干旱区生态环境知识资源中心(Arid): Watershed prioritization for the identification of spatial hotspots of flood risk using the combined TOPSIS-GIS based approach: a case study of the Jarahi-Zohre catchment in Southwest Iran

Arid

DOI	10.14712/23361980.2021.6
	Watershed prioritization for the identification of spatial hotspots of flood risk using the combined TOPSIS-GIS based approach: a case study of the Jarahi-Zohre catchment in Southwest Iran
	Shirani, Koursh; Zakerinejad, Reza
通讯作者	Zakerinejad, R (corresponding author), Univ Isfahan, Fac Geog Sci & Planning, Esfahan, Iran.
来源期刊	AUC GEOGRAPHICA
ISSN	0300-5402
EISSN	2336-1980
出版年	2021
卷号	56 期号:1 页码:120-128
英文摘要	Flash flooding caused by excessive rainfall in a short period of time is one of the worst environmental hazards, especially in arid and semi-arid regions. Watershed prioritisation identifies and ranks the different watersheds in a catchment based on multiple parameters, which play a role in the land and water degradation. This article deals with the prioritization of 24 sub-catchments in the Jarahi-Zohre catchment in southwest Iran by applying the mixed multivariate linear model of TOPSIS. Morphometric parameters, such as the constant of channel maintenance, drainage density, ruggedness number, infiltration index, stream power index, stream frequency, slope, drainage texture rate, relief rate, form factor, bifurcation ratio, as well as the topographic wetness index, were used as TOPSIS input data, along with precipitation information. The results obtained from the weighting analysis show that ruggedness number, slope and rainfall information have the largest impact on flood events. The sub-catchments Seidyon, Emamzadeh Jafar, and Takht Deraza have a high flood risk and should be given the highest priority for soil and water conservation measures. To validate the results, the prioritization scheme was compared to the flood events in recent years.
英文关键词	morphometry flood risk TOPSIS GIS
类型	Article
语种	英语
开放获取类型	DOAJ Gold
收录类别	ESCI
WOS记录号	WOS:000638262900010
WOS类目	Geography
WOS研究方向	Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352742
作者单位	[Shirani, Koursh] Agr Res Educ & Extens Org, Soil Conservat & Watershed Management Res Inst, Tehran, Iran; [Zakerinejad, Reza] Univ Isfahan, Fac Geog Sci & Planning, Esfahan, Iran
推荐引用方式 GB/T 7714	Shirani, Koursh,Zakerinejad, Reza. Watershed prioritization for the identification of spatial hotspots of flood risk using the combined TOPSIS-GIS based approach: a case study of the Jarahi-Zohre catchment in Southwest Iran[J],2021,56(1):120-128.
APA	Shirani, Koursh,&Zakerinejad, Reza.(2021).Watershed prioritization for the identification of spatial hotspots of flood risk using the combined TOPSIS-GIS based approach: a case study of the Jarahi-Zohre catchment in Southwest Iran.AUC GEOGRAPHICA,56(1),120-128.
MLA	Shirani, Koursh,et al."Watershed prioritization for the identification of spatial hotspots of flood risk using the combined TOPSIS-GIS based approach: a case study of the Jarahi-Zohre catchment in Southwest Iran".AUC GEOGRAPHICA 56.1(2021):120-128.