Strengthening Influence of El Nino on the Following Spring Precipitation over the Indochina Peninsula

doi:10.1175/JCLI-D-20-0940.1

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Strengthening Influence of El Nino on the Following Spring Precipitation over the Indochina Peninsula
	Li, Gen 1,2; Gao, Chujie 1,2,3; Xu, Bei 4,5; Lu, Bo 6; Chen, Haishan 7,8; Ma, Hedi 9; Li, Xing 10
通讯作者	Li, Gen(ligen@hhu.edu.cn) ; Lu, Bo(bolu@cma.gov.cn)
	2021-07-01
发表期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
卷号	34 期号:14 页码:5971-5984
摘要	Significance Statement Spring precipitation variation has profound economic and societal influences for the Indochina Peninsula (ICP) that consists of several agriculture-based countries. Moreover, the local soil moisture anomaly induced by the ICP spring precipitation is an important seasonal predictor for the East Asian summer monsoon and extreme climate. Here this study identifies a strengthening influence of El Nino on the following spring precipitation over the ICP, due to a relatively stronger intensity and longer duration of the El Nino-related warm SST anomalies over the tropical central Pacific since the early 1990s. This may provide an important implication for the seasonal predictions of summer monsoon and extreme climate over East Asia and thus potentially enhance the predictability of regional climate. El Nino is a dominant source of interannual climate variability around the world. Based on the observed and reanalyzed datasets for the period of 1958-2019, this study explores the influence of El Nino on the spring precipitation over the Indochina Peninsula (ICP). The results show that El Nino has a significant negative correlation with the following spring precipitation over the ICP. However, this climatic teleconnection of El Nino was unstable, with an obvious interdecadal strengthening since the early 1990s. During the decaying spring, the El Nino-related sea surface temperature (SST) anomalies would induce an abnormal downward motion along with an anomalous low-level anticyclone over the western North Pacific. Before the early 1990s, such El Nino-induced atmospheric circulation anomalies were located to the east of the ICP, exerting little influence on the spring ICP precipitation. In contrast, since the early 1990s, the abnormal downward motion and anomalous low-level anticyclone extended westward covering the whole ICP, hampering local spring precipitation. This interdecadal change is owing to a relatively stronger intensity and longer duration of the El Nino-related warm SST anomalies over the tropical central Pacific in the epoch after the early 1990s (1992-2019) than in the previous decades (1958-91). Our findings highlight a strengthening effect of El Nino on the following spring climate over the ICP since the early 1990s, which has great implications for the regional climate prediction.
关键词	Precipitation Atmosphere-ocean interaction Climate variability El Nino Interannual variability
DOI	10.1175/JCLI-D-20-0940.1
关键词[WOS]	ASIAN SUMMER MONSOON ; ATMOSPHERE-OCEAN VARIATIONS ; PACIFIC COLD-TONGUE ; WESTERN PACIFIC ; INTERDECADAL VARIATIONS ; ENSO TELECONNECTION ; COMBINATION-MODE ; CLIMATE ; RAINFALL ; PATTERNS
收录类别	SCI ; SCI
语种	英语
资助项目	Natural Science Foundation of China[41975097] ; Natural Science Foundation of China[41831175] ; Natural Science Foundation of China[41905054] ; Natural Science Foundation of China[41861144013] ; Fundamental Research Funds for the Central Universities[B210201015] ; Fundamental Research Funds for the Central Universities[B210201029] ; National Key Research and Development Program of China[2018YFC1506002] ; Start-up Research Fund for the High-level Talents of Jinling Institute of Technology[jit-b-202114] ; Open Research Fund of the State Key Laboratory of Loess and Quaternary Geology of China[SKLLQG2035] ; Open Research Fund of the State Key Laboratory of Tropical Oceanography (South China Sea Institute of Oceanology, Chinese Academy of Sciences)[LTO2110]
WOS研究方向	Meteorology & Atmospheric Sciences
项目资助者	Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; National Key Research and Development Program of China ; Start-up Research Fund for the High-level Talents of Jinling Institute of Technology ; Open Research Fund of the State Key Laboratory of Loess and Quaternary Geology of China ; Open Research Fund of the State Key Laboratory of Tropical Oceanography (South China Sea Institute of Oceanology, Chinese Academy of Sciences)
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000668206100021
出版者	AMER METEOROLOGICAL SOC
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/16820
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Li, Gen; Lu, Bo
作者单位	1.Hohai Univ, Coll Oceanog, Nanjing, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Zhuhai, Zhuhai, Peoples R China 3.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Peoples R China 4.Jinling Inst Technol, Coll Intelligent Sci & Control Engn, Nanjing, Peoples R China 5.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China 6.China Meteorol Adm, Lab Climate Studies & CMA NJU Joint Lab Climate P, Natl Climate Ctr, Beijing, Peoples R China 7.Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Minist Educ, Nanjing, Peoples R China 8.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Peoples R China 9.China Meteorol Adm, Hubei Key Lab Heavy Rain Monitoring & Warning Res, Inst Heavy Rain, Wuhan, Peoples R China 10.Chengdu Univ Informat Technol, Coll Atmospher Sci, Plateau Atmosphere & Environm Key Lab Sichuan Pro, Chengdu, Peoples R China
推荐引用方式 GB/T 7714	Li, Gen,Gao, Chujie,Xu, Bei,et al. Strengthening Influence of El Nino on the Following Spring Precipitation over the Indochina Peninsula[J]. JOURNAL OF CLIMATE,2021,34(14):5971-5984.
APA	Li, Gen.,Gao, Chujie.,Xu, Bei.,Lu, Bo.,Chen, Haishan.,...&Li, Xing.(2021).Strengthening Influence of El Nino on the Following Spring Precipitation over the Indochina Peninsula.JOURNAL OF CLIMATE,34(14),5971-5984.
MLA	Li, Gen,et al."Strengthening Influence of El Nino on the Following Spring Precipitation over the Indochina Peninsula".JOURNAL OF CLIMATE 34.14(2021):5971-5984.