Your search found 9 records
1 National Dialogue on Dams and Development in Ghana. 2007. First Ghana Dams Forum, "Using dams for development: institutionalising the multi-stakeholder process in Ghana," Accra, Ghana, 4 September 2007. Accra, Ghana: National Dialogue on Dams and Development in Ghana; Accra, Ghana: International Water Management Institute (IWMI) 41p.
Dams ; Development projects ; Environmental effects ; Social participation ; Living conditions ; Resettlement ; Compensation / Ghana / Volta Hydropower Project / Akosombo Dam / Kpong Dam / Bui Dam
(Location: IWMI HQ Record No: H041908)
(3.24 MB)
2 Raschid-Sally, Liqa; Akoto-Danso, Edmund Kyei; Kalitsi, E. A. K.; Ofori, B. D.; Twum-Korangteng, R. 2008. The resettlement experience of Ghana analyzed via case studies of the Akosombo and Kpong dams. Paper presented at the 9th Annual Symposium on Poverty Research in Sri Lanka, Exploring Experiences of Resettlement, November 2008. 24p.
Dams ; Development projects ; Resettlement ; Case studies ; Hydroelectric schemes ; Irrigation programs / Ghana / Akosombo dam / Kpong dam / Bui gorge / Black Volta
(Location: IWMI HQ Call no: e-copy only Record No: H041920)
http://ghanadamsdialogue.iwmi.org/Data/Sites/2/Documents/The%20Resettlement%20Experience%20of%20Ghana%20-%20Final%20Paper.pdf
https://vlibrary.iwmi.org/PDF/H041920.pdf
https://vlibrary.iwmi.org/PDF/H041920.pdf
(427.07 KB)
3 Akoto-Danso, Edmund Kyei; Raschid-Sally, Liqa; Koranteng, R. T. (Eds.) 2009. Ghana Dams Dialogue Newsletter: a quarterly publication of the Ghana Dams Forum. Ghana Dams Dialogue Newsletter, 1. 8p.
(Location: IWMI HQ Call no: e-copy only Record No: H042474)
4 Ofosu, E. A.; Mul, Marloes; Boateng-Gyimah, M.; Annor, F.; Ampomah, B. Y. 2017. Overview of the re-operation and re-optimisation of the Akosombo and Kpong Dams Project. In Ntiamoa-Baidu, Y.; Ampomah, B. Y.; Ofosu, E. A. (Eds.). Dams, development and downstream communities: implications for re-optimising the operations of the Akosombo and Kpong Dams in Ghana. Tema, Ghana: Digibooks Ghana Ltd. pp.3-25.
Dam construction ; Water power ; Water allocation ; Downstream ; Living standards ; Weeds ; Climate change ; Socioeconomic environment / Ghana / Akosombo / Kpong Dam
(Location: IWMI HQ Call no: e-copy only Record No: H048402)
5 Balana, Bedru B.; Mul, Marloes L.; Mante, Yaw. 2017. The economics of re-operating the Akosombo and Kpong hydropower dams. In Ntiamoa-Baidu, Y.; Ampomah, B. Y.; Ofosu, E. A. (Eds.). Dams, development and downstream communities: implications for re-optimising the operations of the Akosombo and Kpong Dams in Ghana. Tema, Ghana: Digibooks Ghana Ltd. pp.277-301.
Economic development ; Dam construction ; Water power ; Ecosystem services ; Cost benefit analysis ; Irrigated farming ; Health hazards ; Fisheries ; Aquatic weeds ; Sediment ; Infrastructure ; Domestic water / Ghana / Akosombo Dam / Kpong Dam
(Location: IWMI HQ Call no: e-copy only Record No: H048405)
6 Mul, Marloes L.; Balana, Bedru; Annor, F. O.; Boateng-Gyimah, M.; Ofosu, E. A.; Dokyi, J. 2017. Framework for re-operating the large hydropower dams to improve local livelihoods and poverty reduction. In Ntiamoa-Baidu, Y.; Ampomah, B. Y.; Ofosu, E. A. (Eds.). Dams, development and downstream communities: implications for re-optimising the operations of the Akosombo and Kpong Dams in Ghana. Tema, Ghana: Digibooks Ghana Ltd. pp.303-318.
Water power ; Water availability ; Dam construction ; Living standards ; Downstream ; Local communities ; Poverty ; River basins ; Economic aspects ; Social aspects ; Investment ; Ecosystem services ; Case studies / Ghana / Volta River / Akosombo Dam / Kpong Dam
(Location: IWMI HQ Call no: e-copy only Record No: H048406)
7 Logah, F. Y.; Amisigo, A. B.; Obuobie, E.; Kankam-Yeboah, K. 2017. Floodplain hydrodynamic modelling of the lower Volta River in Ghana. Journal of Hydrology: Regional Studies, 14:1-9. [doi: https://doi.org/10.1016/j.ejrh.2017.09.002]
Floodplains ; Hydrodynamics ; Models ; Rivers ; Stream flow ; Sediment ; Geomorphology ; Dams ; Downstream ; Communities ; Living standards / Ghana / Lower Volta River / Akosombo Dam / Kpong Dam
(Location: IWMI HQ Call no: e-copy only Record No: H048495)
https://www.sciencedirect.com/science/article/pii/S2214581817301635/pdfft?md5=8175e1742b62ee768daad95eae85209a&pid=1-s2.0-S2214581817301635-main.pdf
https://vlibrary.iwmi.org/pdf/H048495.pdf
https://vlibrary.iwmi.org/pdf/H048495.pdf
(1.16 MB) (1.16 MB)
The impacts of dam releases from re-operation scenarios of the Akosombo and Kpong hydropower facilities on downstream communities along the Lower Volta River were examined through hydrodynamic modelling using the HEC-RAS hydraulic model. The model was used to simulate surface water elevation along the river reach for specified discharge hydrographs from proposed re-operation dam release scenarios. The morphology of the river and its flood plains together with cross-sectional profiles at selected river sections were mapped and used in the hydrodynamic modelling. In addition, both suspended and bed-load sediment were sampled and analysed to determine the current sediment load of the river and its potential to carry more sediment. The modelling results indicate that large areas downstream of the dam including its flood plains would be inundated if dam releases came close to or exceeded 2300 m3 /s. It is therefore recommended to relocate communities along the banks and in the flood plains of the Lower Volta River when dam releases are to exceed 2300 m3 /s. Suspended sediment transport was found to be very low in the Lower Volta River and the predominant soil type in the river banks and bed is sandy soil. Thus, the geomorphology of the river can be expected to change considerably with time, particularly for sustained high releases from the Akosombo and Kpong dams. The results obtained from this study form a basis for assessing future sedimentation problems in the Lower Volta River and for underpinning the development of sediment control and management strategies for river basins in Ghana.
8 Ntiamoa-Baidu, Y.; Ampomah, B. Y.; Ofosu, E. A. (Eds.) 2017. Dams, development and downstream communities: implications for re-optimising the operations of the Akosombo and Kpong Dams in Ghana. Tema, Ghana: Digibooks Ghana Ltd. 466p.
Dams ; Downstream ; Community development ; Local communities ; Development projects ; Environmental flows ; Environmental impact ; River basin management ; Hydrology ; Fisheries ; Living standards ; Biodiversity ; Aquatic environment ; Aquatic weeds ; Groundwater recharge ; Rain ; Temperature ; Water power ; Energy generation ; Restoration ecology ; Socioeconomic environment ; Economic aspects ; Poverty ; Lakes ; Corporate culture ; Public health ; Drinking water ; Water supply ; Mapping ; Case studies / Ghana / Akosombo Dam / Kpong Dam / Lower Volta River / Volta Lake
(Location: IWMI HQ Call no: 627.8 G200 NTI Record No: H048570)
9 Owusu, A.; Salazar, J. Z.; Mul, M.; van der Zaag, P.; Slinger, J. 2023. Quantifying the trade-offs in re-operating dams for the environment in the Lower Volta River. Hydrology and Earth System Sciences, 27(10):2001-2017. [doi: https://doi.org/10.5194/hess-27-2001-2023]
Dams ; River basins ; Ecosystem services ; Environmental flows ; Irrigation ; Hydropower ; Reservoirs ; Flood control ; Climate change ; Climate prediction ; Water users ; Communities / Ghana / Lower Volta River Basin / Akosombo Dam / Kpong Dam
(Location: IWMI HQ Call no: e-copy only Record No: H052038)
https://hess.copernicus.org/articles/27/2001/2023/hess-27-2001-2023.pdf
https://vlibrary.iwmi.org/pdf/H052038.pdf
https://vlibrary.iwmi.org/pdf/H052038.pdf
(2.98 MB) (2.98 MB)
The construction of the Akosombo and Kpong dams in the Lower Volta River basin in Ghana changed the downstream riverine ecosystem and affected the lives of downstream communities, particularly those who lost their traditional livelihoods. In contrast to the costs borne by those in the vicinity of the river, Ghana has enjoyed vast economic benefits from the affordable hydropower, irrigation schemes and lake tourism that developed after construction of the dams. Herein lies the challenge; there exists a trade-off between water for river ecosystems and related services on the one hand and anthropogenic water demands such as hydropower or irrigation on the other. In this study, an Evolutionary Multi-Objective Direct Policy Search (EMODPS) is used to explore the multi-sectoral trade-offs that exist in the Lower Volta River basin. Three environmental flows, previously determined for the Lower Volta, are incorporated separately as environmental objectives. The results highlight the dominance of hydropower production in the Lower Volta but show that there is room for providing environmental flows under current climatic and water use conditions if the firm energy requirement from Akosombo Dam reduces by 12 % to 38 % depending on the environmental flow regime that is implemented. There is uncertainty in climate change effects on runoff in this region; however multiple scenarios are investigated. It is found that climate change leading to increased annual inflows to the Akosombo Dam reduces the trade-off between hydropower and the environment as this scenario makes more water available for users. Furthermore, climate change resulting in decreased annual inflows provides the opportunity to strategically provide dry-season environmental flows, that is, reduce flows sufficiently to meet low flow requirements for key ecosystem services such as the clam fishery. This study not only highlights the challenges in balancing anthropogenic water demands and environmental considerations in managing existing dams but also identifies opportunities for compromise in the Lower Volta River.
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