Determining the Optimum Site of Small Dams Using Remote Sensing Techniques and GIS

Nawal K. Ghazal, Salman Rasool Salman

Abstract: The dams regarded as an appropriate way for harvesting and storing water. The main aim of this research is to study the use of remote sensing and geographic information system (GIS) to locate the best site of small dam in the east part of Iraq, east Alkut city. Satellite image of Landsat 8 were used to extract the lineament structures of the studied area by using the Geomatical2014 software, the extracted lineaments were identical in lengths and number to the lineaments in the geological map of studied area. Digital elevation model (DEM) were used to draw the drainage pattern and slope map of the studied area by using ArcGIS software. The drainage pattern was dendritic of e6th order and the slope of studied area was ranging from 0o to 61o, where the zero degree refers to the flat area. Finally, according to the analysis of the previous results, one site were suggested in 46o 4' 11'' E longitude and 32o 46' 29'' N latitude to be the best site in the studied area.

Keywords: Determining Dam Site, Remote Sensing, GIS, DEM.