DOI: 10.1007/s00382-011-1161-7
Scopus记录号: 2-s2.0-84860416992
论文题名: Deuterium excess record in a southern Tibetan ice core and its potential climatic implications
作者: Zhao H. ; Xu B. ; Yao T. ; Wu G. ; Lin S. ; Gao J. ; Wang M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 38, 期: 2017-09-10 起始页码: 1791
结束页码: 1803
语种: 英语
英文关键词: Deuterium excess
; Ice core
; Indian Ocean SST
; Monsoon
; Tibetan Plateau
英文摘要: A 55-m long ice core, drilled close to bedrock from Mt. Noijin Kangsang on the southern Tibetan Plateau in summer 2007, was annually dated covering the period of 1864-2006 AD. The stable isotope ratios (δ18O and δD) of the ice core were measured and thereby the deuterium excess (d) was calculated by d = δD - 8*δ18O for the individual ice samples. Results show that the d values of the ice samples were predominantly controlled by the moisture sources. The significant increasing trend of annual mean d values along the ice core is mainly related to the rapid warming of the tropical Indian Ocean, although the tendency is subjected to the modulation by the western-derived moisture. The decreasing Indian monsoon precipitation on the southern Tibetan Plateau, physically linked with the increasing tropical Indian Ocean SST, reduced the share of monsoon precipitation in the annual total accumulation, making an additional contribution to the significant increase of annual mean d in the Noijin Kangsang ice core with high values during the past 143 years. © 2011 Springer-Verlag. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55296
Appears in Collections: 过去全球变化的重建
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作者单位: Key Laboratory of Tibetan Environment Changes and Land Surface Processes, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China
Recommended Citation:
Zhao H.,Xu B.,Yao T.,et al. Deuterium excess record in a southern Tibetan ice core and its potential climatic implications[J]. Climate Dynamics,2012-01-01,38(2017-09-10)