Gaziantep ili suyu ihtiyacının karşılanması amacıyla Göksu (Nurhak-Kahramanmaras) havzasının CBS ile hidrolojik modellenmesi

Population projections are significant for managing and planning the research area. This study aims to examine the water need and water consumption of Gaziantep province. In order to determine the future population of Gaziantep city; arithmetic method, geometric method, İlbank method and regression analysis were utilized in the calculations. The optimum trend (increase) line and minimum error (R2) was seen in exponential regression analysis. Düzbağ Dam which is considered to supply drinking water to Gaziantep is not sufficient after then 2044 and in order to supply water to city it is estimated that there will be need for new water resources. Therefore, The State Hydraulic Works (DSİ), Gaziantep Water and Sewerage Administration (GASKİ) and other state corporation should take required precautions. Also the rainfall map was generated by ArcGIS program for whole meteorological stations located in Turkey. Comparing the IDW and Kriging methods the results showed that the best model to generate rain properties map was Ordinary Kriging with spherical and models. In this study GIS-linked interface was created. With this new model users can be delineate the watershed with one step. This model can be used in Python scripting and other models. When on-site measurements are considered, it will be easier to delineate the basin in areas by ArcGIS, where the topographic conditions are difficult.