Assessing climate model accuracy and future climate change in Ghana's Savannah regions

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dc.creatorIncoom, A. B. M.
dc.creatorAdjei, K. A.
dc.creatorOdai, S. N.
dc.creatorAkpoti, Komlavi
dc.creatorSiabi, E. K.
dc.creatorAwotwi, A.
dc.date2023-07-01
dc.date2023-07-31T23:51:21Z
dc.date2023-07-31T23:51:21Z
dc.date.accessioned2026-06-27T18:28:19Z
dc.descriptionThis study aimed to compare the performance of six regional climate models (RCMs) in simulating observed and projecting future climate in the Savannah zone of Ghana, in order to find suitable methods to improve the accuracy of climate models in the region. The study found that the accuracy of both individual RCMs and their ensemble mean improved with bias correction, but the performance of individual RCMs was dependent on location. The projected change in annual precipitation indicated a general decline in rainfall with variations based on the RCM and location. Projections under representative concentration pathway (RCP) 8.5 were larger than those under RCP 4.5. The changes in mean temperature recorded were 1 °C for the 2020s for both RCPs, 1–4 °C for the 2050s under both RCPs, and 1– 4 °C under RCP 4.5, and from 2 to 8 °C for the 2080s. These findings will aid farmers and governments in the West African subregion in making informed decisions and planning cost-effective climate adaptation strategies to reduce the impact of climate change on the ecosystem. The study highlights the importance of accurate climate projections to reduce vulnerability to climate change and the need to improve climate models in projecting climate in the West African subregion.
dc.identifierhttps://hdl.handle.net/10568/131358
dc.identifier.urihttp://hdl.handle.net/123456789/156892
dc.languageen
dc.publisherIWA Publishing
dc.rightsOpen Access
dc.sourceIncoom, A. B. M.; Adjei, K. A.; Odai, S. N.; Akpoti, Komlavi; Siabi, E. K.; Awotwi, A. 2023. Assessing climate model accuracy and future climate change in Ghana's Savannah regions. Journal of Water and Climate Change, 14(7):2362-2383. [doi: https://doi.org/10.2166/wcc.2023.070]
dc.subjectclimate models
dc.subjectperformance assessment
dc.subjectclimate prediction
dc.subjectclimate change adaptation
dc.subjectstrategies
dc.subjectprecipitation
dc.subjectrainfall patterns
dc.subjecttemperature
dc.subjectweather forecasting
dc.subjectsavannahs
dc.titleAssessing climate model accuracy and future climate change in Ghana's Savannah regions
dc.typeJournal Article

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Instituto Internacional para el Manejo del Agua (IWMI)