Climate, Land Use and Land Cover Changes in the Bandama Basin (Côte D’Ivoire, West Africa) and Incidences on Hydropower Production of the Kossou Dam

Kouame, Yao Morton; Obahoundje, Salomon; Diedhiou, Arona; François, Baptiste; Amoussou, Ernest; Anquetin, Sandrine; Didi, Regis; Kouassi, Lazare Kouakou; Bi, Vami Hermann Nguessan; Soro, Emile Gneneyougo; Yao, Étienne Kouakou

doi:10.3390/land8070103

Cited by 11 publications

(3 citation statements)

References 51 publications

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“…This could be attributed to climate change impacts and land use and land cover changes in the Bandama basin. In general, climate change and land use and land cover change play significant roles [26,27,29,53,54] to water availability. However, studies that distinguish the impact of climate change and land use and land cover changes or the combined effect of the two are limited.…”

Section: Resultsmentioning

confidence: 99%

Sustainable Hydroelectric Dam Management in the Context of Climate Change: Case of the Taabo Dam in Côte D’Ivoire, West Africa

et al. 2019

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Management of hydroelectric dams is an aspect of sustainability that comes with resolving problems locally. The use of global indicators has not been a sustainable solution, thus the need for local indicators. Besides, current sustainability assessment tools lack the integration of climate, making assessments in a climate change context impossible. In this paper, we present management and sustainability assessment in a climate change context using sustainability indicators. We modeled a change in the climate using normal, moderate, and extreme climate conditions defined by Standardized Precipitation Indices (SPI) values. Out of 36 years analyzed, 24 years fall in the near-normal climate regime, and the remaining 12 years in moderate and extreme conditions, making near-normal climate regime the basis for managing the Taabo Dam. The impact of climate, techno-economic, and socio-environmental indicators on sustainability were investigated, and the results were analyzed according to scenarios. Climate adaptation shows higher sustainability indices than techno-economic and socio-environmental scenarios. Probability matrices show high and low values, respectively, for environmental and flooding indicators. Risk matrices, on the other hand, show that even with small probability values, risks still exist, and such small probabilities should not be taken as an absence of risk. The study reveals that sustainability can be improved by integrating climate into existing assessment methods.

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Section: Resultsmentioning

confidence: 99%

Sustainable Hydroelectric Dam Management in the Context of Climate Change: Case of the Taabo Dam in Côte D’Ivoire, West Africa

et al. 2019

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“…Any changes in land cover in the basin may result in changes in precipitation and discharge, which may affect the efficiency of the hydropower plant. For instance, Obahoundje et al (2018) showed how LULCC may influence the hydrology of three transboundary basins in WA, and Kouame et al (2019) illustrated how LULCC impacted the Kossou hydropower generation.…”

Section: Nexus Between Climate Land and Hydropower In Wamentioning

confidence: 99%

Potential impacts of climate, land use and land cover changes on hydropower generation in West Africa: a review

Obahoundje

Diedhiou

2022

Environ. Res. Lett.

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This study aims to review the existing literature on the past and future effects of climate, land use, and land cover changes on hydropower generation in West Africa (WA), based on listings in the Scopus and Google Scholar databases. This review shows that several African hydropower plants have experienced repeated power disruptions over the last three decades due to climate change and variability but it is less documented how increasing land use and land cover changes around the major dams have impacted the hydrological system and the hydropower generation. In the future, the risks of hydropower in WA may not be equally distributed within a country or region. Despite uncertainties in precipitation and on impacts on streamflow and water level in major basins, climate change is likely to reduce the available water over the range of 10%–20% (15%–40%) for the RCP4.5 (RCP8.5) scenario by 2050, which may considerably affect the water demand across all sectors, including hydropower. However, in the Kainji dam (Niger River basin), models project an increase in rainfall favorable to hydropower production for both RCP4.5 and RCP8.5. In contrast, within the Black Volta sub-basin, the intensification of land use is predicted to favor runoff and, consequently, an increase in the generation of Bui hydropower in the near future, even though models predict a rainfall decrease. This increase in land use for agriculture to feed a growing population has other adverse effects that need to be assessed, namely sedimentation and siltation, which are harmful to hydropower plants. Finally, the combined impact of climate and land use changes on the efficiency of hydroelectric infrastructure in WA is not well documented, while sustainable planning and investments in the hydropower sector require consideration of the nexus between climate, land use changes, and water.

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“… 3.An increase in ET by up to 0.84 %, 59.8 %, and 55.5 % under LULC, climate, and combined climate and LULC change 4.The magnitude of the shift in emissions under RCP8.5 is greater than that under RCP2.6 and RCP4.5. [ 77 ] Climate, Land Use and Land Cover Changes in the Bandama Basin (Côte D'Ivoire, West Africa) and Incidences on Hydropower Production of the Kossou Dam LULC Data Hydroclimatic and Energy Production Data Kriging method, Mann–Kendall test N/A 1.The outcome reveal that water bodies areas and LU have increased by 1.89 %/year and 11.56 %/year respectively 2.Streamflow presents greater change in magnitude compared to rainfall 3.Streamflow varies greatly than the rainfall does annually except during driest months possibly due to LULC change. 4.Kossou hydropower generation is significantly decreasing (p-value 0.007) at both monthly and annual scales possibly due to water abstraction at upstream [ 78 ] Land Use and Land Cover Changes under Climate Uncertainty: Modelling the Impacts on Hydropower Production in Western Africa Land Use and Land Cover Change data Rainfall and Stream Flow data WEAP Model No data 1.Historical rainfall analysis and stream flow changes shows variability in the annual coefficient of rainfall and stream flow as 8.6 % and 60.85 % respectively.…”

Section: Introductionmentioning

confidence: 99%

Impacts of LULC and climate changes on hydropower generation and development: A systematic review

Ahialey,

Kabo–Bah,

Gyamfi

2023

Heliyon

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Climate, Land Use and Land Cover Changes in the Bandama Basin (Côte D’Ivoire, West Africa) and Incidences on Hydropower Production of the Kossou Dam

Cited by 11 publications

References 51 publications

Sustainable Hydroelectric Dam Management in the Context of Climate Change: Case of the Taabo Dam in Côte D’Ivoire, West Africa

Sustainable Hydroelectric Dam Management in the Context of Climate Change: Case of the Taabo Dam in Côte D’Ivoire, West Africa

Potential impacts of climate, land use and land cover changes on hydropower generation in West Africa: a review

Impacts of LULC and climate changes on hydropower generation and development: A systematic review

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