干旱区生态环境知识资源中心(Arid): Historical analysis (1981-2017) of drought severity and magnitude over a predominantly arid region of Pakistan

Arid

DOI	10.3354/cr01568
	Historical analysis (1981-2017) of drought severity and magnitude over a predominantly arid region of Pakistan
	Hina, Saadia 1,2,3; Saleem, Farhan 2,4
通讯作者	Hina, Saadia
来源期刊	CLIMATE RESEARCH
ISSN	0936-577X
EISSN	1616-1572
出版年	2019
卷号	78 期号:3 页码:189-204
英文摘要	Droughts are one of the multifaceted meteorological disasters affecting agriculture, livestock and water resources worldwide. Pakistan has a semiarid climate system with a high degree of interannual rainfall variability. This study evaluates the applicability and comparison of 3 drought indices (deciles index [DI], standardized precipitation index [SPI] and reconnaissance drought index [RDI]) in Pakistan. Monthly rainfall and temperature data (1981-2017) from 30 weather stations were used to analyze the current status of drought occurrence in terms of severity and magnitude. A nonparametric Mann-Kendall test and Sen's slope estimates were applied on drought indices to determine the statistical significance and magnitude of the trend. The DI captured the dry episodes in the region well, as Baluchistan and Sindh provinces have been seen to be more susceptible to droughts. The indices of SPI and RDI were well correlated at 3, 6, 9 and 12 mo timescales. Province-level analysis revealed the highest number of drought years during the 3 mo timescale and the lowest number of drought years during the 12 mo timescale. Overall, a linearly increasing trend of SPI and RDI (towards wetness) was observed, whereas the province-level analysis showed a statistically significant trend at the 95% confidence level for Khyber Pakhtunkhwa, Punjab and Sindh in the long-term drought analysis. Moreover, analyses of historical drought years and their intensity have been investigated and compared with a recent long drought episode (1999-2002). The analysis of historical drought events highlights the challenging nature of drought management in Pakistan. The outcomes of this study would help water resource managers to investigate drought response measures for drought preparedness in the country.
英文关键词	Drought indices Severity Trend analysis Climate change Pakistan
类型	Article
语种	英语
国家	Peoples R China ; Pakistan
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000487119700001
WOS关键词	CLIMATE-CHANGE ; SISTAN REGION ; METEOROLOGICAL INDEXES ; DUST ACTIVITY ; PRECIPITATION ; TRENDS ; IMPACTS ; TEMPERATURE ; 20TH-CENTURY ; SEASONALITY
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
来源机构	中国科学院大气物理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214926
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modelling Atmospher Sci & Geo, Beijing 100029, Peoples R China; 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China; 3.Govt Coll Univ Faisalabad, Dept Environm Sci & Engn, Faisalabad 38000, Pakistan; 4.Chinese Acad Sci, Int Ctr Climate & Environm Sci, Inst Atmospher Phys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Hina, Saadia,Saleem, Farhan. Historical analysis (1981-2017) of drought severity and magnitude over a predominantly arid region of Pakistan[J]. 中国科学院大气物理研究所,2019,78(3):189-204.
APA	Hina, Saadia,&Saleem, Farhan.(2019).Historical analysis (1981-2017) of drought severity and magnitude over a predominantly arid region of Pakistan.CLIMATE RESEARCH,78(3),189-204.
MLA	Hina, Saadia,et al."Historical analysis (1981-2017) of drought severity and magnitude over a predominantly arid region of Pakistan".CLIMATE RESEARCH 78.3(2019):189-204.