The paper “Monge–Ampère geometry and the Eady problem“, co-authored by Roberto D’Onofrio (former PhD student at Surrey), Giovanni Ortenzi (University of Torino), and Ian Roulstone, has been published today (7 May) in Proceedings A of the Royal Society of London. The paper formalizes the idea of a Chynoweth–Sewell front and illuminates its geometrical meaning from the viewpoint of Monge–Ampère geometry. This extends their previous work on the semigeostrophic model to dynamically forming singularities. They use the notion of a Chynoweth–Sewell front to characterize the classical Eady problem and its known solutions in geometrical terms. The published version is available here, and the final form preprint is available on the arxiv (link here). The image below shows Figure 1 and 2 of the published paper.