气候变化领域集成服务门户(CCPortal): Different influences of southeastern Indian Ocean and western Indian Ocean SST anomalies on eastern China rainfall during the decaying summer of the 2015/16 extreme El Niño

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DOI	10.1175/JCLI-D-19-0777.1
	Different influences of southeastern Indian Ocean and western Indian Ocean SST anomalies on eastern China rainfall during the decaying summer of the 2015/16 extreme El Niño
	Chen J.; Yu J.-Y.; Wang X.; Lian T.
发表日期	2020
ISSN	0894-8755
起始页码	5427
结束页码	5443
卷号	33 期号:13
英文摘要	Previous studies linked the increase of the middle and low reaches of the Yangtze River (MLRYR) rainfall to tropical Indian Ocean warming during extreme El Niños' (e.g., 1982/83 and 1997/98 extreme El Niños) decaying summer. This study finds the linkage to be different for the recent 2015/16 extreme El Niño's decaying summer, during which the above-normal rainfalls over MLRYR and northern China are respectively linked to southeastern Indian Ocean warming and western tropical Indian Ocean cooling in sea surface temperatures (SSTs). The southeastern Indian Ocean warming helps to maintain the El Niño-induced anomalous lower-level anticyclone over the western North Pacific Ocean and southern China, which enhances moisture transport to increase rainfall over MLRYR. The western tropical Indian Ocean cooling first enhances the rainfall over central-northern India through a regional atmospheric circulation, the latent heating of which further excites a midlatitude Asian teleconnection pattern (part of circumglobal teleconnection) that results in an above-normal rainfall over northern China. The western tropical Indian Ocean cooling during the 2015/16 extreme El Niño is contributed by the increased upward latent heat flux anomalies associated with enhanced surface wind speeds, opposite to the earlier two extreme El Niños. © 2020 American Meteorological Society.
英文关键词	Cooling; Heat flux; Rain; Surface waters; Tropics; Atmospheric circulation; Enhanced surface; Moisture transport; Sea surface temperatures; Teleconnection patterns; Tropical Indian ocean; Western indian oceans; Western North Pacific; Oceanography; air-sea interaction; atmospheric circulation; El Nino; latent heat flux; moisture transfer; rainfall; sea surface temperature; summer; teleconnection; temperature anomaly; warming; wind velocity; China; Indian Ocean; Indian Ocean (Southeast); Indian Ocean (West); Pacific Ocean; Pacific Ocean (North); Yangtze River
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/171243
作者单位	State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China; State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, China; Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, China; Innovation Academy of South China Sea Ecology and Environmental Engineering, Chinese Academy of Sciences, Guangzhou, China; Department of Earth System Science, University of California, Irvine, CA, United States
推荐引用方式 GB/T 7714	Chen J.,Yu J.-Y.,Wang X.,et al. Different influences of southeastern Indian Ocean and western Indian Ocean SST anomalies on eastern China rainfall during the decaying summer of the 2015/16 extreme El Niño[J],2020,33(13).
APA	Chen J.,Yu J.-Y.,Wang X.,&Lian T..(2020).Different influences of southeastern Indian Ocean and western Indian Ocean SST anomalies on eastern China rainfall during the decaying summer of the 2015/16 extreme El Niño.Journal of Climate,33(13).
MLA	Chen J.,et al."Different influences of southeastern Indian Ocean and western Indian Ocean SST anomalies on eastern China rainfall during the decaying summer of the 2015/16 extreme El Niño".Journal of Climate 33.13(2020).