Assessment of drought evolution characteristics based on a nonparametric and trivariate integrated drought index

doi:10.1016/j.jhydrol.2019.124230

	Assessment of drought evolution characteristics based on a nonparametric and trivariate integrated drought index
	Zhang, Ying 1,4; Huang, Shengzhi 4; Huang, Qiang 4; Leng, Guoyong 2; Wang, Hao 3; Wang, Lu 4
刊名	JOURNAL OF HYDROLOGY
	2019-12-01
卷号	579 页码:12
关键词	Drought Integrated drought index Nonparametric distribution Trivariate empirical frequency The Gringorten point position formula
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2019.124230
通讯作者	Huang, Shengzhi(huangshengzhi7788@126.com)
英文摘要	Drought index is an important tool for drought research. The development of a reliable and simple integrated drought index is a critical step of current drought monitoring and risk assessments. The Gringorten point position formula was adopted to develop a trivariate standardized drought index (TSDI) based on precipitation (meteorology), runoff (hydrology), and soil moisture (agriculture) information in this study. This index can be used to characterize droughts from an integrated meteorological, hydrological, and agricultural point of view, and explore drought evolution characteristics. The possible driving forces of drought were explored by examining the associations between sunspot activities and large-scale atmospheric circulation anomalies. A typical Loess Plateau watershed, the Wei River Basin (WRB), was selected as a case study. Results showed that: 1) the TSDI is better at characterizing real drought conditions than other traditional single-variable indices; although it is similar to the parametric trivariate drought index based on copula function (Serinaldi and Grimaldi., 2007; Yang et al., 2018), it is much simpler to calculate and more suitable for characterizing drought of different regions; 2) the value of integrated drought index gradually increased in all areas, and its change point occurred in the early 1970s and 1990s mainly due to variations in runoff; 3) the evolution of the integrated drought appeared to be strongly influenced by sunspot activities and abnormal atmospheric circulation factors, where sunspots activities are dominant. This study provides a valuable reference for the development of an integrated drought index, which might be applied to local drought monitoring, preparedness and mitigation.
资助项目	National Natural Science Foundation of China[51709221] ; National Key Research and Development Program of China[2017YFC0405900] ; Planning Project of Science and Technology of Water Resources of Shaanxi[2015slkj-27] ; Planning Project of Science and Technology of Water Resources of Shaanxi[2017slkj-19] ; China Postdoctoral Science Foundation[2018M640155] ; Open Research Fund of State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin (China Institute of Water Resources and Hydropower Research)[IWHR-SKL-KF201803] ; Belt and Road Special Foundation of the State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering[2018490711] ; Doctorate Innovation Funding of Xi'an University of Technology[310-252071712]
WOS关键词	SPATIAL-TEMPORAL CHANGES ; CHINA CHANGING PATTERNS ; SOCIOECONOMIC DROUGHT ; SOIL-MOISTURE ; WATER STORAGE ; PRECIPITATION ; VARIABILITY ; VEGETATION ; DYNAMICS ; MODEL
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000500371200088
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; Planning Project of Science and Technology of Water Resources of Shaanxi ; China Postdoctoral Science Foundation ; Open Research Fund of State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin (China Institute of Water Resources and Hydropower Research) ; Belt and Road Special Foundation of the State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering ; Doctorate Innovation Funding of Xi'an University of Technology
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/130128]
专题	中国科学院地理科学与资源研究所
通讯作者	Huang, Shengzhi
作者单位	1.Yellow River Engn Consulting Co Ltd, Zhengzhou 450003, Henan, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China 3.China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100038, Peoples R China 4.Xian Univ Technol, State Key Lab Ecohydraul Northwest Arid Reg China, Xian 710048, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Ying,Huang, Shengzhi,Huang, Qiang,et al. Assessment of drought evolution characteristics based on a nonparametric and trivariate integrated drought index[J]. JOURNAL OF HYDROLOGY,2019,579:12.
APA	Zhang, Ying,Huang, Shengzhi,Huang, Qiang,Leng, Guoyong,Wang, Hao,&Wang, Lu.(2019).Assessment of drought evolution characteristics based on a nonparametric and trivariate integrated drought index.JOURNAL OF HYDROLOGY,579,12.
MLA	Zhang, Ying,et al."Assessment of drought evolution characteristics based on a nonparametric and trivariate integrated drought index".JOURNAL OF HYDROLOGY 579(2019):12.