GIS integration of hydrogeological and geoelectrical data for groundwater potential modeling in the western part of greater Kushtia district of Bangladesh


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Geographical Information System (GIS) has been used in this paper to delineate groundwater resources potential in the western part of greater Kushtia district of Bangladesh, where urgent attention for augmentation of irrigation water supply is required. Thematic maps of transmissivity, hydraulic conductivity, specific yield, net recharge, aquifer thickness, surface water bodies, aquifer resistivity, overburden aquitard thickness and its resistivity have been prepared and assigned weight according to their relative importance using Analytical Hierarchical Process for the preparation of groundwater potential model. Since the values within each thematic map vary significantly, they are classified into various ranges or types and assigned ratings. Finally, the thematic maps are integrated using GIS to prepare the groundwater potential map for the study area in terms of Ground Water Potential Index (GWPI). The evolved map indicates that 22.51% of the study area have GWPI more than 0.70 and therefore, have excellent prospective for exploitation. About 69.12% of the area with GWPI ranging from 0.50 to 0.70 is also quite promising for groundwater abstraction, while the rest 8.37% area having GWPI below 0.50 indicates moderate potential. The obtained map of groundwater potential is found in good agreement with the yields of available pumping test data.

作者简介

M. Nozibul Haque

Department of Applied Physics

Email: keramat@ru.ac.bd
孟加拉国, Kushtia, 7003

Shamsuddin Shahid

Department of Hydraulics and Hydrology, Faculty of Civil Engineering

Email: keramat@ru.ac.bd
马来西亚, Johor Bahru, 81310

Mumnunul Keramat

Department of Applied Physics and Electronic Engineering

编辑信件的主要联系方式.
Email: keramat@ru.ac.bd
孟加拉国, Rajshahi, 6205

Morteza Mohsenipour

Department of Hydraulics and Hydrology, Faculty of Civil Engineering

Email: keramat@ru.ac.bd
马来西亚, Johor Bahru, 81310

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