Catchment Discharge Modelling of a River Basin Using SWAT Model and Geospatial Techniques

Changes in hydrology of the basin due to anthropogenic and changing climatic conditions affect the management of water in industrial, domestic and agricultural practices. So focus should be given on hydrological research to assess and predict the discharge from a watershed. Calculating discharge from a watershed would help the engineers and urban planners to manage and distribute the river water effectively. Using Soil Water Assessment Tool (SWAT), discharge from each outlet of the sub-watershed is calculated based on soil, climate and LULC conditions. The SWAT model results help in identifying micro-watersheds based on HRU analysis. Further, it helps in identifying the points for the gauge stations to monitor water discharge from each micro-watershed. Forming of these micro-watersheds and gauge stations in a sub-watershed helps the urban planners, engineers and stakeholders to administer river water discharge for various uses in a drainage basin.