A model for wave scattering in the marginal ice zone based on a two-dimensional floating-elastic-plate solution

Authors: Kohout, Alison L.; Meylan, Michael H.

Source: Annals of Glaciology, Volume 44, Number 1, November 2006 , pp. 101-107(7)

Publisher: International Glaciological Society

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Abstract:

We present a model for wave propagation in the marginal ice zone (MIZ). The model is based on a two-dimensional linear water wave floating-elastic-plate solution in the frequency domain using a matched eigenfunction expansion. The model is fully coherent so the results are dependent on exact geometry, and we show firstly that this dependence can be effectively removed by averaging over random floe lengths. We present a range of predictions from the model which show various curves of transmitted energy as a function of the floe thickness, number of floes and wave period. These curves show that it is possible with this simple model to make predictions about wave intensity with distance into the MIZ. The results predict that the MIZ acts as a low-pass filter and and that the filtering is strongly dependent on floe thickness and number but that it is independent of floe length.

Document Type: Research article

DOI: 10.3189/172756406781811844

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