气候变化领域集成服务门户(CCPortal): Interdecadal change in the effect of spring soil moisture over the indo-China peninsula on the following summer precipitation over the yangtze river Basin

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DOI	10.1175/JCLI-D-19-0754.1
	Interdecadal change in the effect of spring soil moisture over the indo-China peninsula on the following summer precipitation over the yangtze river Basin
	Chujie G.A.O.; Gen L.I.; Chen H.; Hong Y.A.N.
发表日期	2020
ISSN	0894-8755
起始页码	7063
结束页码	7082
卷号	33 期号:16
英文摘要	The land surface energy exchange over the Indo-China Peninsula (ICP) is important for regulating regional weather and climate. This work investigates the effect of spring soil moisture (SM) over the ICP on the following summer precipitation over the Yangtze River basin (YRB) during 1961-2010. The results show that the spring SM over the ICP has a significant negative correlation with the following summer YRB precipitation. However, this relationship experiences an obvious interdecadal change with a much stronger correlation in the epoch before the early 1990s (1961-91) than in the later decades (1992-2010). In spring, an abnormally lower SM over the ICP could induce less surface evapotranspiration, increasing local temperature until the summer. Before the 1990s, the resultant anomalous ICP heating raises the local geopotential height, resulting in an excessive westward extension of the western Pacific subtropical high (WPSH). Accordingly, the enhanced southwesterly summer monsoon would transport more moisture to the YRB, intensifying the mei-yu front and local precipitation. In the early 1990s, the East Asian summer monsoon underwent an abrupt change with an interdecadal westward extension of the climatic WPSH. Consequently, the similar abnormal ICP surface heating induced by the anomalous SM would have different influences on the monsoonal circulation, causing a much weaker effect on the YRB precipitation in the recent decades. © 2020 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Atmospheric thermodynamics; Watersheds; East Asian summer monsoon; Geo-potential heights; Interdecadal changes; Local temperature; Negative correlation; Summer precipitation; Surface evapotranspiration; Yangtze River basin; Soil moisture; decadal variation; land surface; precipitation (climatology); river basin; soil moisture; spring (season); summer; surface energy; China; Indochina; Yangtze Basin; Citrus maxima
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171175
作者单位	College of Oceanography, Key Laboratory of Ministry of Education for Coastal Disaster and Protection, Key Laboratory of Marine Hazards Forecasting, Ministry of Natural Resources, Hohai University, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China; Key Laboratory of Meteorological Disaster, Ministry of Education, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, China; College of Oceanography, Key Laboratory of Ministry of Education for Coastal Disaster and Protection, Key Laboratory of Marine Hazards Forecasting, Ministry of Natural Resources, Hohai University, Nanjing, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, China; Key Laboratory of Meteorological Disaster, Ministry of Education, Collaborative Innovation Center o...
推荐引用方式 GB/T 7714	Chujie G.A.O.,Gen L.I.,Chen H.,et al. Interdecadal change in the effect of spring soil moisture over the indo-China peninsula on the following summer precipitation over the yangtze river Basin[J],2020,33(16).
APA	Chujie G.A.O.,Gen L.I.,Chen H.,&Hong Y.A.N..(2020).Interdecadal change in the effect of spring soil moisture over the indo-China peninsula on the following summer precipitation over the yangtze river Basin.Journal of Climate,33(16).
MLA	Chujie G.A.O.,et al."Interdecadal change in the effect of spring soil moisture over the indo-China peninsula on the following summer precipitation over the yangtze river Basin".Journal of Climate 33.16(2020).