干旱区生态环境知识资源中心(Arid): Evaluating the Characteristics of Multiyear Extreme Droughts in Semi-Arid Regions

Arid

DOI	10.1007/s40710-017-0246-7
	Evaluating the Characteristics of Multiyear Extreme Droughts in Semi-Arid Regions
	Tarawneh, Zeyad; Hyari, Khaled; Katkhuda, Hasan
通讯作者	Tarawneh, Z
来源期刊	ENVIRONMENTAL PROCESSES-AN INTERNATIONAL JOURNAL
ISSN	2198-7491
EISSN	2198-7505
出版年	2017
卷号	4 期号:3 页码:683-696
英文摘要	Following the unconditional definition of drought events, this study presents general mathematical expressions that can be used to evaluate the occurrence probability and the return period of multiyear drought events of extreme magnitude evolved after truncating low order dependent hydrological or meteorological processes. The drought magnitude was fitted using the gamma distribution and the drought run length was defined unconditionally regardless where the run starts as long as it satisfies the continuity. Considering the joint analysis of the drought magnitude and the run length, the characteristics of the multiyear drought of extreme magnitude achieved theoretically was found to match well with empirical results obtained after analyzing the simulated and historical precipitation. After truncating the annual rainy season precipitation for Madaba region in Jordan, the 6-year extreme historical drought that occurred in 1958-1963 was a rare event recurring every 226 years. In the semi-arid region of Madaba, meteorological drought events of a short duration, 2-3 years, and a precipitation deficit of 149 mm or less are frequent events with 7-10 years return period, while events of 4 years or more, tested at deficit threshold of 149 mm, are less frequent events regardless of their magnitude.
英文关键词	Drought Occurrence probability Return period Sustainable resources
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000414368400012
WOS关键词	RECURRENCE ANALYSIS ; SEVERITY ; DURATION ; RISK ; FREQUENCY ; COLORADO ; EUROPE ; JORDAN ; RIVER ; MODEL
WOS类目	Engineering, Environmental
WOS研究方向	Engineering
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/332344
作者单位	[Tarawneh, Zeyad; Hyari, Khaled; Katkhuda, Hasan] Hashemite Univ, Dept Civil Engn, Zarqa 13115, Jordan
推荐引用方式 GB/T 7714	Tarawneh, Zeyad,Hyari, Khaled,Katkhuda, Hasan. Evaluating the Characteristics of Multiyear Extreme Droughts in Semi-Arid Regions[J],2017,4(3):683-696.
APA	Tarawneh, Zeyad,Hyari, Khaled,&Katkhuda, Hasan.(2017).Evaluating the Characteristics of Multiyear Extreme Droughts in Semi-Arid Regions.ENVIRONMENTAL PROCESSES-AN INTERNATIONAL JOURNAL,4(3),683-696.
MLA	Tarawneh, Zeyad,et al."Evaluating the Characteristics of Multiyear Extreme Droughts in Semi-Arid Regions".ENVIRONMENTAL PROCESSES-AN INTERNATIONAL JOURNAL 4.3(2017):683-696.