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Hydro-Climatic Modelling of an Ungauged Basin in Kumasi, Ghana
An article published by Hydrol. Earth Syst. Sci. Discuss.and available at https://doi.org/10.5194/hess-2017-729
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| Format: | Article |
| Language: | English |
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Hydrol. Earth Syst. Sci. Discuss.
2019
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| _version_ | 1867613134952333312 |
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| access_status_str | Open Access |
| author | Osei, Marian Amoakowaah Amekudzi, Leonard Kofitse Wemegah, David Dotse Preko, Kwasi Gyawu, Emmanuella Serwaa Obiri-Danso, Kwasi |
| author_browse | Amekudzi, Leonard Kofitse Gyawu, Emmanuella Serwaa Obiri-Danso, Kwasi Osei, Marian Amoakowaah Preko, Kwasi Wemegah, David Dotse |
| author_facet | Osei, Marian Amoakowaah Amekudzi, Leonard Kofitse Wemegah, David Dotse Preko, Kwasi Gyawu, Emmanuella Serwaa Obiri-Danso, Kwasi |
| author_sort | Osei, Marian Amoakowaah |
| collection | Thesis |
| description | An article published by Hydrol. Earth Syst. Sci. Discuss.and available at https://doi.org/10.5194/hess-2017-729 |
| format | Article |
| id | oai:ir.knust.edu.gh:123456789/11805 |
| institution | KNUST (Ghana) |
| language | English |
| last_indexed | 2026-06-10T12:31:19.760Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from KNUSTSpace — Kwame Nkrumah University of Science & Technology (Ghana) |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Hydrol. Earth Syst. Sci. Discuss. |
| publisherStr | Hydrol. Earth Syst. Sci. Discuss. |
| record_format | dspace |
| source_str | KNUSTSpace — Kwame Nkrumah University of Science & Technology (Ghana) |
| spelling | oai:ir.knust.edu.gh:123456789/11805 Hydro-Climatic Modelling of an Ungauged Basin in Kumasi, Ghana Osei, Marian Amoakowaah Amekudzi, Leonard Kofitse Wemegah, David Dotse Preko, Kwasi Gyawu, Emmanuella Serwaa Obiri-Danso, Kwasi An article published by Hydrol. Earth Syst. Sci. Discuss.and available at https://doi.org/10.5194/hess-2017-729 The Owabi catchment which is about 69 km2 provides about 20 % of water needs of the Kumasi metropolis has been in recent times prone to high anthropogenic activities that threaten water resource management. The Soil-Water-AssessmentTool (SWAT) was used to assess the extent of these activities on the hydrology on the catchment from 1986 to 2015. Specifically, the model simulated historic and projected stream-flow and water balance. Initial results revealed the forest and topography 5 played major role in water loss at the catchment as evapotranspiration and surface runoff were the dominant modulating processes. Monthly calibration/validation of the model yielded satisfactory results with NSE (0.66/0.67), R2 (0.67/0.67), PBIAS (8.2%/8.0%) and RSR (0.59/0.58). Nine sensitive parameters of which the catchment slope (CN2) ranked principal were found to control runoff amounts into the river. The model uncertainty was also quite low as the 95PPU enveloped about 50% of the observed streamflow within a width of 0.45 - 0.55. Furthermore, future streamflow predictions were modelled under RCP2.6, 10 RCP4.5 and RCP8.5 climatic scenarios, and two landuse scenarios, landuse category 1 and 2 (LU1 and LU2). An increasing trend of the downscaled rainfall totals between 2021 to 2050 for all RCPs were observed. This will positively impact streamflow generation at the catchment under LU1. There is an expected deficit of streamflow amounts under LU2 relative to LU1, and a marginal reduction as compared to the baseline. In general, the model proved efficient in determining the hydrology parameters in the catchment and therefore has potential to be used for further modelling of water quality and pollution to aid 15 effective water resource decisions at the catchment. 1 Introducti 2019-11-28T10:25:13Z 2023-04-19T01:27:44Z 2019-11-28T10:25:13Z 2023-04-19T01:27:44Z 2018 Article Hydrol. Earth Syst. Sci. Discuss., https://doi.org/10.5194/hess-2017-729 https://ir.knust.edu.gh/handle/123456789/11805 en application/pdf Hydrol. Earth Syst. Sci. Discuss. |
| spellingShingle | Osei, Marian Amoakowaah Amekudzi, Leonard Kofitse Wemegah, David Dotse Preko, Kwasi Gyawu, Emmanuella Serwaa Obiri-Danso, Kwasi Hydro-Climatic Modelling of an Ungauged Basin in Kumasi, Ghana |
| title | Hydro-Climatic Modelling of an Ungauged Basin in Kumasi, Ghana |
| title_full | Hydro-Climatic Modelling of an Ungauged Basin in Kumasi, Ghana |
| title_fullStr | Hydro-Climatic Modelling of an Ungauged Basin in Kumasi, Ghana |
| title_full_unstemmed | Hydro-Climatic Modelling of an Ungauged Basin in Kumasi, Ghana |
| title_short | Hydro-Climatic Modelling of an Ungauged Basin in Kumasi, Ghana |
| title_sort | hydro climatic modelling of an ungauged basin in kumasi ghana |
| url | https://ir.knust.edu.gh/handle/123456789/11805 |
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