Development of Water Management Modeling by using GIS in Chirchik River Basin, Uzbekistan

The management of water resources has become a critical need for Chirchik river basin in Uzbekistan due to water deficit and salt damage. Hence, plans must be developed for water efficient use through better management at the river basin level. In this paper, fundamental concept of the proposed water management modeling of the Chirchik river basin and overview of hydrological model using Geomorphology Based Hydrological Model (GBHM). Furthermore, various spatial data such as land-use layers and hydrological layers are developed in this study by conducting latest GIS (Geographical Information System) technology. By extracting ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer) Digital Elevation Model (DEM) and ALOS (Advanced Land Observing Satellite) data on autumn and spring, a series of land-use classification is created using the supervised classification method. For regional-scale hydrological modeling, GBHM as a powerful tool is used to analyze the river basin by utilizing the geomorphological properties data for each catchment and hillslope hydrological processes. As a result, development of spatial modeling is obtained and GIS-based analysis is an effective method to study water management in Chirchik river basin in Uzbekistan.