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Ocean wave propagation in the marginal ice zone: On the transition from consolidated to broken ice covers

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MWS - Mathematical theory and applications of multiple wave scattering

The surfaces of the high latitude oceans are frozen into a layer of “sea ice”, which plays an important role in the global climate by reflecting the sun’s rays. Ocean surface waves propagate from the open ocean into the sea ice covered ocean and break up the ice cover, leaving it more vulnerable to melting. The ice cover attenuates wave energy over distance, so that the breakup is confined to a region known as the marginal ice zone. Field observations have been interpreted as indicating the non-intuitive behaviour of attenuation decreasing following breakup. I will present a mathematical model that explains the observations in terms of a combination of attenuation and ice-edge reflection, backed by laboratory experiments.

This talk is part of the Isaac Newton Institute Seminar Series series.

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