A model study of convergent dynamics in the marginal ice zone
With the increasing resolution of operational forecasting models, the marginal ice zone (MIZ), the area where waves and sea ice interact, can now be better represented. However, the proper mechanics of wave propagation and attenuation in ice, and especially their influence on sea ice dynamics, still...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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Online Access: | http://dx.doi.org/10.1098/rsta.2021.0261 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2021.0261 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2021.0261 |
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crroyalsociety:10.1098/rsta.2021.0261 2024-06-02T08:14:17+00:00 A model study of convergent dynamics in the marginal ice zone Auclair, Jean-Pierre Dumont, Dany Lemieux, Jean-François Ritchie, Hal Marine Environmental Observation Prediction and Response Network Environment and Climate Change Canada Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada 2022 http://dx.doi.org/10.1098/rsta.2021.0261 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2021.0261 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2021.0261 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences volume 380, issue 2235 ISSN 1364-503X 1471-2962 journal-article 2022 crroyalsociety https://doi.org/10.1098/rsta.2021.0261 2024-05-07T14:16:26Z With the increasing resolution of operational forecasting models, the marginal ice zone (MIZ), the area where waves and sea ice interact, can now be better represented. However, the proper mechanics of wave propagation and attenuation in ice, and especially their influence on sea ice dynamics, still remain poorly understood and constrained in models. Observations have shown exponential wave energy decrease with distance in sea ice, particularly strong at higher frequencies. Some of this energy is transferred to the ice, breaking it into smaller floes and weakening it, as well as exerting a stress on the ice similar to winds and currents. In this article, we present a one-dimensional, fully integrated wave and ice model that has been developed to test different parameterizations of wave–ice interactions. The response of the ice cover to the wind and wave radiative stresses is investigated for a variety of wind, wave and ice conditions at different scales. Results of sensitivity analyses reveal the complex interplay between wave attenuation and rheological parameters and suggest that the compressive strength of the MIZ may be better represented by a Mohr-Coulomb parameterization with a nonlinear dependence on thickness. This article is part of the theme issue ‘Theory, modelling and observations of marginal ice zone dynamics: multidisciplinary perspectives and outlooks’. Article in Journal/Newspaper Sea ice The Royal Society Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 380 2235 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
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English |
description |
With the increasing resolution of operational forecasting models, the marginal ice zone (MIZ), the area where waves and sea ice interact, can now be better represented. However, the proper mechanics of wave propagation and attenuation in ice, and especially their influence on sea ice dynamics, still remain poorly understood and constrained in models. Observations have shown exponential wave energy decrease with distance in sea ice, particularly strong at higher frequencies. Some of this energy is transferred to the ice, breaking it into smaller floes and weakening it, as well as exerting a stress on the ice similar to winds and currents. In this article, we present a one-dimensional, fully integrated wave and ice model that has been developed to test different parameterizations of wave–ice interactions. The response of the ice cover to the wind and wave radiative stresses is investigated for a variety of wind, wave and ice conditions at different scales. Results of sensitivity analyses reveal the complex interplay between wave attenuation and rheological parameters and suggest that the compressive strength of the MIZ may be better represented by a Mohr-Coulomb parameterization with a nonlinear dependence on thickness. This article is part of the theme issue ‘Theory, modelling and observations of marginal ice zone dynamics: multidisciplinary perspectives and outlooks’. |
author2 |
Marine Environmental Observation Prediction and Response Network Environment and Climate Change Canada Canadian Network for Research and Innovation in Machining Technology, Natural Sciences and Engineering Research Council of Canada |
format |
Article in Journal/Newspaper |
author |
Auclair, Jean-Pierre Dumont, Dany Lemieux, Jean-François Ritchie, Hal |
spellingShingle |
Auclair, Jean-Pierre Dumont, Dany Lemieux, Jean-François Ritchie, Hal A model study of convergent dynamics in the marginal ice zone |
author_facet |
Auclair, Jean-Pierre Dumont, Dany Lemieux, Jean-François Ritchie, Hal |
author_sort |
Auclair, Jean-Pierre |
title |
A model study of convergent dynamics in the marginal ice zone |
title_short |
A model study of convergent dynamics in the marginal ice zone |
title_full |
A model study of convergent dynamics in the marginal ice zone |
title_fullStr |
A model study of convergent dynamics in the marginal ice zone |
title_full_unstemmed |
A model study of convergent dynamics in the marginal ice zone |
title_sort |
model study of convergent dynamics in the marginal ice zone |
publisher |
The Royal Society |
publishDate |
2022 |
url |
http://dx.doi.org/10.1098/rsta.2021.0261 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2021.0261 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2021.0261 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences volume 380, issue 2235 ISSN 1364-503X 1471-2962 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsta.2021.0261 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
380 |
container_issue |
2235 |
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1800738076978315264 |