Description

The global warming has changed the climate worldwide. However, the nature and magnitude of the climate change vary in space and time. Its impacts also vary in space as well as time. The climate change will have different impacts in different places on rainfall amount, its intensity, frequency, rainy days, evapo-transpiration etc. These rainfall characteristics and evapo-transpiration ultimately impact on runoff and groundwater recharge also. Therefore, the location specific studies on basin scale are required to assess the impact of climate change on rainfall, runoff and groundwater recharge.The significant increasing trend in annual average of daily maximum, minimum and mean temperature was observed. The annual extreme maximum and minimum temperature showed no trend.The groundwater recharge in the basin during monsoon is found increasing per decade by water balance, Krishna Rao (1970) and water table fluctuation methods respectively due to climate change impacts.