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Modelling attenuation of irregular wave fields by artificial ice floes in the laboratory

A summary is given on the utility of laboratory experiments for gaining understanding of wave attenuation in the marginal ice zone, as a complement to field observations, theory and numerical models. It is noted that most results to date are for regular incident waves, which, combined with the highl...

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Detalles Bibliográficos
Autores principales: Toffoli, A., Pitt, J. P. A., Alberello, A., Bennetts, L. G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9653260/
https://www.ncbi.nlm.nih.gov/pubmed/36088929
http://dx.doi.org/10.1098/rsta.2021.0255
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author Toffoli, A.
Pitt, J. P. A.
Alberello, A.
Bennetts, L. G.
author_facet Toffoli, A.
Pitt, J. P. A.
Alberello, A.
Bennetts, L. G.
author_sort Toffoli, A.
collection PubMed
description A summary is given on the utility of laboratory experiments for gaining understanding of wave attenuation in the marginal ice zone, as a complement to field observations, theory and numerical models. It is noted that most results to date are for regular incident waves, which, combined with the highly nonlinear wave–floe interaction phenomena observed and measured during experimental tests, implies that the attenuation of regular waves cannot necessarily be used to infer the attenuation of irregular waves. Two experiments are revisited in which irregular wave tests were conducted but not previously reported, one involving a single floe and the other a large number of floes, and the transmission coefficients for the irregular and regular wave tests are compared. The transmission spectra derived from the irregular wave tests agree with the regular wave data but are overpredicted by linear models due to nonlinear dissipative processes, regardless of floe configuration. This article is part of the theme issue ‘Theory, modelling and observations of marginal ice zone dynamics: multidisciplinary perspectives and outlooks’.
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spelling pubmed-96532602022-11-14 Modelling attenuation of irregular wave fields by artificial ice floes in the laboratory Toffoli, A. Pitt, J. P. A. Alberello, A. Bennetts, L. G. Philos Trans A Math Phys Eng Sci Articles A summary is given on the utility of laboratory experiments for gaining understanding of wave attenuation in the marginal ice zone, as a complement to field observations, theory and numerical models. It is noted that most results to date are for regular incident waves, which, combined with the highly nonlinear wave–floe interaction phenomena observed and measured during experimental tests, implies that the attenuation of regular waves cannot necessarily be used to infer the attenuation of irregular waves. Two experiments are revisited in which irregular wave tests were conducted but not previously reported, one involving a single floe and the other a large number of floes, and the transmission coefficients for the irregular and regular wave tests are compared. The transmission spectra derived from the irregular wave tests agree with the regular wave data but are overpredicted by linear models due to nonlinear dissipative processes, regardless of floe configuration. This article is part of the theme issue ‘Theory, modelling and observations of marginal ice zone dynamics: multidisciplinary perspectives and outlooks’. The Royal Society 2022-10-31 2022-09-12 /pmc/articles/PMC9653260/ /pubmed/36088929 http://dx.doi.org/10.1098/rsta.2021.0255 Text en © 2022 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited.
spellingShingle Articles
Toffoli, A.
Pitt, J. P. A.
Alberello, A.
Bennetts, L. G.
Modelling attenuation of irregular wave fields by artificial ice floes in the laboratory
title Modelling attenuation of irregular wave fields by artificial ice floes in the laboratory
title_full Modelling attenuation of irregular wave fields by artificial ice floes in the laboratory
title_fullStr Modelling attenuation of irregular wave fields by artificial ice floes in the laboratory
title_full_unstemmed Modelling attenuation of irregular wave fields by artificial ice floes in the laboratory
title_short Modelling attenuation of irregular wave fields by artificial ice floes in the laboratory
title_sort modelling attenuation of irregular wave fields by artificial ice floes in the laboratory
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9653260/
https://www.ncbi.nlm.nih.gov/pubmed/36088929
http://dx.doi.org/10.1098/rsta.2021.0255
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