A number of drought indices have been developed in past. Most of these indices appear to be adhoc and consider either rainfall alone or take some account of soil water storage and loss of water from this storage ...

A mathematical ground water flow model has been developed to predict the exchange of flow between a partially penetrating river and a homogeneous infinite aquifer. The model considers the changes in river ...

Unsteady flow to a large-diameter well in a confined aquifer has been analysed by discrete kernel approach for the case where the pumping rate is a quadratic function of drawdown. The equation assumed to hold good between ...

Next to rainfall, evapotranspiration is the most important term in the water balance of catchment areas. The subject of evapotranspiration, which includes evaporation of water from land and water ...

Interaction of depression storage and aquifer till recently was either neglected or taken as a residual of a water balance study. Understanding of the interaction of surface water body with the aquifer is ...

A river comprising boundary of flow domain is often encountered in regional groundwater flow modelling. When a river fully penetrates an aquifer and has considerable stream discharge, the river ...

The duration of the pumping test is largely influenced by the discharge rate, radial distances of the observation points, aquifer parameters and boundary conditions. Plots have been presented for determining the time ...