The dynamics of unstable waves in sea ice
Abstract Wave and sea ice properties in the Arctic and Southern Oceans are linked by feedback mechanisms, therefore the understanding of wave propagation in these regions is essential to model this key component of the Earth climate system. The most striking effect of sea ice is the attenuation of w...
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ftdoajarticles:oai:doaj.org/article:6a4d871d8a89444598e051e890d8727b 2023-10-01T03:54:01+02:00 The dynamics of unstable waves in sea ice Alberto Alberello Emilian Părău Amin Chabchoub 2023-08-01T00:00:00Z https://doi.org/10.1038/s41598-023-40696-3 https://doaj.org/article/6a4d871d8a89444598e051e890d8727b EN eng Nature Portfolio https://doi.org/10.1038/s41598-023-40696-3 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-023-40696-3 2045-2322 https://doaj.org/article/6a4d871d8a89444598e051e890d8727b Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023) Medicine R Science Q article 2023 ftdoajarticles https://doi.org/10.1038/s41598-023-40696-3 2023-09-03T00:54:50Z Abstract Wave and sea ice properties in the Arctic and Southern Oceans are linked by feedback mechanisms, therefore the understanding of wave propagation in these regions is essential to model this key component of the Earth climate system. The most striking effect of sea ice is the attenuation of waves at a rate proportional to their frequency. The nonlinear Schrödinger equation (NLS), a fundamental model for ocean waves, describes the full growth-decay cycles of unstable modes, also known as modulational instability (MI). Here, a dissipative NLS (d-NLS) with characteristic sea ice attenuation is used to model the evolution of unstable waves. The MI in sea ice is preserved, however, in its phase-shifted form. The frequency-dependent dissipation breaks the symmetry between the dominant left and right sideband. We anticipate that this work may motivate analogous studies and experiments in wave systems subject to frequency-dependent energy attenuation. Article in Journal/Newspaper Arctic Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Scientific Reports 13 1 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Medicine R Science Q |
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Medicine R Science Q Alberto Alberello Emilian Părău Amin Chabchoub The dynamics of unstable waves in sea ice |
topic_facet |
Medicine R Science Q |
description |
Abstract Wave and sea ice properties in the Arctic and Southern Oceans are linked by feedback mechanisms, therefore the understanding of wave propagation in these regions is essential to model this key component of the Earth climate system. The most striking effect of sea ice is the attenuation of waves at a rate proportional to their frequency. The nonlinear Schrödinger equation (NLS), a fundamental model for ocean waves, describes the full growth-decay cycles of unstable modes, also known as modulational instability (MI). Here, a dissipative NLS (d-NLS) with characteristic sea ice attenuation is used to model the evolution of unstable waves. The MI in sea ice is preserved, however, in its phase-shifted form. The frequency-dependent dissipation breaks the symmetry between the dominant left and right sideband. We anticipate that this work may motivate analogous studies and experiments in wave systems subject to frequency-dependent energy attenuation. |
format |
Article in Journal/Newspaper |
author |
Alberto Alberello Emilian Părău Amin Chabchoub |
author_facet |
Alberto Alberello Emilian Părău Amin Chabchoub |
author_sort |
Alberto Alberello |
title |
The dynamics of unstable waves in sea ice |
title_short |
The dynamics of unstable waves in sea ice |
title_full |
The dynamics of unstable waves in sea ice |
title_fullStr |
The dynamics of unstable waves in sea ice |
title_full_unstemmed |
The dynamics of unstable waves in sea ice |
title_sort |
dynamics of unstable waves in sea ice |
publisher |
Nature Portfolio |
publishDate |
2023 |
url |
https://doi.org/10.1038/s41598-023-40696-3 https://doaj.org/article/6a4d871d8a89444598e051e890d8727b |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_source |
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023) |
op_relation |
https://doi.org/10.1038/s41598-023-40696-3 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-023-40696-3 2045-2322 https://doaj.org/article/6a4d871d8a89444598e051e890d8727b |
op_doi |
https://doi.org/10.1038/s41598-023-40696-3 |
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Scientific Reports |
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13 |
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1 |
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1778521217091764224 |