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Title: Wave attenuation by sea ice turbulence
Authors: Thomson, J.
Voermans, J. J.
Babanin, A. V.
Smith, M. M.
Shen, Hayley H.
Keywords: Engineering::Environmental engineering
Wave Attenuation
Sea Ice Turbulence
Issue Date: 2019
Source: Voermans, J. J., Babanin, A. V., Thomson, J., Smith, M. M., & Shen, H. H. (2019). Wave attenuation by sea ice turbulence. Geophysical Research Letters, 46(12), 6796-6803. doi:10.1029/2019GL082945
Series/Report no.: Geophysical Research Letters
Abstract: The dissipation of wave energy in the marginal ice zone is often attributed to wave scattering and the dissipative mechanisms associated with the ice layer. In this study we present observations indicating that turbulence generated by the differential velocity between the sea ice cover and the orbital wave motion may be an important dissipative mechanism of wave energy. Through field measurements of under‐ice turbulence dissipation rates in pancake and frazil ice, it is shown that turbulence‐induced wave attenuation coefficients are in agreement with observed wave attenuation in the marginal ice zone. The results suggest that the turbulence‐induced attenuation rates can be parameterized by the characteristic wave properties and a coefficient. The coefficient is determined by the ice layer properties.
ISSN: 0094-8276
DOI: 10.1029/2019GL082945
Rights: © 2019 American Geophysical Union. All rights reserved. This paper was published in Geophysical Research Letters and is made available with permission of American Geophysical Union.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:NEWRI Journal Articles

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