation model (GCM) climate forcings ©Author(s) 2015. CC Attribution 3.0 License.. 资助项目: ERC, National Science Foundation
; NSF, National Science Foundation
; NSF, National Science Foundation
; ERC, National Science Foundation
; NERC, National Science Foundation
; NSF, National Science Foundation
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49166
Appears in Collections: 气候变化与战略
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Recommended Citation:
Koenig S.J.,Dolan A.M.,De Boer B.,et al. Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene[J]. Climate of the Past,2015-01-01,11(3)