DOI: 10.1002/2015GL063861
论文题名: Influence of West Antarctic Ice Sheet collapse on Antarctic surface climate
作者: Steig E.J. ; Huybers K. ; Singh H.A. ; Steiger N.J. ; Ding Q. ; Frierson D.M.W. ; Popp T. ; White J.W.C.
刊名: Geophysical Research Letters
ISSN: 0094-8655
EISSN: 1944-8386
出版年: 2015
卷: 42, 期: 12 起始页码: 4862
结束页码: 4868
语种: 英语
英文关键词: Antarctica
; atmospheric circulation
; glaciology
; ice core
; sea level
Scopus关键词: Climate models
; Glacial geology
; Glaciers
; Isotopes
; Sea level
; Antarctica
; Atmospheric circulation
; Climate model simulations
; Cyclonic circulation
; Glaciology
; Ice core
; Marine isotope stages
; West antarctic ice sheets
; Ice
; advection
; atmospheric circulation
; climate modeling
; collapse
; cooling
; cyclone
; glaciology
; ice core
; isotopic analysis
; Last Interglacial
; marine isotope stage
; paleotemperature
; sea level change
; topography
; Antarctic Ice Sheet
; Antarctica
; East Antarctic Ice Sheet
; East Antarctica
; Hercules Dome
; Marie Byrd Land
; Mount Moulton
; Ross Sea
; Southern Ocean
; West Antarctic Ice Sheet
; West Antarctica
英文摘要: Climate model simulations are used to examine the impact of a collapse of the West Antarctic Ice Sheet (WAIS) on the surface climate of Antarctica. The lowered topography following WAIS collapse produces anomalous cyclonic circulation with increased flow of warm, maritime air toward the South Pole and cold-air advection from the East Antarctic plateau toward the Ross Sea and Marie Byrd Land, West Antarctica. Relative to the background climate, areas in East Antarctica that are adjacent to the WAIS warm, while substantial cooling (several -C) occurs over parts of West Antarctica. Anomalously low isotope-paleotemperature values at Mount Moulton, West Antarctica, compared with ice core records in East Antarctica, are consistent with collapse of the WAIS during the last interglacial period, Marine Isotope Stage 5e. More definitive evidence might be recoverable from an ice core record at Hercules Dome, East Antarctica, which would experience significant warming and positive oxygen isotope anomalies if the WAIS collapsed. © 2015. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84948715709&doi=10.1002%2f2015GL063861&partnerID=40&md5=995d9dc123777fd0c376eea1a7af1d4d
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/8271
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Quaternary Research Center, Department of Earth and Space Sciences, University of Washington, Seattle, WA, United States
Recommended Citation:
Steig E.J.,Huybers K.,Singh H.A.,et al. Influence of West Antarctic Ice Sheet collapse on Antarctic surface climate[J]. Geophysical Research Letters,2015-01-01,42(12).