Rainfall and Water Resources of a Coastal Basin of Ghana
Publication: Journal of Hydrologic Engineering
Volume 16, Issue 4
Abstract
Temporal distributions as well as spatial variability of rainfall have been investigated within the Densu River basin in Ghana to determine the duration pattern of rainfall events and their intensities and how these affect the partitioning of rainfall into overland flow and infiltration. Also, the use of daily rainfall data () as inputs in physically based hydrological models for water balance computation and description of hydrological processes in the basin was assessed in relation to the actual duration of rainfall events in the basin. The threshold intensities for groundwater recharge in the Birimian, Granite, and Togo formation soils are below , , and , respectively, and above in the entire basin. The amount of rainfall infiltrating into the groundwater system will diminish in the future because of the imminent effects of climate change on the intensity of rainfall events.
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Acknowledgments
The study was financed and supervised by The Danish International Development Agency (DANIDA) and supported by the Water Resources Commission of Ghana and the Ghana Meteorological Agency.
REFERENCES
Adu, S. V., and Asiamah, R. D. (1992). “Soil of the Ayensu/Densu basin of Ghana.” Soil Research Institute, Kwadaso-Kumasi, Ghana.
Alfa, B., Hasholt, B., Banong-Yakubo, B., and Jørgensen, N. O. (2008). “Unsaturated zone heterogeneity and land use/cover on groundwater recharge—A case study of the Densu basin.” Proc. IAHS Int. Conf., Water Down Under, 2581-2592.
Dunne, T. (1978). “Field studies of hillslope flow processes.” Hillslope hydrology, M. J. Kirkby, ed., Wiley, Chichester, UK.
Ghana Statistical Service. (2000). Population and housing census, Ghana Statistical Service, Accra.
Haan, C. T., Barfield, B. J., and Hayes, J. C. (1994). Design hydrology and sedimentology for small catchments, Academic Press, New York.
Horton, R. E. (1933). The Horton papers.
Johst, M., Uhlenbrook, S., Tilch, N., Zillgens, B., Didszun, J., and Kirnbauer, R. (2008). “An attempt of process-oriented rainfall-runoff modelling using multiple-response data in an alpine catchment, Loehnersbach, Austria.” Hydrol. Res., 39(1), 1–16.
MIKE SHE [Computer software]. (1980). Denmark, Danish Hydraulic Institute.
Tumbulto, J. W. (2005) “A study of water balance of the Pompon sub-basin of the Densu river basin.” Ph.D. thesis, Univ. of Ghana, Accra, Ghana.
WRC. (2003). “Groundwater assessment: An element of integrated water resources management.” Project Report, WRC, Accra.
WRC. (2007). “Integrated water resources management plan of the Densu basin.” Component Report, WRC, Accra.
Information & Authors
Information
Published In
Journal of Hydrologic Engineering
Volume 16 • Issue 4 • April 2011
Pages: 316 - 323
Copyright
© 2011 American Society of Civil Engineers.
History
Received: Apr 20, 2010
Accepted: Aug 21, 2010
Published online: Mar 15, 2011
Published in print: Apr 1, 2011
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