干旱区生态环境知识资源中心(Arid): Analysis of changes in drought and terrestrial water storage in the Tarim River Basin based on principal component analysis

Arid

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
通讯作者	Yang, Peng
来源期刊	HYDROLOGY RESEARCH
ISSN	0029-1277
EISSN	2224-7955
出版年	2019
卷号	50 期号:2 页码:761-777
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.
英文关键词	drought change principal component analysis Tarim River Basin teleconnection indices terrestrial water storage
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000466557300022
WOS关键词	PRECIPITATION EXTREMES ; CLIMATE-CHANGE ; ARID REGION ; CHINA ; TEMPERATURE ; PROBABILITY
WOS类目	Water Resources
WOS研究方向	Water Resources
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216224
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]. 中国科学院地理科学与资源研究所,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.