气候变化领域集成服务门户(CCPortal): The salient differences in China summer rainfall response to ENSO: Phases; intensities and flavors

CCPortal

DOI	10.3354/cr01560
	The salient differences in China summer rainfall response to ENSO: Phases; intensities and flavors
	Zhao X.; Rao J.; Mao J.
发表日期	2019
ISSN	0936-577X
起始页码	51
结束页码	67
卷号	78 期号:1
英文摘要	Using monthly precipitation data and the NCEP/NCAR reanalysis dataset, the salient differences in Chinese summer rainfall in response to moderate eastern/central Pacific El Niño (MEPE/MCPE), extreme strong El Niño (SE), and moderate eastern/central Pacific La Niña (MEPL/MCPL) events are investigated. The distribution of Chinese summer rainfall anomalies varies with the phases, intensities and flavors (i.e. eastern/central Pacific patterns) of El Niño-Southern Oscillation (ENSO) events through the general circulation change. On average, the correlation between ENSO and Chinese summer rainfall anomaly is positive in the Yellow River valley and the middle reaches of the Yangtze River, but is negative in East China, part of Northeast China, and South China. The western Pacific subtropical high (WPSH) extends westward and the South Asian High (SAH) extends eastward during the MCPE and SE decaying summers, leading to enhanced upwelling motions and strong water vapor convergence over the Yangtze River valley. As a result, positive rainfall anomalies appear in this region. In contrast, no significant rainfall anomalies form along the Yangtze River valley during the MEPE decaying summer. During La Niña decaying summers and especially the MEPL decaying summer, both the WPSH and SAH shrink. The rainfall anomalies during the MEPL decaying summer exhibit a dipole pattern: dry (wet) to the north (south) of the Yangtze River. However, patches of significant negative rainfall anomalies appear during the MCPL decaying summer. As the maximum SST anomaly center shifts between different ENSO flavors, the anomalous anticyclone/cyclone in the western North Pacific also sways in its zonal position. © Inter-Research 2019 · www.int-res.com
英文关键词	El Niño; La Niña; South Asian High; Summer rainfall; Western Pacific subtropical high
语种	英语
scopus关键词	air-sea interaction; anomaly; convergence; El Nino-Southern Oscillation; general circulation model; high pressure system; La Nina; precipitation intensity; sea surface temperature; subtropical region; summer; upwelling; water vapor; China; Pacific Ocean; Pacific Ocean (North); Yangtze River; Yellow River
来源期刊	Climate Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146939
作者单位	Key Laboratory of Meteorological Disaster, Ministry of Education (KLME), Joint International Research Laboratory of Climate and Environment Change (ILCEC), Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, 210044, China; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China
推荐引用方式 GB/T 7714	Zhao X.,Rao J.,Mao J.. The salient differences in China summer rainfall response to ENSO: Phases; intensities and flavors[J],2019,78(1).
APA	Zhao X.,Rao J.,&Mao J..(2019).The salient differences in China summer rainfall response to ENSO: Phases; intensities and flavors.Climate Research,78(1).
MLA	Zhao X.,et al."The salient differences in China summer rainfall response to ENSO: Phases; intensities and flavors".Climate Research 78.1(2019).