中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Decreasing Asian summer monsoon intensity after 1860 AD in the global warming epoch

文献类型:期刊论文

作者Hai Xu;  Yetang Hong;  Bin Hong
刊名Climate Dynamics
出版日期2012
卷号39期号:7-8页码:2079-2088
关键词Hongyuan tree Ring d18o Indian Summer Monsoon
英文摘要

The trend of the Indian summer monsoon (ISM) intensity and its nature during the past 100 and 200 years still remain unclear. In this study we reconstructed the ISM intensity during the past 270 years from tree ring δ18O at Hongyuan, eastern edge of the Tibet Plateau. The monsoon failures inferred from δ18Otree ring correlate well with those recorded in ice cores, speleothem, and historical literature sources. 22.6, 59.0, and 110.9-years frequency components in the Hongyuan δ18Otree ring series, which may be the responses to solar activities, synchronize well with those recorded in other ISM indices. A notable feature of the reconstructed ISM intensity is the gradually decreasing trend from about 1860 to the present, which is inversely related to the increasing temperature trend contemporaneously. Such “decreasing ISM intensity–increasing temperature” tendency can also be supported by ice core records and meteorological records over a wide geographic extension. The decrease in sea surface temperature gradient between tropical and north Indian Ocean, and the decrease in land-sea thermal contrast between tropical Indian Ocean and “Indian sub-continent–western Himalaya” are possibly responsible for the observed decreasing ISM trend.

语种英语
源URL[http://ir.gyig.ac.cn/handle/42920512-1/11008]  
专题地球化学研究所_环境地球化学国家重点实验室
作者单位1.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Fenghui South Road, #10, High Tech Zone, Xi’an 710075, Shaanxi Province, China
推荐引用方式
GB/T 7714
Hai Xu;Yetang Hong;Bin Hong. Decreasing Asian summer monsoon intensity after 1860 AD in the global warming epoch[J]. Climate Dynamics,2012,39(7-8):2079-2088.
APA Hai Xu;Yetang Hong;Bin Hong.(2012).Decreasing Asian summer monsoon intensity after 1860 AD in the global warming epoch.Climate Dynamics,39(7-8),2079-2088.
MLA Hai Xu;Yetang Hong;Bin Hong."Decreasing Asian summer monsoon intensity after 1860 AD in the global warming epoch".Climate Dynamics 39.7-8(2012):2079-2088.

入库方式: OAI收割

来源:地球化学研究所

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