The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform
F M Neubauer - One of the best experts on this subject based on the ideXlab platform.
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Groundwater Exploration using integrated geophysical techniques
Surveys in Geophysics, 1994Co-Authors: M Goldman, F M NeubauerAbstract:The integrated approach to solving complicated geological, hydrological and environmental problems is now widely used in geophysics. Among all the geophysical methods, electrical and electromagnetic techniques are the most popular in Groundwater Exploration due to the close relationship between electrical conductivity and some hydrogeological properties of the aquifer (e.g. porosity, clay content, mineralization of the Groundwater and degree of water saturation). Case histories presented here show that by proper combination of different techniques such as conventional direct current (DC) resistivity as well as the more advanced electromagnetic (EM) methods and the most recent nuclear magnetic resonance (NMR) tomography, the reliability of interpretation as compared to that typical for the individual methods can be significantly improved.
Robin T Mashingaidze - One of the best experts on this subject based on the ideXlab platform.
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review approaches to Groundwater Exploration and resource evaluation in the crystalline basement aquifers of zimbabwe
Hydrogeology Journal, 2019Co-Authors: Innocent Muchingami, Constant Chuma, Mervyn Gumbo, Dumisani J Hlatywayo, Robin T MashingaidzeAbstract:Assessment of the Groundwater potential of crystalline basement aquifers is challenging. These systems can be highly spatially variable, as indicated by the drilling of numerous dry boreholes and seasonal variation in discharge rates. This paper reviews methodologies applied for the evaluation of Groundwater occurrence and yield estimation in the crystalline basement aquifers of Zimbabwe. These aquifers underlie much of the country and are described in terms of low yield owing to low recharge potential in the semiarid climate. In such regions, exploitable Groundwater forms a strategic supply of potable water used to meet the socio-economic needs of the local population. Case studies are used to show how remote sensing and geophysical methods are integrated to improve borehole success rates in the basement aquifers of Zimbabwe. Potential threats to Groundwater resources and quality within crystalline basement aquifers are discussed. It can be concluded that major issues remain to be addressed if sustainable use of the water resources of crystalline basement aquifers in Zimbabwe is to be achieved, especially with respect to borehole-siting approaches and prevention of Groundwater contamination. The key recommendation is to address the paucity of primary Groundwater monitoring data within the crystalline basement aquifers at the national level, thereby creating a technical Groundwater management framework.
M Goldman - One of the best experts on this subject based on the ideXlab platform.
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Groundwater Exploration using integrated geophysical techniques
Surveys in Geophysics, 1994Co-Authors: M Goldman, F M NeubauerAbstract:The integrated approach to solving complicated geological, hydrological and environmental problems is now widely used in geophysics. Among all the geophysical methods, electrical and electromagnetic techniques are the most popular in Groundwater Exploration due to the close relationship between electrical conductivity and some hydrogeological properties of the aquifer (e.g. porosity, clay content, mineralization of the Groundwater and degree of water saturation). Case histories presented here show that by proper combination of different techniques such as conventional direct current (DC) resistivity as well as the more advanced electromagnetic (EM) methods and the most recent nuclear magnetic resonance (NMR) tomography, the reliability of interpretation as compared to that typical for the individual methods can be significantly improved.
Innocent Muchingami - One of the best experts on this subject based on the ideXlab platform.
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review approaches to Groundwater Exploration and resource evaluation in the crystalline basement aquifers of zimbabwe
Hydrogeology Journal, 2019Co-Authors: Innocent Muchingami, Constant Chuma, Mervyn Gumbo, Dumisani J Hlatywayo, Robin T MashingaidzeAbstract:Assessment of the Groundwater potential of crystalline basement aquifers is challenging. These systems can be highly spatially variable, as indicated by the drilling of numerous dry boreholes and seasonal variation in discharge rates. This paper reviews methodologies applied for the evaluation of Groundwater occurrence and yield estimation in the crystalline basement aquifers of Zimbabwe. These aquifers underlie much of the country and are described in terms of low yield owing to low recharge potential in the semiarid climate. In such regions, exploitable Groundwater forms a strategic supply of potable water used to meet the socio-economic needs of the local population. Case studies are used to show how remote sensing and geophysical methods are integrated to improve borehole success rates in the basement aquifers of Zimbabwe. Potential threats to Groundwater resources and quality within crystalline basement aquifers are discussed. It can be concluded that major issues remain to be addressed if sustainable use of the water resources of crystalline basement aquifers in Zimbabwe is to be achieved, especially with respect to borehole-siting approaches and prevention of Groundwater contamination. The key recommendation is to address the paucity of primary Groundwater monitoring data within the crystalline basement aquifers at the national level, thereby creating a technical Groundwater management framework.
R M Teeuw - One of the best experts on this subject based on the ideXlab platform.
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Groundwater Exploration using remote sensing and a low cost geographical information system
Hydrogeology Journal, 1995Co-Authors: R M TeeuwAbstract:Now that personal computers (pc's) have become more powerful, potable, and affordable, geoscientists can make full use of developments in computer-aided mapping, particularly Geographical Information Systems (GIS). The IDRISI GIS was used to 1) carry out image processing on satellite images; 2) assess the reliability of the interpreted lineaments; 3) create maps showing individual lineament lengths, areal extent of interconnected lineaments, and targets for Groundwater boreholes; and 4) incorporate socio-economic factors, by creating maps that show the proximity of villages to sites considered favourable for boreholes. The exact location of each site for drilling was decided on the basis of geophysical surveys over the areas that had been targeted by the remote sensing and GIS analysis. Most of the remote sensing and GIS work was carried out in Ghana in two weeks, during which the ‘ground truth’ of lineament maps was checked. The total cost of the hardware and software used in this project (16-colour laptop pc, portable colour printer, and IDRISI) was slightly less than US$ 2,600. The relatively low cost and ease of use of this system make it a technology that is readily transferable to developing countries.
