Laboratory Experiment of Wave Propagation Through Different Ice Covers

Monday, 15 December 2014
Hayley H Shen1, Xin Zhao1, Christopher John Callinan1, Jeremy Wilkinson2 and Karl-Ulrich Evers3, (1)Clarkson University, Potsdam, NY, United States, (2)NERC British Antarctic Survey, Cambridge, United Kingdom, (3)Hamburgische Schiffbau-Versuchsanstalt GmbH, Arctic Technology, Hamburg, Germany
A laboratory experiment of monochromatic waves propagating through three different ice covers was conducted in December 2013 at the Hamburg Ship Model Basin. This talk presents the preliminary results. The three types of ice covers are: grease ice, pancake ice, and fragmented floes. These types of ice covers are commonly found in the marginal ice zone. The first two are present during ice formation from open water in a wave field. They are found near the ice edge or in leads and polynyas. The third one is formed as a continuous ice sheet or large ice floes fracture due to wave, wind stress, or dynamic motion of the ice cover as a whole. The change of wave speed, wavelength, and wave amplitude are determined. These results are compared to previous laboratory and field studies. The possibility of extending the laboratory results to field scale is discussed.