DETERMINATION OF WATERSHED MORPHOLOGICAL PARAMETERS USING REMOTE SENSING AND GIS

Drainage basin/watershed analysis based on morphometric parameters is very important for watershed planning. Morphometric analysis of watershed is the best method to identify the relationship of various aspects in the area. The application of remote sensing and geographical information system for the analysis of morphometric parameters are found to be of immense utility in watershed for soil, water conservation and natural resources management. In the present study, the Remote Sensing (RS) and Geographic Information System (GIS) techniques were applied to evaluate linear, areal and relief aspects morphometric parameters of the Limkheda watershed, situated at upstream of Hadaf river basin, Gujarat, India. In this study, it is found that SRTM-DEM model has the capability to precisely delineate the watershed and to extract different morphological parameters, to characterize the watershed behaviour. The Bifurcation ratio, form factor, elongation ratio and drainage density of the watershed are 0.58, 0.08, 0.33 and 0.35 respectively. The results of the study are useful for further hydrological investigations and the major inputs to various hydrological models.