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Journal of Scientific Research and Reports

Journal of Scientific Research and Reports, ISSN: 2320-0227,Vol.: 3, Issue.: 2 (16-31 January)

Original-research-article

A Simple Geostatistical Approach in Geoelectrical Estimation of Aquifer Hydraulic Parameters: A Case Study of Benin Hydrogeological Province in Umuahia Area, Southern Nigeria

 

C. Amos-Uhegbu1*

1Department of Physics (Geophysics), College of Natural and Applied Sciences, Michael Okpara University of Agriculture, Umudike, P.M.B 7267 Umuahia, Abia-State, Nigeria.

 

Article Information

Editor(s):

(1) Alessandro Pezzoli, Assistant Professor, Water Supply & Wastewater Engineering Turin Polytechnic and Adjoint Professor in Meteorology, Turin University, Italy.

Reviewers:

(1) Anonymous.

(2) Ochuko Anomohanran, Delta State University, Nigeria.

(3) Anonymous.

Complete Peer review History: http://www.sciencedomain.org/review-history/2474

 

Abstracts

 

Knowledge of aquifer parameters is essential for the assessment, management and protection strategy of groundwater resources. The values of these parameters are best estimated through pumping tests but are costly and time consuming. Data from Electrical resistivity survey carried out at the vicinity of a borehole where pumping tests have been acquired together with pumping test data provides a cost-effective and efficient alternative to estimate aquifer parameters in sites where pumping tests are not available using the surface geophysical methods. In this Paper a simplified geo-statistical integrated approach to derive aquifer parameters from pumping tests data and surface resistivity soundings (VES) is presented. This method was explored by using pumping tests analysis data especially hydraulic conductivity to calculate the transmissivity (T) of the same boreholes from data (thickness) acquired through surface resistivity soundings (VES). A graphical linear relationship was established from a set of data and subsequently used in places where pumping test is not available for the determination (estimation) of aquifer hydraulic parameters. When the method was compared with existing data, the compared result was further used in deriving transmissivity factor and subsequently used in the determination (estimation) of other aquifer hydraulic parameters. It was concluded that hydraulic conductivity can be accurately predicted using this approach. The main advantage of the estimation method presented here is its simplicity and accuracy.

 

Keywords :

Geo-electrical data; geostatistics; graphical linear relationship; transmissivity factor; aquifer parameter estimation.

 

Full Article - PDF    Page 306-326    Article Metrics

 

DOI : 10.9734/JSRR/2014/4429

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