Author(s)

P. M. Kundu, R. L. Singo, J. O. Odiyo, F. I. Mathivha & R. N. Nkuna

Abstract

Physiographic and topographic changes in Luvuvhu River Catchment are negatively impacting on the catchment hydrology of the area. A study was carried out to extract and analyze the morphologic and hydrologic properties using GIS techniques. Digital Elevation Modeling hydro-processing procedures were used within an ArcGIS environment where Arc hydro tools were used to extract and show the spatial distribution of the properties. A hydrologically correct Digital Elevation Modeling (DEM) was generated and used to obtain primary and derived terrain elements. The results showed the automated delineation of sub-catchments and the spatial distribution of morphometric and hydrologic properties. The analysis showed how the physiographic changes were impacting on the river regimes and water resources. Keywords: catchment, Digital Elevation Modeling, GIS techniques, hydrologic properties, morphometric properties.

Keywords

catchment, Digital Elevation Modeling, GIS techniques, hydrologicproperties, morphometric properties