An SDUH model was developed using digital DEM elevation data and land use data collected during a field survey. The SDUH model was applied to a 5km2 agricultural watershed in the Upper Athi river region of the entire Athi river basin. The USGS DEM (30-m) resolution was used to estimate the slope, aspect, flow distance and upstream area for each cell. The watershed was divided into "overland" and "channel" flow cells based on the area upstream above each cell. If the area was larger than the threshold of 1.2km2 (1300cells), the cell was assumed to be dominated by channel flow. ...
An SDUH model was developed using digital DEM elevation data and land use data collected during a field survey. The SDUH model was applied to a 5km2...
