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arXiv · 2203.00388

A dissipative Nonlinear Schr\"{o}dinger model for wave propagation in the marginal ice zone

Alberto Alberello·Emilian Parau
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Abstract

Sea ice attenuates waves propagating from the open ocean. Here we model the evolution of energetic unidirectional random waves in the marginal ice zone with a nonlinear Schr\"{o}dinger equation, with a frequency dependent dissipative term consistent with current model paradigms and recent field observations. The preferential dissipation of high frequency components results in a concurrent downshift of the spectral peak that leads to a less than exponential energy decay, but at a lower rate compared to a corresponding linear model. Attenuation and downshift contrast nonlinearity, and nonlinear wave statistics at the edge tend to Gaussianity farther into the marginal ice zone.

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Alberto Alberello, Emilian Parau. 2022-03-01. A dissipative Nonlinear Schr\"{o}dinger model for wave propagation in the marginal ice zone. https://doi.org/10.1063/5.0089866

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