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The ENRECA Hydrogeological-hydrological programme in Ghana

 
GEUS - Internationale udviklingsprojekter. The ENRECA Hydrogeological-hydrological programme in Ghana
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The ENRECA Hydrogeological-hydrological programme in Ghana

Kenya on globe Kenya * GEUS has since 2004 assisted Department of Geography and Geology, University of Copenhagen on the ENRECA Hydrogeological-hydrological programme in Ghana, which commenced in 1997 and will be completed end 2008. The project is financed by the Danish International Development Assistance (Danida), and specifically by its ENhancement of REsearch CApacity (ENRECA) programme.

The principal aim of the programme is to consolidate and further develop the already established research capability and education capacity in the fields of hydrogeology and hydrology at the Department of Geology, University of Ghana. The long-term objective is to improve the qualification of the future hydrogeologists/hydrologists in Ghana and to establish research relations with the international research community through joint research projects, Ph.D.-programmes, conferences and joint publications in order to attract external funding to the Department of Geology, University of Ghana.

A number of field instruments for groundwater quality tests, for hydrometric data recording, for geophysical borehole logging and for geophysical mapping have been provided to the Department of Geology mainly during the phase I (1997-2001) and II (2001-2004) together with vehicles, computers, printers and plotter. Furthermore, the office and teaching facilities of the department has been upgraded.

The ongoing last phase (2004-2008) of the programme is focussing on 1) Groundwater quality studies, hydrometric analyses and water balance studies of the Densu River Basin NW of Accra; 2) The resistivity of the different type of crystalline rocks in Volta Region aiming to improve the geophysical siting of borewells; 3) Borehole-logging investigations of the Voltaian series of rock in Northern and Central Ghana aiming to conclude on the groundwater availability; 4) The environmental effects from gold mining industries on surface water and groundwater in Central and in South-western Ghana; 5) The causes for occurrences of saline groundwater in crystalline basement and in coastal sedimentary groundwater reservoirs in South Central Ghana.

The activities have included the establishment of a hydrometric station and hydrogeological training site in the Densu River Basin and of a hydrometric station at Anloga in Keta District. Field courses and workshops are held regularly each year at University of Ghana. In order to improve the professional and technical capabilities of PhD-students research, courses are also held in Denmark, whereby they will experience up to date methods and advanced instruments and will obtain the necessary capability on maintenance of field equipment.

Furthermore, a research area has been established in the Afram Plains by drilling of five deep exploratory boreholes (100-160 m deep) into the Voltaian rocks. The drilling was funded under the Danida Water & Sanitation Sector Program. Long term monitoring of the water table in these boreholes has been initiated under the ENRECA program. A study of the lithology, stratigraphy, hydrochemistry, water bearing capacity and storage will be conducted partly under the ENRECA program and partly by scientific staff from Department of Geology, Ghana University, Department of Geography and Geology, Copenhagen University and The Geological Survey of Denmark and Greenland (GEUS).



The ENRECA Hydrogeological-hydrological programme in Ghana