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Evidence for decreasing South Asian summer monsoon in the past 160 years from varved sediment in Lake Xinluhai, Tibetan Plateau

文献类型：期刊论文

作者Chu, Guoqiang1; Sun, Qing3; Yang, Ke2; Li, Aiguo2; Yu, Xiaohan2; Xu, Tao3; Yan, Fen2; Wang, Hua2; Liu, Meimei3; Wang, Xiaohua1
刊名JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
出版日期2011-01-26
卷号116
ISSN号2169-897X
DOI10.1029/2010JD014454
文献子类Article
英文摘要We report glacial varves in the sediment of Lake Xinluhai, Tibetan Plateau. Independent data of Cs-137 and Pb-210 indicate that these are annually deposited varves. Varves appear as rhythmic units of light-colored silt layer capped by a dark clay layer under microscope. Varve thickness in Lake Xinluhai is sensitive to precipitation because sediment accumulation is strongly affected by monsoon rainfall in the area. A general decreasing trend can be observed in the varve thickness over the past 160 years. Spectral analyses of the varve record are dominated by cycles which are similar to ENSO periodicities. It implies that the decreasing trend of the South Asia monsoon may be linking with ENSO. Spatially, the decreasing trend can be observed across different proxy records in the south of the Tibetan Plateau. Although arguments still remain for the dynamic mechanisms and spatial rainfall difference, the South Asian summer monsoon could be weakened due to rising temperatures.
WOS关键词ANNUALLY-LAMINATED SEDIMENTS ; NORTHERN ELLESMERE ISLAND ; BRITISH-COLUMBIA ; ICE CORES ; COAST MOUNTAINS ; TEMPERATURE VARIABILITY ; LACUSTRINE SEDIMENTS ; ENVIRONMENTAL-CHANGE ; BOTTOM SEDIMENTS ; CLIMATE-CHANGE
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000286757000001
出版者AMER GEOPHYSICAL UNION
资助机构National Basic Research Program of China (973 Program)(2010CB950201) ; National Basic Research Program of China (973 Program)(2010CB950201) ; National Natural Science Foundation of China(40571148 ; National Natural Science Foundation of China(40571148 ; 4032531002) ; 4032531002) ; National Basic Research Program of China (973 Program)(2010CB950201) ; National Basic Research Program of China (973 Program)(2010CB950201) ; National Natural Science Foundation of China(40571148 ; National Natural Science Foundation of China(40571148 ; 4032531002) ; 4032531002) ; National Basic Research Program of China (973 Program)(2010CB950201) ; National Basic Research Program of China (973 Program)(2010CB950201) ; National Natural Science Foundation of China(40571148 ; National Natural Science Foundation of China(40571148 ; 4032531002) ; 4032531002) ; National Basic Research Program of China (973 Program)(2010CB950201) ; National Basic Research Program of China (973 Program)(2010CB950201) ; National Natural Science Foundation of China(40571148 ; National Natural Science Foundation of China(40571148 ; 4032531002) ; 4032531002)
源URL[http://ir.iggcas.ac.cn/handle/132A11/73476]  
专题中国科学院地质与地球物理研究所
通讯作者Chu, Guoqiang
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China
3.Natl Res Ctr Geoanal, Beijing 100037, Peoples R China
推荐引用方式
GB/T 7714		 Chu, Guoqiang,Sun, Qing,Yang, Ke,et al. Evidence for decreasing South Asian summer monsoon in the past 160 years from varved sediment in Lake Xinluhai, Tibetan Plateau[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2011,116.
APA Chu, Guoqiang.,Sun, Qing.,Yang, Ke.,Li, Aiguo.,Yu, Xiaohan.,...&Liu, Qiang.(2011).Evidence for decreasing South Asian summer monsoon in the past 160 years from varved sediment in Lake Xinluhai, Tibetan Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,116.
MLA Chu, Guoqiang,et al."Evidence for decreasing South Asian summer monsoon in the past 160 years from varved sediment in Lake Xinluhai, Tibetan Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 116(2011).

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来源：地质与地球物理研究所

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