Groundwater modelling reveals optimal pumping rates for sustainable water supply in India.
Groundwater flow dynamics in the Doon Valley, India were studied using an inverse modelling approach. The researchers used various data sets and methods like satellite remote sensing, GIS modelling, and baseflow measurements to estimate groundwater recharge and hydraulic conductivities. They found that groundwater recharge rates varied from 1.86 to 6.77 mm/day during the monsoon period. The model results were validated with field observations, showing a good correlation. By restricting pumping to productive aquifers, the researchers suggest that drinking water and irrigation needs can be met while minimizing the impact on downstream water sources.