The Department of Applied Mathematics and Theoretical Physics (DAMTP) carries out research of world class excellence in many areas of fluid dynamics and wave propagation, in addition to its work in cosmology, quantum computing and other leading-edge areas of theoretical physics. Research fields relevant to this proposal include geophysical (including ocean) fluid dynamics, atmospheric dynamics, turbulence, acoustic wave theory and stochastic wave propagation. The Sea Ice and Polar Oceans Group (SIPOG) works on sea ice properties and dynamics, with international links and extensive field experience - in fact it is the only group of sea ice researchers in the UK who specialise in field operations on polar ice sheets. DAMTP has, in addition, a wide range of expertise in ocean acoustics, solid mechanics (relevant to ice studies), theoretical physics, numerical methods and computing techniques as well as laboratory facilities such as a recently constructed set of cold rooms. The Department is graded *5 in the latest Research Assessment Exercise of the UK Government, the highest possible rating.