Investigation of precipitation concentration and trends and their potential drivers in the major river basins of Central Asia

doi:10.1016/j.atmosres.2020.105128

	Investigation of precipitation concentration and trends and their potential drivers in the major river basins of Central Asia
	Yang, Peng 1; Zhang, Yongyong 2; Xia, Jun 2,3; Sun, Shangxin 4
刊名	ATMOSPHERIC RESEARCH
	2020-11-15
卷号	245 页码:18
关键词	Climate Change Precipitation Concentration Teleconnection Indices Central Asia Abrupt Change
ISSN号	0169-8095
DOI	10.1016/j.atmosres.2020.105128
通讯作者	Zhang, Yongyong(zhangyy003@igsnrr.ac.cn)
英文摘要	Understanding temporal and spatial changes in precipitation has far-reaching implications for watershed development and risk assessment under global climate change. In our study, temporal and spatial variability in precipitation concentration (PC) in Central Asia (CA) from 1980 to 2017, measured with the precipitation concentration index (PCI) and Gini Coefficient (GC), was analyzed using interpolated precipitation from the Climate Prediction Center (CPC) and National Centers for Environmental Prediction (NCEP). The results showed that: (1) interpolated precipitation increased significantly, with significant mutations (P < .5) mainly concentrated between 2000 and 2010; (2) the spatial distribution of the CPC PCI was opposite to that of the NCEP PCI, and fluctuations in CPC GC were larger than that of the NCEP, which indicated that the precipitation data from NCEP was more uniform over the year; (3) for two of three interpolation methods, CPC PC displayed significant mutations in southern CA between 1985 and 2005, while significant (P < .05) mutations in NCEP PC were relatively concentrated in southern CA between 1987 and 2005; (4) although the El Nino Modoki Index (EMI), Pacific Decadal Oscillation (PDO), Nino 3.4, and Southern Oscillation Index (SOI) displayed resonance relationships with CPC PCI, there were no significant abrupt changes in the resonance correlation. In the NCEP data, EMI, PDO, Nino 3.4, and North Atlantic Oscillation (NAO) led to mutations in the resonance relationship with PCI. Our research proved that the change in PC in CA had closely relationship with some teleconnection indices.
资助项目	Foundation: Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20040302] ; Youth Fund for Humanities and Social Science Research of the Ministry of Education[20YJCZH207]
WOS关键词	CLIMATE-CHANGE ; SPATIAL-DISTRIBUTION ; ARID REGION ; TEMPORAL DISTRIBUTION ; CONCENTRATION INDEX ; NORTHWEST CHINA ; ANNUAL RAINFALL ; SUMMER MONSOON ; WATER STORAGE ; FLOW REGIMES
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	ELSEVIER SCIENCE INC
WOS记录号	WOS:000567779300002
资助机构	Foundation: Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Fund for Humanities and Social Science Research of the Ministry of Education
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/156851]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Yongyong
作者单位	1.China Univ Geosci, Sch Geog & Informat Engn, Wuhan 430074, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 3.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430000, Peoples R China 4.Aluminum Corp, China Mineral Resources Management Dept, Beijing 100082, Peoples R China
推荐引用方式 GB/T 7714	Yang, Peng,Zhang, Yongyong,Xia, Jun,et al. Investigation of precipitation concentration and trends and their potential drivers in the major river basins of Central Asia[J]. ATMOSPHERIC RESEARCH,2020,245:18.
APA	Yang, Peng,Zhang, Yongyong,Xia, Jun,&Sun, Shangxin.(2020).Investigation of precipitation concentration and trends and their potential drivers in the major river basins of Central Asia.ATMOSPHERIC RESEARCH,245,18.
MLA	Yang, Peng,et al."Investigation of precipitation concentration and trends and their potential drivers in the major river basins of Central Asia".ATMOSPHERIC RESEARCH 245(2020):18.