Your search found 3 records
1 Ololade, O. O.; Esterhuyse, S.; Levine, A. D. 2017. The water-energy-food nexus from a South African perspective. In Salam, P. A.; Shrestha, S.; Pandey, V. P.; Anal, A. K. (Eds.). Water-energy-food nexus: principles and practices. Indianapolis, IN, USA: Wiley. pp.129-140.
Water resources ; Water availability ; Food security ; Energy resources ; Energy demand ; Nexus ; Water scarcity ; Sustainable development ; Developing countries ; Environmental protection ; Land use ; Policy making ; Electricity generation ; Resource management ; Case studies / South Africa
(Location: IWMI HQ Call no: IWMI Record No: H048743)
2 Bessah, E.; Raji, A. O.; Taiwo, O. J.; Agodzo, S. K.; Ololade, O. O.. 2020. The impact of varying spatial resolution of climate models on future rainfall simulations in the Pra River Basin (Ghana). Journal of Water and Climate Change, 11(4):1263-1283. [doi: https://doi.org/10.2166/wcc.2019.258]
Rainfall patterns ; General circulation models ; Simulation ; Forecasting ; Performance evaluation ; Climate change ; Temperature ; Dry season ; Precipitation ; River basins / Africa / Ghana / Pra River Basin
(Location: IWMI HQ Call no: e-copy only Record No: H050150)
(0.91 MB)
This work compares future projections of rainfall over the Pra River Basin (Ghana) using data from five climate models for the period 2020–2049, as referenced to the control period 1981–2010. Bias-correction methods were applied where necessary and models' performances were evaluated with Nash–Sutcliffe Efficiency, root-mean-square error and coefficient of determination. Standardised Anomaly Index (SAI) was used to determine variability. The onset and cessation dates and length of the rainy season were determined by modifying the Walter–Olaniran method. The ensemble means of the models projected a 1.77% decrease in rainfall. The SAI showed that there would be drier than normal years with the likelihood of drought occurrence in 2021, 2023, 2031 and 2036. The findings showed that high-resolution models (=25 km) were more capable of simulating rainfall at the basin scale than mid-resolution models (26–150 km) and projected a 20.13% increase. Therefore, the rainfall amount is expected to increase in the future. However, the projected increase in the length of the dry season by the ensemble of the models suggested that alternative sources of water would be necessary to supplement rainfed crop production for food security.
3 Busayo, E. T.; Kalumba, A. M.; Afuye, G. A.; Olusola, A. O.; Ololade, O. O.; Orimoloye, I. R. 2022. Rediscovering South Africa: flood disaster risk management through ecosystem-based adaptation. Environmental and Sustainability Indicators, 14:100175. (Online first) [doi: https://doi.org/10.1016/j.indic.2022.100175]
Flooding ; Disaster risk management ; Climate change adaptation ; Ecosystem services ; Urban areas ; Risk assessment ; Human activity ; Biodiversity ; Vegetation ; Infrastructure ; Communities / South Africa
(Location: IWMI HQ Call no: e-copy only Record No: H051059)
https://www.sciencedirect.com/science/article/pii/S2665972722000071/pdfft?md5=942f7eca9e5a5d51bed1c893cadd0651&pid=1-s2.0-S2665972722000071-main.pdf
https://vlibrary.iwmi.org/pdf/H051059.pdf
https://vlibrary.iwmi.org/pdf/H051059.pdf
(1.87 MB) (1.87 MB)
The emergence of ecosystem-based adaptation (EbA) has created a shift from the conventional adaptation approaches often accompanied by high costs, including conflicting interests associated with the dense urban fabric and inflexibility. Therefore, EbA presents a potential for more comprehensive, cost-efficient, multifunctional and multidimensional measures in flood disaster risk management. Essentially, EbA integrates biodiversity and ecosystem services as an approach to climate change adaptation and disaster risk reduction. This study adopts descriptive and exploratory analytical approaches aimed at assessing the trends of flood events in South Africa and their potential risk management through EbA. The study reveals that between 1959 and 2019, several major floods have occurred, resulting in losses of life and livelihoods and significant infrastructure damages among others. Recovery has taken years and needed continuous investment. Unfortunately, many communities have not been able to “bounce back/bounce forward”, despite all these efforts. This study revealed that EbA strategies can be instituted regionally and nationally to offer efficient flood disaster adaptation or mitigation in flood-prone areas. In general, utilising EbA can stabilise or reduce flood impacts, minimise environmental impacts and damages associated with flood disasters by developing innovative EbA strategies. Therefore, the study recommends an increased awareness of EbA strategies to enhance universal adoption in ameliorating flood risk.
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