Morphometric Analysis for Hydrological Assessment using Remote Sensing and GIS Technique: A Case Study of Dwarkeswar River Basin of Bankura District, West Bengal

The morphometric analysis of the drainage basin and channel network play an important role in understanding the geo-hydrological behaviour of drainage basin and emphasis the prevailing climate, geology, geomorphology, structural antecedents of the catchment. It expresses clearly the state of dynamic balance that has been attained for maintaining the balance between matter and energy. The growing demand of water has been increased due to rapid growth of population and industrialization, along with increasing urbanization call for scientific approaches to water resource management worldwide. Remote Sensing and GIS is playing very crucial role for investigating present scenario of groundwater potential through morphometric analysis and land use/land cove study (LULC). The aim of this study is to analyze and understand the morphometric characteristics for hydrological assessment of Dwarkeswar River basin, through the analysis of the linear, areal and relief aspects. Different parameters like Soil texture, Geology, LULC etc. are also included later on their weighted score has been assigned for determining the potential zones of ground water resources. Different parameters were analyzed; of them some relevant parameter has been chosen for analyzing dominancy by PCA. Mean Stream Length is the most dominating variable with compare to other variables. 1st Component alone explains the 71.809 percent of the total variable. Later on dominant variables have been chosen for as a potential parameter. From the Groundwater potentiality map of the study area it is visualized that less than 15% and near about 16% area undergoes to very low and low potentiality zone respectively. On the other hand more than 19% areal coverage of moderate potential zone and 29% is of high potential zone. Whether near about 21% area consists of very high Groundwater potential zone.