Rainfall and Water Resources of a Coastal Basin of Ghana
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 u...
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| Published in: | Journal of hydrologic engineering Vol. 16; no. 4; pp. 316 - 323 |
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| Main Authors: | , , , |
| Format: | Journal Article |
| Language: | English |
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American Society of Civil Engineers
01-04-2011
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| 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 (mm/day) 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 70 mm/h, 85 mm/h, and 95 mm/h, respectively, and above 10 mm/h 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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| AbstractList | 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 (mm/day) 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 70 mm/h, 85 mm/h, and 95 mm/h, respectively, and above 10 mm/h 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. |
| Author | Alfa, B Jørgensen, N. O Hasholt, B Banoeng-Yakubo, B |
| Author_xml | – sequence: 1 givenname: B surname: Alfa fullname: Alfa, B email: bobalfa@yahoo.com organization: Water Resources Commission of Ghana , , P. O. Box CT 5630, Accra, Ghana (corresponding author). E-mail – sequence: 2 givenname: B surname: Hasholt fullname: Hasholt, B organization: Univ. of Copenhagen , Institute of Geography and Geology, , Øster Voldgade 10, DK-1350, Denmark – sequence: 3 givenname: N. O surname: Jørgensen fullname: Jørgensen, N. O organization: Univ. of Copenhagen , Institute of Geography and Geology, , Øster Voldgade 10, DK-1350, Denmark – sequence: 4 givenname: B surname: Banoeng-Yakubo fullname: Banoeng-Yakubo, B organization: Univ. of Ghana , Dept. of Geology, , P.O. Box 58, Legon, Accra, Ghana |
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| CitedBy_id | crossref_primary_10_1016_j_ejrh_2022_101017 crossref_primary_10_2166_wp_2015_033 crossref_primary_10_1080_02508060_2013_821642 crossref_primary_10_1080_23311916_2020_1735714 crossref_primary_10_1080_15715124_2020_1803337 crossref_primary_10_1080_08839514_2022_2138130 crossref_primary_10_2166_ws_2021_399 crossref_primary_10_2166_ws_2020_187 crossref_primary_10_1007_s12652_012_0149_4 crossref_primary_10_1016_j_jafrearsci_2021_104332 |
| Cites_doi | 10.2166/nh.2008.035 |
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| EndPage | 323 |
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| References | Johst, M.; Uhlenbrook, S.; Tilch, N.; Zillgens, B.; Didszun, J.; Kirnbauer, R. 2008; 39 e_1_3_2_9_1 e_1_3_2_8_1 Ghana Statistical Service (e_1_3_2_5_1) 2000 e_1_3_2_2_1 e_1_3_2_10_1 e_1_3_2_11_1 Dunne T. (e_1_3_2_4_1) 1978 e_1_3_2_12_1 e_1_3_2_3_1 Haan C. T. (e_1_3_2_6_1) 1994 Horton R. E. (e_1_3_2_7_1) 1933 |
| References_xml | – volume: 39 start-page: 1 year: 2008 end-page: 16 article-title: An attempt of process-oriented rainfall-runoff modelling using multiple-response data in an alpine catchment, Loehnersbach, Austria publication-title: Hydrol. Res. contributor: fullname: Johst, M.; Uhlenbrook, S.; Tilch, N.; Zillgens, B.; Didszun, J.; Kirnbauer, R. – ident: e_1_3_2_10_1 – volume-title: The Horton papers year: 1933 ident: e_1_3_2_7_1 contributor: fullname: Horton R. E. – ident: e_1_3_2_3_1 – volume-title: Design hydrology and sedimentology for small catchments year: 1994 ident: e_1_3_2_6_1 contributor: fullname: Haan C. T. – ident: e_1_3_2_9_1 – ident: e_1_3_2_11_1 – volume-title: Hillslope hydrology year: 1978 ident: e_1_3_2_4_1 contributor: fullname: Dunne T. – ident: e_1_3_2_12_1 – ident: e_1_3_2_2_1 – volume-title: Population and housing census year: 2000 ident: e_1_3_2_5_1 contributor: fullname: Ghana Statistical Service – ident: e_1_3_2_8_1 doi: 10.2166/nh.2008.035 |
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| SubjectTerms | Basins Freshwater Granite Groundwater Hydrology Mathematical models Rainfall Soils TECHNICAL PAPERS Water resources |
| Title | Rainfall and Water Resources of a Coastal Basin of Ghana |
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