Please use this identifier to cite or link to this item: http://ir.library.ui.edu.ng/handle/123456789/8533
Title: Hydrological responses to climate and land use changes: the paradox of regional and local climate effect in the Pra River Basin of Ghana
Authors: Bessah, E.
Raji, A. O.
Taiwo, O. J.
Agodzo, S. K.
Ololade, O. O.
Strapasson, A.
Keywords: Climate change
InVEST model
Land use land cover change
Regional climate models
Pra River Basin
SDSM-DC
Water yield
Issue Date: 2020
Publisher: Elsevier Ltd.
Abstract: Study Region: Pra River Basin, Ghana. Study Focus: The study modelled the changes in water yield using regional, sub-regional and local climate conditions from modelling outputs at spatial resolutions of 44 km, 12 km and 0.002 km respectively to drive the Integrated Valuation of Ecosystem Services and Trade-offs model at three time periods of land use land cover (LULC). Changes in historical water yield (simulated for 1986, 2002 & 2018 LULC using the mean climatic parameters from 1981-2010) and future scenario (simulated for 2018 LULC using the mean climatic parameters from 2020-2049) for annual, seasonal and monthly periods were assessed. New Hydrological Insights for the Region: The results show that future annual water yield could change by -46%, -48%, +44% and -35% under the regional, sub-regional, local and ensemble mean of the climate scenarios respectively. Seasonal water yield from the ensemble mean of the future climate scenario was projected to decrease between 2-16 mm, with a mean decrease of 33.39% during the December–February season. There was no directional effect of spatial resolution on water yield. The future period could be impacted by both drought and flood. We recommend that re/afforestation should be encouraged to improve infiltration and reduce deforestation which was 2.27% per annum in the assessed period to prevent flood causing runoffs, while irrigation technology will help to improve resilience to drought.
URI: http://ir.library.ui.edu.ng/handle/123456789/8533
ISSN: 2214-5818
Appears in Collections:scholarly works

Files in This Item:
File Description SizeFormat 
(35) ui_art_bessah_hydrological_2020.pdf3.75 MBAdobe PDFThumbnail
View/Open


Items in UISpace are protected by copyright, with all rights reserved, unless otherwise indicated.