Acquisition of Afrin Bridge Basin Characteristics and Curve Number Methodology via GIS
Abstract
By using remote sensing data, Geographic Information Systems (GIS) provide convenience in determining basin morphology and watershed planning studies. For this aim, the applicability of the Arc-GIS software in the Afrin Bridge Basin by processing the Digital Elevation Model (DEM) data using the hydrological analysis tools and watershed parameters (i.e. boundary, variation of elevation, drainage area, flow network, and slope) were investigated. Additionally, soil and Land Use/Land Cover (LULC) maps were attained using the satellite data from ORNL-DAAC and CORINE with 250-m and 100-m spatial resolution, respectively. By combining these maps and basin characteristics, the Curve Number (CN) values, required parameters for the SCS-CN method used in the rainfall-driven runoff estimations, are mapped over the region. While acquisition of soil, LULC, CN maps and the stream morphology enables the basin to be evaluated together with climatological data, flood risks and flow hydrographs of the region can be determined.
Keywords
Kaynakça
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