DOI: 10.1002/2016GL068356
论文题名: Variable relationship between accumulation and temperature in West Antarctica for the past 31,000 years
作者: Fudge T.J. ; Markle B.R. ; Cuffey K.M. ; Buizert C. ; Taylor K.C. ; Steig E.J. ; Waddington E.D. ; Conway H. ; Koutnik M.
刊名: Geophysical Research Letters
ISSN: 0094-9101
EISSN: 1944-8832
出版年: 2016
卷: 43, 期: 8 起始页码: 3795
结束页码: 3803
语种: 英语
英文关键词: accumulation
; Antarctica
; ice core
; sea-level rise
; temperature
Scopus关键词: Sea level
; Temperature
; Accumulation
; Antarctica
; Atmospheric circulation
; General circulation model simulations
; Ice core
; Sea level rise
; Variable relationships
; West antarctic ice sheets
; Ice
; accumulation
; atmospheric circulation
; general circulation model
; geological record
; glacial-interglacial cycle
; ice core
; paleoceanography
; resolution
; sea level change
; sea surface temperature
; temporal period
; temporal variation
; Antarctic Ice Sheet
; Antarctica
; West Antarctic Ice Sheet
; West Antarctica
; West Antarctica
英文摘要: The Antarctic contribution to sea level is a balance between ice loss along the margin and accumulation in the interior. Accumulation records for the past few decades are noisy and show inconsistent relationships with temperature. We investigate the relationship between accumulation and temperature for the past 31 ka using high-resolution records from the West Antarctic Ice Sheet (WAIS) Divide ice core in West Antarctica. Although the glacial-interglacial increases result in high correlation and moderate sensitivity for the full record, the relationship shows considerable variability through time with high correlation and high sensitivity for the 0-8 ka period but no correlation for the 8-15 ka period. This contrasts with a general circulation model simulation which shows homogeneous sensitivities between temperature and accumulation across the entire time period. These results suggest that variations in atmospheric circulation are an important driver of Antarctic accumulation but they are not adequately captured in model simulations. Model-based projections of future Antarctic accumulation, and its impact on sea level, should be treated with caution. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992302010&doi=10.1002%2f2016GL068356&partnerID=40&md5=823388dc1def89530a15362464eb075c
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10064
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: Department of Earth and Space Sciences, University of Washington, Seattle, WA, United States
Recommended Citation:
Fudge T.J.,Markle B.R.,Cuffey K.M.,et al. Variable relationship between accumulation and temperature in West Antarctica for the past 31,000 years[J]. Geophysical Research Letters,2016-01-01,43(8).