Atmospheric models used for weather and climate prediction are traditionally formulated in a deterministic manner. In other words, given a particular state of the resolved scale variables, the most likely forcing from the sub-grid scale motion is estimated and used to predict the evolution of the large-scale flow. However, the lack of scale-separation in the…

Microcirculation and perfusion exemplify the mesoscale in physiological systems, bridging larger and smaller scale phenomena. Multiscale mathematical models represent a valuable tool to investigate and understand such phenomena, where a brute force computational approach is not viable yet. For microcirculation accurate models must comprise both interstitial and vascular compartments, along with their complex morphology. Transport…

Abstract The CICE sea ice model is used extensively by climate and Earth system research groups, and also by operational centers for applications such as numerical weather prediction and guidance for military operations.  This presentation introduces the physics represented by large-scale sea-ice models, discusses some of the challenges in applying sea-ice modeling tools developed for…

Abstract British mathematicians responded to the First World War in a variety of ways.  Some volunteered their mathematical skills for work at the Royal Aircraft Factory where they could experience the risky practice of flying, while others went to the National Physical Laboratory where, safely on the ground, they did experiments using wind tunnels.  Another…