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Delineation of Wadi Haseeb Watershed from Digital Elevation Model Using HEC-Geo-HMS in ArcGIS, East Nile, Sudan

Domain:

geospatial
Creator:
BusAmiMohAbd
Publisher:
SAS
Host:
Traditionally, topographic maps are usually employed for drainage analysis. However, channel network extraction and watershed delineation from topographic maps require time and expertise in cartography. The application of Geometrics (Remote Sensing (RS) and Geographic Information Systems (GIS) and land topographic information) is necessary for drainage network delineation. In the present study, the main objective is to delineate the drainage network and basin area of the wadi Haseeb watershed from the Digital Elevation Model (DEM) using the HEC-GeoHMS tool. The DEM of 10 m resolution is processed to define the primary natural flow routes and catchment. The hydrological analysis is performed for fill, flow direction, flow accumulation, stream definition, and finally, catchment delineation using the HEC-GeoHMS tool. Results show that the watershed was divided into four sub-basins (W240 - W270 - W410 - W420), the length of the catchment is 40 km, the watershed area was approximately 170 ha and the watershed slope was 0.9.

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