干旱区生态环境知识资源中心(Arid): Predicting Agricultural Water Shortage in Karkheh Basin, Iran

Arid

DOI	10.1007/s40996-023-01099-6
	Predicting Agricultural Water Shortage in Karkheh Basin, Iran
	Jabalameli, Ali; Saghafian, Bahram; Zolfagharpour, Farshid
通讯作者	Saghafian, B
来源期刊	IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF CIVIL ENGINEERING
ISSN	2228-6160
EISSN	2364-1843
出版年	2023
卷号	47 期号:5 页码:3175-3184
英文摘要	Drought is a natural disaster with creeping cumulative effect. To reduce drought-related losses, water resources management strategies in arid and semi-arid regions are of great importance. The objective of this study was to predict agricultural water shortage based on development of a Drought Early Warning System (DEWS) consisting of hydrological indicators for monitoring, forecasting, and determining the level of water shortage for allocated agricultural water. More specifically, the DEWS involves forecasting of drought, water shortage, and drought alert index. The results in the Karkheh river basin in southwest Iran showed that the 3-month standardized hydrological drought index (SHDI-3) can adequately characterize drought severity in the study region. SHDI-3 was then divided into five classes so that the next month drought class was predicted based on the SHDI-3 of preceding and current months using support vector machine. Using K-medoids algorithm and the correlation between consequent months, agricultural water shortages were predicted. The overall accuracy, underestimation error, overestimated error, and the risk index were 0.81, 0.08, 0.11, and 0.7%, respectively. As a result, the monthly flow and demand variables were good predictors for prediction of upcoming water shortage. The findings of this study improve understanding of drought impacts on meeting agricultural water demands and to mitigate the present and upcoming water shortage consequences.
英文关键词	Drought early warning system Support vector machines Agricultural water shortage Karkheh basin
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000986000500001
WOS关键词	RIVER-BASIN ; DROUGHT ; SYSTEMS
WOS类目	Engineering, Civil
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/2XILL650/397062
推荐引用方式 GB/T 7714	Jabalameli, Ali,Saghafian, Bahram,Zolfagharpour, Farshid. Predicting Agricultural Water Shortage in Karkheh Basin, Iran[J],2023,47(5):3175-3184.
APA	Jabalameli, Ali,Saghafian, Bahram,&Zolfagharpour, Farshid.(2023).Predicting Agricultural Water Shortage in Karkheh Basin, Iran.IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF CIVIL ENGINEERING,47(5),3175-3184.
MLA	Jabalameli, Ali,et al."Predicting Agricultural Water Shortage in Karkheh Basin, Iran".IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY-TRANSACTIONS OF CIVIL ENGINEERING 47.5(2023):3175-3184.