Morphometric Analysis of Damodar River Course and Its Impact on Land & Land Cover

The present study attempts to undertakes the analysis of morphometric characteristics of Damodar river tiles of DEM were downloaded from Isro’s BHUVAN web portal, which were mosaic to form a single image. Subset image was created from the mosaic image from which drainage network within the river was generated. Further, utilizing the drainage network image, morphometric parameters such as stream length, bifurcation ratio, stream order, watershed length, area, drainage density and shape were calculated. The land use/ land cover maps of the study area were prepared for 5th different time periods viz., 1951, 1973, 1989, 2001, and 2009. The land use/ land cover map for 1951 was generated from Survey of India toposheets at 1:250000 scale while as the land use/ land cover map for 1973LANDLAT-MSS, TM1989, ETM2001 and L-4-5 TM was generated from LANDSAT-MSS TM, ETM through the method of digitization in ArcGIS3.2a GIS software. The generated land use/ land cover maps of the five different time periods were validated after ground truthing.