Decreasing monsoon precipitation in southwest China during the last 240 years associated with the warming of tropical ocean

doi:10.1007/s00382-016-3171-y

	Decreasing monsoon precipitation in southwest China during the last 240 years associated with the warming of tropical ocean
	Edwards, R. Lawrence 6; Tan, Liangcheng 1,4,5; Cai, Yanjun 1,4; An, Zhisheng 1,4; Cheng, Hai 4,6; Shen, Chuan-Chou 2; Gao, Yongli 3
刊名	CLIMATE DYNAMICS
	2017-03-01
卷号	48 期号:5-6 页码:1769-1778
关键词	Drought Southwest China Tropical Sst El Nino Stalagmite
DOI	10.1007/s00382-016-3171-y
文献子类	Article
英文摘要	Based on an absolutely dated stalagmite delta O-18 record from Yunnan province, China, we reconstructed monsoon precipitation variations in southwest China since 1760 AD with a resolution of about 2 years. Combining the speleothem delta O-18 and observed rainfall records, we find an overall decreasing trend in monsoon precipitation in this region and suggest that the recent drought in 2009-2012 AD has been the driest since 1760 AD. Our speleothem record is consistent with the monsoon precipitation records reconstructed from tree rings in the Nepal Himalaya and southeastern Tibetan Plateau. However, it is anti-correlated with a speleothem record from central India, which confirms the observed anti-phase variations of Indian monsoon precipitation with moistures from the Bay of Bengal and Arabian Sea on multi-decadal to centennial timescales during historical time. The long-term warming of tropical ocean may have caused the decrease of the land-sea thermal gradient and the amount of moisture transported from the Bay of Bengal, which may reduce precipitations in southwest China during the last 240 years. On decadal scale, El NiA"o-like conditions of tropical Pacific sea surface temperature may cause drought in this region. Climate model simulations suggest El Nio-like conditions exist in tropical Pacific under global warming scenarios. As a result, it is crucial to have adaptive strategies to overcome future declines in precipitation and/or drought events in southwest China.
WOS关键词	INDIAN MONSOON ; SUMMER MONSOON ; EL-NINO ; SOUTHERN-OSCILLATION ; VARIABILITY ; RAINFALL ; CLIMATE ; ENSO ; CAVE ; RECONSTRUCTION
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000395060900021
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5497]
专题	地球环境研究所_现代环境研究室
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Natl Taiwan Univ, Dept Geosci, High Precis Mass Spectrometry & Environm Change L, Taipei 106, Taiwan 3.Univ Texas San Antonio, Dept Geol Sci, Ctr Water Res, San Antonio, TX 78249 USA 4.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710054, Peoples R China 5.JCGCS, Beijing 100875, Peoples R China 6.Univ Minnesota, Dept Earth Sci, Minneapolis, MN 55455 USA
推荐引用方式 GB/T 7714	Edwards, R. Lawrence,Tan, Liangcheng,Cai, Yanjun,et al. Decreasing monsoon precipitation in southwest China during the last 240 years associated with the warming of tropical ocean[J]. CLIMATE DYNAMICS,2017,48(5-6):1769-1778.
APA	Edwards, R. Lawrence.,Tan, Liangcheng.,Cai, Yanjun.,An, Zhisheng.,Cheng, Hai.,...&Gao, Yongli.(2017).Decreasing monsoon precipitation in southwest China during the last 240 years associated with the warming of tropical ocean.CLIMATE DYNAMICS,48(5-6),1769-1778.
MLA	Edwards, R. Lawrence,et al."Decreasing monsoon precipitation in southwest China during the last 240 years associated with the warming of tropical ocean".CLIMATE DYNAMICS 48.5-6(2017):1769-1778.