Asymmetric Effect of El Nino-Southern Oscillation on the Spring Precipitation over South China

doi:10.3390/atmos12030391

	Asymmetric Effect of El Nino-Southern Oscillation on the Spring Precipitation over South China
	Xu, Bei 1,7,8; Li, Gen 6,8; Gao, Chujie 8; Yan, Hong 7; Wang, Ziqian 4,5,6; Li, Yang 3; Zhu, Siguang 2
刊名	ATMOSPHERE
	2021-03-01
卷号	12 期号:3 页码:14
关键词	spring precipitation South China El Niñ o atmospheric circulation seasonal prediction
DOI	10.3390/atmos12030391
通讯作者	Li, Gen(ligen@hhu.edu.cn)
英文摘要	South China is one of the most densely populated and agriculture-based regions in China. Local spring precipitation is crucial to the people's livelihood and social economic development. Using the observed and reanalysis datasets for the period 1958-2019, this study revealed an asymmetric effect of El Nino-Southern Oscillation (ENSO) on the following spring precipitation over South China. During the years with positive ENSO phases, a strong positive correlation between spring precipitation and the preceding winter ENSO sea surface temperature (SST) anomalies existed over Guangdong province. For the years with negative ENSO phases, such a strong positive correlation shifts westwards to Guangxi province. To be specific, the El Nino events usually result in a precipitation surplus in the decaying spring over Guangdong province, while the La Nina events usually lead to a precipitation deficit in the decaying spring over Guangxi province. This is attributed to the nonlinear effects of ENSO on the atmospheric circulation. Compared with El Nino, the abnormal center of La Nina evidently extends westwards, inducing a westward movement of the anomalous low-level atmospheric circulation, which eventually results in a westward-shifted effect on the following spring precipitation over South China. Our findings emphasize the nonlinear responses of spring precipitation over South China to ENSO. This has important implications for the seasonal climate predictions over South China.
资助项目	Start-up Research Fund for the High-level Talents of Jingling Institute of Technology[jit-b-202114] ; Fundamental Research Funds for the Central Universities[B210201015] ; Natural Science Foundation of China[41905054] ; Natural Science Foundation of China[41905075] ; Natural Science Foundation of China[41831175] ; Natural Science Foundation of China[41975080] ; China Postdoctoral Science Foundation[2020T130168] ; China Postdoctoral Science Foundation[2018M632335] ; Open Research Fund of the State Key Laboratory of Loess and Quaternary Geology of China[SKLLQG2035]
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	MDPI
WOS记录号	WOS:000633351000001
资助机构	Start-up Research Fund for the High-level Talents of Jingling Institute of Technology ; Fundamental Research Funds for the Central Universities ; Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Open Research Fund of the State Key Laboratory of Loess and Quaternary Geology of China
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/16201]
专题	地球环境研究所_古环境研究室
通讯作者	Li, Gen
作者单位	1.Jingling Inst Technol, Coll Intelligent Sci & Control Engn, Nanjing 210000, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Sch Atmospher Sci, Nanjing 210000, Peoples R China 3.Jiangsu Meteorol Observ, Nanjing 210000, Jiangsu, Peoples R China 4.Sun Yat Sen Univ, Guangdong Prov Key Lab Climate Change & Nat Disas, Zhuhai 519082, Peoples R China 5.Sun Yat Sen Univ, Sch Atmospher Sci, Zhuhai 519082, Peoples R China 6.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai 519082, Peoples R China 7.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710000, Peoples R China 8.Hohai Univ, Key Lab Marine Hazards Forecasting, Minist Educ Coastal Disaster & Protect, Coll Oceanog,Minist Nat Resources,Key Lab, Nanjing 210098, Peoples R China
推荐引用方式 GB/T 7714	Xu, Bei,Li, Gen,Gao, Chujie,et al. Asymmetric Effect of El Nino-Southern Oscillation on the Spring Precipitation over South China[J]. ATMOSPHERE,2021,12(3):14.
APA	Xu, Bei.,Li, Gen.,Gao, Chujie.,Yan, Hong.,Wang, Ziqian.,...&Zhu, Siguang.(2021).Asymmetric Effect of El Nino-Southern Oscillation on the Spring Precipitation over South China.ATMOSPHERE,12(3),14.
MLA	Xu, Bei,et al."Asymmetric Effect of El Nino-Southern Oscillation on the Spring Precipitation over South China".ATMOSPHERE 12.3(2021):14.