This paper analyzes the responses of profit maximizing groundwater users to modifications (elimination, reduction, decoupling) of the subsidy to electricity frequently used for water pumping. It proposes a theoretical model, and numerically derives general results for a simplified case with homogeneous users. The model is applied to aquifers in Leon, Guanajuato, Mexico and in Kern County, Calif...

The dependency of surfaceor groundwater flows and aquifer hydraulic properties on dewateringinduced layer deformation is not available in the USGS's groundwater model MODFLOW. A new integrated hydrologic model, MODFLOW-OWHM, formulates this dependency by coupling mesh deformation with aquifer transmissivity and storage and by linking land subsidence/uplift with deformationdependent flows that a...

Directional drilling and hydraulic-fracturing technologies are dramatically increasing natural-gas extraction. In aquifers overlying the Marcellus and Utica shale formations of northeastern Pennsylvania and upstate New York, we document systematic evidence for methane contamination of drinking water associated with shale-gas extraction. In active gas-extraction areas (one or more gas wells with...

In this article we examine the effects of energy prices on groundwater extraction using an econometric model of a farmer’s irrigation water pumping decision that accounts for both the intensive and extensive margins. Our results show that energy prices have an effect on both the intensive and extensive margins. Increasing energy prices would affect crop selection decisions, crop acreage allocat...

Various researchers have reported and described the adverse effects of saltwater ingression in coastal zones of different parts of world like Italy, Japan, Greek islands, Oman, Nigeria, Atlanta Coast USA, Turkey, Netherlands, Catalonia and Sardinia and various coastal areas of India [1-35]. India has long coastal line of 5700 km. The east coast (Coromandel Coast) extended from West Bengal to Ka...

Various researchers have reported and described the adverse effects of saltwater ingression in coastal zones of different parts of world like Italy, Japan, Greek islands, Oman, Nigeria, Atlanta Coast USA, Turkey, Netherlands, Catalonia and Sardinia and various coastal areas of India [1-35]. India has long coastal line of 5700 km. The east coast (Coromandel Coast) extended from West Bengal to Ka...