A risk-based approach to planning and managing water resources in a changing climate. Understanding the linkages of water resources to energy systems.
We analyse water resource systems to estimate risks to water supplies and devise robust strategies for adapting to climate change. We have pioneered risk-based approaches to defining and managing water security. We particularly focus upon the effects of hydrological variability, spatial dependence and non-stationarity. We integrate this climatological and hydrological understanding with simulation models of reservoirs, transfers and water use. We develop optimization methods to navigate trade-offs between competing goals for water resource systems. We model the economic impacts of droughts and water scarcity. We have developed the only large-scale water resources simulation model of all of England and Wales, which is now used by the Environment Agency and Ofwat to appraise strategic water resources options. Our expertise extends from the Thames river basin to water security hotspots worldwide, especially the Eastern Nile basin.
Majid, A., Mortazavi-Naeini, M. and Hall, J.W. (2021) Efficient pathways to zero-carbon energy use by water supply utilities: an example from London, UK, Environmental Research Letters.
Murgatroyd, A. and Hall, J.W. (2021) Regulation of freshwater use to restore ecosystems resilience, Climate Risk Management.
Doeffinger, T. and Hall, J.W. (2020) Water stress and productivity: an empirical analysis of trends and drivers, Water Resources Research.
Wheeler, K., Jeuland, M.A., Hall, J.W., Zagona, E. and Whittington, D. (2020) Understanding and managing new risks on the Nile with the Grand Ethiopian Renaissance Dam, Nature Communications.