Sea ice floes dissipate the energy of steep ocean waves
Wave attenuation by ice floes is an important parameter for modelling the Arctic Oceans. At present, attenuation coefficients are extracted from linear models as a function of the incident wave period and floe thickness. Recent explorations in the Antarctic Mixed Ice Zone (MIZ) revealed a further de...
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ftdatacite:10.48550/arxiv.1502.06040 2023-05-15T13:35:00+02:00 Sea ice floes dissipate the energy of steep ocean waves Toffoli, Alessandro Bennetts, Luke G. Meylan, Michael H. Cavaliere, Claudio Alberello, Alberto Elsnab, John Monty, Jason P. 2015 https://dx.doi.org/10.48550/arxiv.1502.06040 https://arxiv.org/abs/1502.06040 unknown arXiv https://dx.doi.org/10.1002/2015gl065937 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Fluid Dynamics physics.flu-dyn Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences article-journal Article ScholarlyArticle Text 2015 ftdatacite https://doi.org/10.48550/arxiv.1502.06040 https://doi.org/10.1002/2015gl065937 2022-04-01T12:32:11Z Wave attenuation by ice floes is an important parameter for modelling the Arctic Oceans. At present, attenuation coefficients are extracted from linear models as a function of the incident wave period and floe thickness. Recent explorations in the Antarctic Mixed Ice Zone (MIZ) revealed a further dependence on wave amplitude, suggesting that nonlinear contributions are non-negligible. An experimental model for wave attenuation by a single ice floe in a wave flume is here presented. Observations are compared with linear predictions based on wave scattering. Results indicate that linear models perform well under the effect of gently sloping waves. For more energetic wave fields, however, transmitted wave height is normally over predicted. Deviations from linearity appear to be related to an enhancement of wave dissipation induced by unaccounted wave-ice interaction processes, including the floe over wash. Text Antarc* Antarctic Arctic Sea ice DataCite Metadata Store (German National Library of Science and Technology) Arctic Antarctic The Antarctic |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
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language |
unknown |
topic |
Fluid Dynamics physics.flu-dyn Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences |
spellingShingle |
Fluid Dynamics physics.flu-dyn Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences Toffoli, Alessandro Bennetts, Luke G. Meylan, Michael H. Cavaliere, Claudio Alberello, Alberto Elsnab, John Monty, Jason P. Sea ice floes dissipate the energy of steep ocean waves |
topic_facet |
Fluid Dynamics physics.flu-dyn Atmospheric and Oceanic Physics physics.ao-ph FOS Physical sciences |
description |
Wave attenuation by ice floes is an important parameter for modelling the Arctic Oceans. At present, attenuation coefficients are extracted from linear models as a function of the incident wave period and floe thickness. Recent explorations in the Antarctic Mixed Ice Zone (MIZ) revealed a further dependence on wave amplitude, suggesting that nonlinear contributions are non-negligible. An experimental model for wave attenuation by a single ice floe in a wave flume is here presented. Observations are compared with linear predictions based on wave scattering. Results indicate that linear models perform well under the effect of gently sloping waves. For more energetic wave fields, however, transmitted wave height is normally over predicted. Deviations from linearity appear to be related to an enhancement of wave dissipation induced by unaccounted wave-ice interaction processes, including the floe over wash. |
format |
Text |
author |
Toffoli, Alessandro Bennetts, Luke G. Meylan, Michael H. Cavaliere, Claudio Alberello, Alberto Elsnab, John Monty, Jason P. |
author_facet |
Toffoli, Alessandro Bennetts, Luke G. Meylan, Michael H. Cavaliere, Claudio Alberello, Alberto Elsnab, John Monty, Jason P. |
author_sort |
Toffoli, Alessandro |
title |
Sea ice floes dissipate the energy of steep ocean waves |
title_short |
Sea ice floes dissipate the energy of steep ocean waves |
title_full |
Sea ice floes dissipate the energy of steep ocean waves |
title_fullStr |
Sea ice floes dissipate the energy of steep ocean waves |
title_full_unstemmed |
Sea ice floes dissipate the energy of steep ocean waves |
title_sort |
sea ice floes dissipate the energy of steep ocean waves |
publisher |
arXiv |
publishDate |
2015 |
url |
https://dx.doi.org/10.48550/arxiv.1502.06040 https://arxiv.org/abs/1502.06040 |
geographic |
Arctic Antarctic The Antarctic |
geographic_facet |
Arctic Antarctic The Antarctic |
genre |
Antarc* Antarctic Arctic Sea ice |
genre_facet |
Antarc* Antarctic Arctic Sea ice |
op_relation |
https://dx.doi.org/10.1002/2015gl065937 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1502.06040 https://doi.org/10.1002/2015gl065937 |
_version_ |
1766060108354158592 |