DOI: 10.5194/cp-8-2053-2012
Scopus记录号: 2-s2.0-84871414352
论文题名: Investigating the past and recent δ18O-accumulation relationship seen in Greenland ice cores
作者: Buchardt S.L. ; Clausen H.B. ; Vinther B.M. ; Dahl-Jensen D.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2012
卷: 8, 期: 6 起始页码: 2053
结束页码: 2059
语种: 英语
Scopus关键词: accumulation rate
; data set
; foehn
; high temperature
; ice core
; oxygen isotope
; sensitivity analysis
; Arctic
; Greenland
; Greenland Ice Sheet
英文摘要: Decadal means of δ18O and accumulation rates from 52 ice core locations in Greenland are presented. The accumulation rates are derived from annual layers determined in the δ18O curve. Investigation of the δ18O-accumulation relationship across the ice divide reveals a significant Foehn effect with anticorrelation of δ18O and accumulation rate on the lee side of the divide in Southern Greenland, while no effect is seen in Central Greenland. Furthermore, the sensitivity of accumulation rate to changes in temperature is found to be smaller in Northern Greenland than in the central and southern parts. Four records in the data set contain sufficient recent data that the period of observed temperature rise from the 1990s and onwards can be investigated. All four records are from locations close to the ice divide in Northern Greenland and while three of them show increased temperatures, no conclusive statement can be made about the accumulation rate from these data. © Author(s) 2012. CC Attribution 3.0 License. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49495
Appears in Collections: 气候变化与战略
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Recommended Citation:
Buchardt S.L.,Clausen H.B.,Vinther B.M.,et al. Investigating the past and recent δ18O-accumulation relationship seen in Greenland ice cores[J]. Climate of the Past,2012-01-01,8(6)