DefinePK

Abstract

The monsoon seasonal rainfall record of Rajpipla area confined to Gujarat state of India, for a period of1987-2006, has been treated to mathematical and statistical analyses to observe variation pattern, future trends andtheir environmental impacts on groundwater regime. The mathematical analysis of monsoon seasonal rainfall dataindicates a fairly good range of variation from 321.30 mm to 1319.30 mm with an average rainfall value of 925.61 mmThe years indicating positive trend of departure from the computed value of average seasonal rainfall point outfavourable intervals for recharge of ground water reservoir. The cumulative departure from the average rainfall exceptfor 1998 and 2006 reveals existence of negative trend. The statistical analysis of rainfall data determines statisticalparameters, which indicate rather alternative variation pattern. The forecast of future rainfall trend for a period of nextthree years indicates an increasing trend in the expected rainfall amount. The environmental impacts of rainfallphenomena have been discussed. The strategy for augmentation of rainfall amount to enhance the groundwater rechargesystem for Rajpipla area has been suggested.