8 research outputs found
Evaluation of the aquifer characteristic of Nanka Sands using hydrogeological method in combination with Vertical Electrical Sounding (VES)
In this study, we have coupled surface geophysical method with pumping
test results to provide a cost effective and efficient alternative in
aquifer parameter estimation. Vertical Electrical Sounding (VES) was
carried out at 40 sites in the study area for the identification of the
vertical variation in subsurface lithology and for the characterization
of the aquifer system of the study area. The interpretation of the VES
data revealed 3 to 5 geoelectric units with the depth to aquifer
varying from 7 to 108m and the resistivity of the saturated layer
varying between 42.9 and 8829 ohm-m. Using the geoelectric data,
aquifer depth, hydraulic head and aquifer resistivity maps were prepare
using appropriate software. Aquifer characteristics in the form of
transmissivity and hydraulic conductivity calculated from interpreted
VES results varied from 0.48 to 19.50m2/day and 0.06 to 3.75m/day
respectively. This coupling has proved useful and most valuable in
areas of scarce data such as the study area. @ JASE
Evaluation of the aquifer characteristic of Nanka Sands using hydrogeological method in combination with Vertical Electrical Sounding (VES)
In this study, we have coupled surface geophysical method with pumping
test results to provide a cost effective and efficient alternative in
aquifer parameter estimation. Vertical Electrical Sounding (VES) was
carried out at 40 sites in the study area for the identification of the
vertical variation in subsurface lithology and for the characterization
of the aquifer system of the study area. The interpretation of the VES
data revealed 3 to 5 geoelectric units with the depth to aquifer
varying from 7 to 108m and the resistivity of the saturated layer
varying between 42.9 and 8829 ohm-m. Using the geoelectric data,
aquifer depth, hydraulic head and aquifer resistivity maps were prepare
using appropriate software. Aquifer characteristics in the form of
transmissivity and hydraulic conductivity calculated from interpreted
VES results varied from 0.48 to 19.50m2/day and 0.06 to 3.75m/day
respectively. This coupling has proved useful and most valuable in
areas of scarce data such as the study area. @ JASE
Evaluation of the aquifer characteristic of Nanka Sands using hydrogeological method in combination with Vertical Electrical Sounding (VES)
In this study, we have coupled surface geophysical method with pumping
test results to provide a cost effective and efficient alternative in
aquifer parameter estimation. Vertical Electrical Sounding (VES) was
carried out at 40 sites in the study area for the identification of the
vertical variation in subsurface lithology and for the characterization
of the aquifer system of the study area. The interpretation of the VES
data revealed 3 to 5 geoelectric units with the depth to aquifer
varying from 7 to 108m and the resistivity of the saturated layer
varying between 42.9 and 8829 ohm-m. Using the geoelectric data,
aquifer depth, hydraulic head and aquifer resistivity maps were prepare
using appropriate software. Aquifer characteristics in the form of
transmissivity and hydraulic conductivity calculated from interpreted
VES results varied from 0.48 to 19.50m2/day and 0.06 to 3.75m/day
respectively. This coupling has proved useful and most valuable in
areas of scarce data such as the study area. @ JASE
Multiport Well Design for Sampling of Ground Water at Closely Spaced Vertical Intervals
Detailed vertical sampling is useful in aquifers where vertical mixing is limited and steep vertical gradients in chemical concentrations are expected