National Geophysical Research Institute
Indo-French Center for Groundwater Research
Self-potential (SP) signals that are generated under two-phase flow conditions could be used to study vadose zone dynamics and to monitor petroleum production. These streaming-potentials may also act as an error source in SP monitoring of... more
The NW—SE trending Nagaur—Jhalawar deep crustal seismic profile transect across the Aravalli—Delhi Fold Belt to delineate the crustal structure and infer about the tectonics of this region. Seismic and gravity analyses of this profile... more
Supply of sustainable water is a priority for urbanization of the country. Managed aquifer recharge (MAR) is recommended to enhance the groundwater resources, but finding the favorable site for MAR is quite challenging, particularly, in... more
Knowledge of the existence of fracture zones, their extent, intensity and direction is very useful for assessing groundwater in hardrock regions and in this context geophysical methods are widely accepted as a powerful means of study. In... more
Any scientific study is based on a number of information on the system or processes through measurement of parameters defining one or more properties of the physical system. In most cases these parameters change their values in space and... more
ABSTRACT : DC electrical methods are among the most popular tools for groundwater exploration in both porous and fissured media. VLF methods less used than previous ones because their depth of investigation is more limited, permit... more
- by Tanvi Arora
Some of the most important hydrogeological parameters includes hydraulic head, transmissivity, aquifer thickness, storage coefficient, rainfall, and effective recharge for ground water management. They all are functions of space and are... more
- by Tanvi Arora
The geology of the watershed (study area) is granites of Archaen age and the groundwater is threatened by the fluoride (F) contamination, as fluorine is the most abundant element in granites. This study consider? the effects of the... more
- by Tanvi Arora
Abstract Knowledge of the existence of fracture zones, their extent, intensity and direction is very useful for assessing groundwater in hardrock regions and in this context geophysical methods are widely accepted as a powerful means of... more
ABSTRACT The paper presents semi-analytical mathematical model to estimate unsteady groundwater recharge resulting from variable depth of water in a large water body, influenced by time variant inflows and outflows. The model has been... more