Analysis of changes in drought and terrestrial water storage in the Tarim River Basin based on principal component analysis

doi:10.2166/nh.2019.033

	Analysis of changes in drought and terrestrial water storage in the Tarim River Basin based on principal component analysis
	Xia, Jun 1,3,4; Yang, Peng 1,2,3,4; Zhan, Chesheng 1; Qiao, Yunfeng 1
刊名	HYDROLOGY RESEARCH
	2019-04-01
卷号	50 期号:2 页码:761-777
关键词	drought change principal component analysis Tarim River Basin teleconnection indices terrestrial water storage
ISSN号	0029-1277
DOI	10.2166/nh.2019.033
通讯作者	Yang, Peng(yangpenghb@foxmail.com)
英文摘要	Drought is a widespread natural hazard. In this study, the potential factors affecting spatiotemporal changes of drought in the Tarim River Basin (TRB), China, were investigated using the empirical orthogonal function (EOF) and multiple hydro-meteorological indicators such as the standardized precipitation index (SPI), standardized soil moisture index (SSI), and terrestrial water storage (TWS). The following major conclusions were drawn. (1) Inconsistent variations between SPIs/SSIs and TWS in the TRB indicate a groundwater deficit in 2002-2012. (2) The results of EOF indicate that soil moisture in the TRB was significantly affected by precipitation. However, the variations between the EOFs of SSIs and those of TWS were not identical, which indicates that soil water had less effect on TWS than groundwater. (3) Drought evaluations using SPI and SSI showed that a long drought duration occurred over a long accumulation period, whereas a high frequency of drought was related to a short accumulation period. (4) Hydrological features related to extreme soil moisture conditions in the TRB could also be influenced by the El Nino-Southern Oscillation. The findings of this study are significant for use in drought detection and for making water management decisions.
资助项目	National Key R&D Program of China[2017YFA0603702]
WOS关键词	PRECIPITATION EXTREMES ; CLIMATE-CHANGE ; ARID REGION ; CHINA ; TEMPERATURE ; PROBABILITY
WOS研究方向	Water Resources
语种	英语
出版者	IWA PUBLISHING
WOS记录号	WOS:000466557300022
资助机构	National Key R&D Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/59661]
专题	中国科学院地理科学与资源研究所
通讯作者	Yang, Peng
作者单位	1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Wuhan Univ, State Key Lab Water Resources & Hydropower Engn S, Wuhan 430000, Hubei, Peoples R China 4.China Univ Geosci, Sch Geog & Informat Engn, Wuhan 430074, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Xia, Jun,Yang, Peng,Zhan, Chesheng,et al. Analysis of changes in drought and terrestrial water storage in the Tarim River Basin based on principal component analysis[J]. HYDROLOGY RESEARCH,2019,50(2):761-777.
APA	Xia, Jun,Yang, Peng,Zhan, Chesheng,&Qiao, Yunfeng.(2019).Analysis of changes in drought and terrestrial water storage in the Tarim River Basin based on principal component analysis.HYDROLOGY RESEARCH,50(2),761-777.
MLA	Xia, Jun,et al."Analysis of changes in drought and terrestrial water storage in the Tarim River Basin based on principal component analysis".HYDROLOGY RESEARCH 50.2(2019):761-777.