John Ashcroft is an atmospheric sciences expert at JBA Risk Management, specializing in the representation and quantification of risk from high-impact weather events and extreme weather seasons. His work focuses on developing innovative methods for generating large-scale flood event catalogues, essential for assessing risk. John has a PhD in fluid dynamics from the University of Leeds, with a focus on tropical meteorology and the predictability of tropical cyclones. He is interested in exploring new approaches to understanding the full spectrum of plausible extreme weather scenarios.?