Trapping of waves by thin floating ice sheets

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It is shown that localised wave motions (often referred to edge waves or trapped modes) are capable of being supported by two complementary arrangements involving floating ice on water: a finite width ice floe of constant thickness floating on open water; and an open water channel – or lead – embedded in an ice-covered ocean. The search for such solutions is motivated by a simple observation, evidently not made before, that wavelengths of propagating waves in thin ice floe can be either greater or less than those of the same frequency on an unloaded water surface depending on
physical parameters in the problem. The existence of edge waves are confirmed by accurate computations of solutions to integral equations derived from the underlying boundary-value problems using Fourier transform methods.
Original languageEnglish
Number of pages21
JournalQuarterly Journal of Mechanics and Applied Mathematics
Early online date3 Sept 2018
Publication statusPublished - 1 Nov 2018


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