Abstract:
Water balance indicates the total water budget of a basin during a particular year by quantifying
all inputs and outputs. This helps in basin planning in many ways, whether to estimate the
surface water availability or groundwater availability. The present study is in that context to
quantify the total water resources of the Sonar sub-basin on a water balance basis. In this
study, site specific recharge rates have been estimated using the Visual HELP model. The
model uses soil profile data, vegetation information and weather data. The results of the HELP
model are in a water budget form which includes precipitation, runoff, evapotranspiration and
percolation through soil layers. The results of this study will be useful for the planning and
management of water resources of the Sonar basin.
