Abstract
In the Tahlawi River Basin in Diyala Province in eastern Iraq and the corresponding areas in Iran, GIS and remote sensing approaches are used to classify the morphological characteristics of watersheds and assess their characteristics. Morphometric parameters such as aerial and linear aspects of the basin of the Tahlawi River were determined and measured. The drainage pattern of the river is dendritic, and it also stands 6th in the order of river basins. This means that the drainage density flow is medium. The circularity ratio value shows that the basin’s geological components are homogeneous. This study provides important information for the population of the basin in investing its resources for development.
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