The U.S. Geological Survey, in cooperation with San Antonio Water System, conducted a geophysical and geological study of the Cibolo Canyon development area, northeast Bexar County, Texas, to characterize hydrostratigraphic features and to map surface and subsurface hydrogeologic features of the Edwards aquifer. Capacitively-coupled (CC) resistivity and frequency-domain electromagnetic (FDEM) p...

Abstract The multi-aquifer system of the Nubian aquifer in central Sudan hydrogeological was simulated using a three-dimensional steady-state model. goal study is to detect effect pumping on groundwater flow and thus, productivity. conceptual model area built based available geological data guided by geophysical survey. Processing MODFLOW numerical code used calculate hydraulic head water balan...

Abstract Geological, hydrogeological and geophysical investigations were carried out in Yala Area (SE Nigeria) to delineate potential zones for future groundwater development. The area is underlain by Turonian fractured shale rock intruded basaltic rocks saline water. High lineament density (> 30 km ?1 ) recorded the north suggest high permeable zone, compared with low (< 10 south east. G...

[1] Defining rational and effective hydrogeological data acquisition strategies is of crucial importance as such efforts are always resource limited. Usually, strategies are developed with the goal of reducing uncertainty, but less often they are developed in the context of their impacts on uncertainty. This paper presents an approach for determining site characterization needs on the basis of ...

Groundwater is the most unexplored element of hydrologic cycle on Tibetan Plateau (TP) due to harsh climate conditions. This study aims at delineating and characterizing Zhanongtang–Ganmanong aquifer, situated in Zhagu subcatchment Nam Co catchment, south-central TP. Multiple hydrogeophysical lithological situ field laboratory methods are applied: depth-to-water-table measurements, grain size a...