SIMULATING THE EFFECTS OF LANDUSE CHANGE SCENARIOS ON FLOW HYDROGRAPH USING THE SPATIALLY DISTRIBUTED HYDROLOGICAL MODEL, WETSPA, IN THE DINVAR WATERSHED, KARKHEH, IRAN

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AZINMEHR MARYAM; BAHREMAND ABDOLREZA; KABIR ATENA

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Journal: WATERSHED ENGINEERING AND MANAGEMENT Year:2016 | Volume:7 | Issue:4 Page(s): 500-510

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Title

SIMULATING THE EFFECTS OF LANDUSE CHANGE SCENARIOS ON FLOW HYDROGRAPH USING THE SPATIALLY DISTRIBUTED HYDROLOGICAL MODEL, WETSPA, IN THE DINVAR WATERSHED, KARKHEH, IRAN

Author(s)

AZINMEHR MARYAM | BAHREMAND ABDOLREZA | KABIR ATENA | Issue Writer Certificate

Keywords

GISQ1

DINVAR CACHMENTQ2

LAND USE CHANGE SCENARIOSQ2

THE KARKHEH RIVERQ1

WETSPAQ2

Abstract

The various types of land cover and land use have significant roles and impacts on runoff and flood; but how and to what extent is not clear and highly uncertain. The models are becoming more capable for flood prediction, landuse impacts on floods, and decision making in watershed management. The main objective of this research is to assess the impacts of land use changes on flow hydrograph by means of distributed modeling and GIS. A grid-based spatially distributed hydrologic model, WETSPA, which has been developed at the Department of Hydrology and Hydraulic Engineering of VUB, is used in this research to fulfill the aim. The basic model inputs are a digital elevation model (DEM), land use and soil maps of the study area in GIS raster format, and hydrometeorological data. The model is applied to the Dinvar river basin (1717 km2), and its main tributaries. The Dinvar river located in Kermanshah, is one of the main tributaries of THE KARKHEH RIVER. The model predicts the daily hydrographs with a good accuracy, 66% according to the Nash-Sutcliffe. For assessing the impact of landuse changes on floods, the calibrated model is applied for nine scenarios using the hourly data. The potential of DINVAR CACHMENT, nine landuse change scenarios in GIS was determined and entered the calibrated model for simulation. changes in processes and hydrological parameters were investigated by comparing the output hydrograph of present landuse with simulation result of 9 scenarios. Results show that model simulation is acceptable as for the result of model.

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APA: Copy

AZINMEHR, MARYAM, BAHREMAND, ABDOLREZA, & KABIR, ATENA. (2016). SIMULATING THE EFFECTS OF LANDUSE CHANGE SCENARIOS ON FLOW HYDROGRAPH USING THE SPATIALLY DISTRIBUTED HYDROLOGICAL MODEL, WETSPA, IN THE DINVAR WATERSHED, KARKHEH, IRAN. WATERSHED ENGINEERING AND MANAGEMENT, 7(4 ), 500-510. SID. https://sid.ir/paper/234723/en

Vancouver: Copy

AZINMEHR MARYAM, BAHREMAND ABDOLREZA, KABIR ATENA. SIMULATING THE EFFECTS OF LANDUSE CHANGE SCENARIOS ON FLOW HYDROGRAPH USING THE SPATIALLY DISTRIBUTED HYDROLOGICAL MODEL, WETSPA, IN THE DINVAR WATERSHED, KARKHEH, IRAN. WATERSHED ENGINEERING AND MANAGEMENT[Internet]. 2016;7(4 ):500-510. Available from: https://sid.ir/paper/234723/en

IEEE: Copy

MARYAM AZINMEHR, ABDOLREZA BAHREMAND, and ATENA KABIR, “SIMULATING THE EFFECTS OF LANDUSE CHANGE SCENARIOS ON FLOW HYDROGRAPH USING THE SPATIALLY DISTRIBUTED HYDROLOGICAL MODEL, WETSPA, IN THE DINVAR WATERSHED, KARKHEH, IRAN,” WATERSHED ENGINEERING AND MANAGEMENT, vol. 7, no. 4 , pp. 500–510, 2016, [Online]. Available: https://sid.ir/paper/234723/en

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