Abstract
In addition to the uncontrolled and rapid urbanization, irregular rainfall causes natural calamities like overflood. In an effort to stop the loses caused by these floods and to reduce their damage, it is needful to model the streams made in areas with intense urbanization and creating flood maps, which will create a suitable environment for investigations. It is vitally important to work on the computation of flood flows and the making distribution maps. Birecik basin hydrological and hydraulic model was created in this context. Data such as basin area, elevation, slope, relief, land use, soil type and stream paths were modeled in ArcMap 10.2 environment. Then, HEC-GeoRAS and Hec-Ras techniques were used for hydrological and hydraulic modeling, respectively. Birecik reclamation creek was approached holistically from a geographical point of view, and the factors affecting the flood (such as precipitation, slope, land use-vegetation, soil, proximity to river networks) were ranked among themselves. These were reclassified according to the data obtained in the AHP application and a flood risk analysis map was created in the Geographical Information Systems environment.
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