... Abstract Wind turbine towers are being planned in ice covered regions subject to pressure ridges (e.g. the Great Lakes). Conical collars are often employed to reduce ice loads from level ice and their associated dynamics. For level ice, downward breaking cones have some advantages...

... Abstract We describe our work undertaken to analyse sea ice pressure ridge morphology in the Arctic ocean from Autonomous Underwater Vehicles (AUVs) and submarines. Details of cruises, from ship-based launches of large (7m) AUVs to hand deployed AUVs are given, as well as the first submarine...