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Information Journal Paper

Title

Spatial Analysis of Flood Hazard in Nirchay River Basin Using HEC-HMS Model and and fuzzy logic

Pages

  79-103

Keywords

Geographic information system (GIS) 

Abstract

 Floods are one of the most abundant and destructive natural disasters that every year are caused heavy losses of life and property. Due to human activity in river systems and construction in rivers, flood damage has an upward trend. One of the most important actions to reduce flood damage is the provision of flood hazard zoning maps and their use in spatial planning. In this study, the risk of flood in the Nirchay River Basin that located Ardebil province was investigated. For this purpose, the HEC-HMS model was used to simulate rainfall-runoff and to identify flood zones and fuzzy logic in order to overlay the layers and prepare a flood hazard zoning map. The simulation results show the high performance of the HEC-HMS model in simulating rainfall-runoff of the Nirchay River Basin and estimating peak flood discharges. Rainfall conversion to runoff at the Nirchay River Basin controlled by slope and land-use. The most runoff height and peak flow in Nirchay River Basin are located in the upstream sub-basins. This is due to the steep, low permeability soil, frequency impervious surfaces and high CN. The combination of layers using fuzzy logic has shown that about 8. 6% of the surface of the basin are located with a high risk of flooding. These zones are located mainly on the floodplain of the Nirchay Basin. Due to the Low valley width and low slope, these lands are always at flood risk. Most settlements in the study area are located at downstream of the basin. This has increased the risk of flooding.

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    • Cite

    APA: Copy

    Sfandyary dorabad, Fariba, Kheirizade arough, Mansour, & RAHIMI, MASOUD. (2022). Spatial Analysis of Flood Hazard in Nirchay River Basin Using HEC-HMS Model and and fuzzy logic. JOURNAL OF GEOGRAPHICAL SCIENCES, 22(66 ), 79-103. SID. https://sid.ir/paper/962376/en

    Vancouver: Copy

    Sfandyary dorabad Fariba, Kheirizade arough Mansour, RAHIMI MASOUD. Spatial Analysis of Flood Hazard in Nirchay River Basin Using HEC-HMS Model and and fuzzy logic. JOURNAL OF GEOGRAPHICAL SCIENCES[Internet]. 2022;22(66 ):79-103. Available from: https://sid.ir/paper/962376/en

    IEEE: Copy

    Fariba Sfandyary dorabad, Mansour Kheirizade arough, and MASOUD RAHIMI, “Spatial Analysis of Flood Hazard in Nirchay River Basin Using HEC-HMS Model and and fuzzy logic,” JOURNAL OF GEOGRAPHICAL SCIENCES, vol. 22, no. 66 , pp. 79–103, 2022, [Online]. Available: https://sid.ir/paper/962376/en

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