Hydrological and Morphometric Analysis of Upper Yedzaram Catchment of Mubi in Adamawa State, Nigeria. Using Geographic Information System (GIS)

摘要

The morphometric analysis of the upper Yedzaram catchment is evaluated using the drainage system. This research focuses on the hydrological and geometrical analysis with emphasis on the morphometric characteristics of the catchment such as the Watershed Analysis, Bifurcation Ratio which forms the linear properties, Stream Order (Nu), Stream Length (Lu), Drainage Density (D), Stream Frequency (Fs), Texture Ratio (T), Elongation Ratio (Re), Basin Relief and Basin Ratio. A total number of 61 streams were determined in which 17 are 1st Order, 19 are 2nd Order, 18 are 3rd Order, 6 are 4th Order and 1 is 5th Order streams. The bifurcation Ratio value of the catchment is 2.74 while the total stream length is 161.97 km with total area coverage of 191.17 sq. km. The Drainage Density (D) of the study area is 0.85. This tends to associate the low density with high permeable top subsoil and tick vegetation cover. The value indicates that in every square kilometer of the basin, there is 0.85 Kilometer of drainage channel.