ANALYSIS OF DRAINAGE PATTERN OF CHIKUN LOCAL GOVERNMENT AREA OF KADUNA STATE, USING GIS AND REMOTELY SENSED SATELLITE IMAGERY
Abstract
Geographical Information System (GIS) have proved to be a valuable method of characterizing the hydrological response behavior on any Environment; Remote sensing satellite image is emerging as the most effective, time saving and accurate technique for drainage analysis. This project aimed at analyzing the drainage pattern of Chikun Local Government Area of Kaduna State, using Advance Space borne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) data for the identification of the drainage pattern of the study area. The method used in the analysis of the drainage pattern, includes the Digital Elevation, fill, flow direction, flow accumulation, stream order raster, stream order vector, slope, aspects, and contour. Three sub-watersheds were delineated in the study area, Arc GIS and Microsoft Excel were used for analysis, the results shows that the percentage of W1 is of fourth order pattern with an area of 1419.209km2, W2 is of fifth order with an area of 1051.989km2 and W3 is of fifth order with an area of 4801.703km2. The analysis also revealed that the study area is of the fifth order and dendritic drainage pattern. Total number of streams segment is 1836, in which 963 are first order, 440 are second order, 253 are third order, 163 are fourth order streams and 17 are fifth order.
