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Comprehensive assessment of drought risk in the arid region of Northwest China based on the global palmer drought severity index gridded data
Yang, Peng1,2; Xia, Jun1,3; Zhang, Yongyong1; Zhan, Chesheng1; Qiao, Yunfeng2,4
2018-06-15
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume627Pages:951-962
Corresponding AuthorXia, Jun(xiaj@igsnrr.ac.cn)
AbstractDroughts are extremely widespread natural disasters, which cause the most severe losses among natural disasters. The comprehensive drought risk in Northwest China (NWC) was evaluated based on the self-calibrating (SC) Palmer Drought Severity Index (PDSI) and copula method. The major conclusions are the following: (1) based on the rotated empirical orthogonal function (REOF), a significant consistency in the spatial distribution of the monthly averaged SC-PDSIwas observed inNWC, especially in the subregions Inner Mongolia Plateau (IM), Hexi Corridor (HX), and Qiangtang Plateau (QT); (2) the largest frequency was obtained for slight drought and slight wet conditions, while extremedrought and extremewet showed the lowest values; (3) with respect to the PDSI-th, the Clayton, Arch12, Arch12, Arch12, Arch12, and Frank played the major roles in the copula weight in the subregions IM, HX, Qinghai River Basin (QH), QT, North Xinjiang (NXJ), and South Xinjiang (SXJ), respectively. In terms of PDSI-pm, Arch12, Clayton, Gaussian, Arch12, Clayton, and Clayton dominated the weights of multi-copula functions in the regions IM, HX, QH, QT, NXJ, and SXJ, respectively; and (4) the frequency and probability of droughts in each area differed. The least drought events occurred in the QT and the mostemerged in the HX for SC-PDSI. (C) 2018 Published by Elsevier B.V.
Keyworddrought duration drought severity probability copula REOF NWC
DOI10.1016/j.scitotenv.2018.01.234
WOS KeywordWEI RIVER-BASIN ; HYDROLOGICAL DROUGHT ; ARCHIMEDEAN COPULAS ; CLIMATE-CHANGE ; PRECIPITATION ; MANAGEMENT
Indexed BySCI
Language英语
Funding ProjectNational Basic Research Program of China (973 Program)[2015CB452701] ; National Natural Science Foundation of China[41571019]
Funding OrganizationNational Basic Research Program of China (973 Program) ; National Natural Science Foundation of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000431848500091
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/54759
Collection中国科学院地理科学与资源研究所
Corresponding AuthorXia, Jun
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, 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.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Yang, Peng,Xia, Jun,Zhang, Yongyong,et al. Comprehensive assessment of drought risk in the arid region of Northwest China based on the global palmer drought severity index gridded data[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,627:951-962.
APA Yang, Peng,Xia, Jun,Zhang, Yongyong,Zhan, Chesheng,&Qiao, Yunfeng.(2018).Comprehensive assessment of drought risk in the arid region of Northwest China based on the global palmer drought severity index gridded data.SCIENCE OF THE TOTAL ENVIRONMENT,627,951-962.
MLA Yang, Peng,et al."Comprehensive assessment of drought risk in the arid region of Northwest China based on the global palmer drought severity index gridded data".SCIENCE OF THE TOTAL ENVIRONMENT 627(2018):951-962.
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