The impact of climate and land-use changes on the hydrological processes of Owabi catchment from SWAT analysis

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dc.contributor.authorOsei, Marian Amoakowaah
dc.contributor.authorAmekudzi, Leonard Kofitse
dc.contributor.authorWemegah, David Dotse
dc.contributor.authorPreko, Kwasi
dc.contributor.authorGyawu, mmanuella Serwaa
dc.contributor.authorObiri-Danso, Kwasi
dc.date.accessioned2019-12-10T16:54:19Z
dc.date.accessioned2023-04-19T01:32:37Z
dc.date.available2019-12-10T16:54:19Z
dc.date.available2023-04-19T01:32:37Z
dc.date.issued2019-09
dc.descriptionAn article published by Journal of Hydrology: Regional Studies 25 (2019) 100620 and available at DOI: 10.1016/j.ejrh.2019.100620en_US
dc.description.abstractStudy region: The 69 km2 Owabi catchment in Ghana. Study focus: The Soil-Water-Assessment-Tool (SWAT) was used to assess the hydro-climatic variability resulting from anthropogenic activities from 1986 to 2015. Specifically, the model simulated historic and projected stream-flow and water balance. Future stream-flow projections were modelled for three climate ensembles under three different representative concentration pathways (RCPs) for two land-use categories. New hydrological insights for the region: Initial results revealed that forest and topography played major role in water loss, whereas evapotranspiration and surface runoff were the dominant modulating processes. Monthly calibration/validation of the model yielded acceptable results with NSE, R2, PBIAS and RSR values of 0.66/0.67, 0.67/0.67, 8.2%/8.0% and 0.59/0.58 respectively. Uncertainty was fairly low and the model enveloped about 50% of the observed stream-flow. The RCP projections for all land use categories showed decreasing rainfall and streamflow trends. The model proved efficient in determining the catchment hydrology parameters and has potential to be used for further modelling of water quality and pollution to aid in effective water management.en_US
dc.identifier.citationJournal of Hydrology: Regional Studies 25 (2019) 100620en_US
dc.identifier.urihttps://ir.knust.edu.gh/handle/123456789/11832
dc.language.isoenen_US
dc.publisherJournal of Hydrologyen_US
dc.subjectHydro-climateen_US
dc.subjectStream-flowen_US
dc.subjectWater resource managementen_US
dc.subjectClimate changeen_US
dc.subjectSWAT modelen_US
dc.titleThe impact of climate and land-use changes on the hydrological processes of Owabi catchment from SWAT analysisen_US
dc.typeArticleen_US
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