Robel Geressu

Robel Geressu
University College London | UCL · Department of Civil, Environmental and Geomatic Engineering

Doctor of Philosophy

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11
Publications
2,713
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113
Citations

Publications

Publications (11)
Article
Full-text available
Water resource system planning is complicated by uncertainty on the magnitude and direction of climate change. Therefore, developments such as new infrastructure or changed management rules that would work acceptably well under a diverse set of future conditions (i.e., robust solutions) are preferred. Robust multi-objective optimisation can help id...
Data
Despite awareness of climate impacts on development, climate variability and future change have received limited attention in investment decisions. We examined past and future climate variability with the aim to understand the main source of climate risk to development plans across the water-energy-food sectors in south Eastern Africa, a relatively...
Article
Full-text available
The need to assess major infrastructure performance under a changing climate is widely recognized yet rarely practiced, particularly in rapidly growing African economies. Here, we consider high-stakes investments across the water, energy, and food sectors for two major river basins in a climate transition zone in Africa. We integrate detailed inter...
Article
Full-text available
The need to assess major infrastructure performance under a changing climate is widely recognised yet rarely practised, particularly in rapidly growing African economies. Here we consider high stakes investments across the water-energy-food sectors for two major river basins in a climate transition zone in Africa. We integrate detailed interpretati...
Article
Uncertainty in long-term projections of future climate can be substantial and presents a major challenge to climate change adaptation planning. This is especially so for projections of future precipitation in most tropical regions, at the spatial scale of many adaptation decisions in water-related sectors. Attempts have been made to constrain the u...
Chapter
Full-text available
The need to stress test designs and decisions about major infrastructure under climate change conditions is increasingly being recognised. This chapter explores new ways to understand and—if possible—reduce the uncertainty in climate information to enable its use in assessing decisions that have consequences across the water, energy, food and envir...
Article
Full-text available
Abstract Many river basins in the Global South are undergoing rapid development with major implications for the interdependent water‐energy‐food‐environmental (WEFE) “nexus” sectors. A range of views on the extent to which such natural‐human systems should be developed typically exists. The perceived best investments in river basins depend on how o...
Article
Full-text available
This work proposes a many objective approach where a schedule of new dams is optimised along-side dam selections and operating rules. We investigate the extent to which changing management rules during infrastructure system expansion increases the ability to identify best performing plans. The approach links river basin simulation to many objective...
Conference Paper
This work proposes a multi-criteria optimization-based approach for supporting the negotiated design of multireservoir systems. The research addresses the multi-reservoir system design problem (selecting among alternative options, reservoir sizing), the capacity expansion problem (timing the activation of new assets and the filling of new large res...
Article
Full-text available
Multi-reservoir system planners should consider how new dams impact downstream reservoirs and the potential contribution of each component to coordinated management. We propose an optimized multi-criteria screening approach to identify best performing designs, i.e., the selection, size and operating rules of new reservoirs within multi-reservoir sy...

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