Sea ice floes dissipate the energy of steep ocean waves
A laboratory experimental model of an incident ocean wave interacting with an ice floe is used to validate the canonical, solitary floe version of contemporary theoretical models of wave attenuation in the ice-covered ocean. Amplitudes of waves transmitted by the floe are presented as functions of i...
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Online Access: | http://hdl.handle.net/1959.13/1330008 |
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ftunivnewcastnsw:uon:26290 2023-05-15T18:18:20+02:00 Sea ice floes dissipate the energy of steep ocean waves Toffoli, A. Bennetts, L. G. Meylan, M. H. Cavaliere, C. Alberello, A. Elsnab, J. Monty, J. P. The University of Newcastle. Faculty of Science & Information Technology, School of Mathematical and Physical Sciences 2015 http://hdl.handle.net/1959.13/1330008 eng eng Wiley-Blackwell ARC.DE130101571 & ARC.FT120100409 Geophysical Research Letters Vol. 42, Issue 20, p. 8547-8554 10.1002/2015GL065937 wave attenuation wave energy ice floes dissipation journal article 2015 ftunivnewcastnsw 2018-07-27T00:14:18Z A laboratory experimental model of an incident ocean wave interacting with an ice floe is used to validate the canonical, solitary floe version of contemporary theoretical models of wave attenuation in the ice-covered ocean. Amplitudes of waves transmitted by the floe are presented as functions of incident wave steepness for different incident wavelengths. The model is shown to predict the transmitted amplitudes accurately for low incident steepness but to overpredict the amplitudes by an increasing amount, as the incident wave becomes steeper. The proportion of incident wave energy dissipated by the floe in the experiments is shown to correlate with the agreement between the theoretical model and the experimental data, thus implying that wave-floe interactions increasingly dissipate wave energy as the incident wave becomes steeper. Key Points Wave scattering theory alone is not sufficient to predict attenuation of waves Wave energy is not conserved during wave-ice interactions Turbulent bores at the floes front and rear edges induce dissipation Article in Journal/Newspaper Sea ice NOVA: The University of Newcastle Research Online (Australia) |
institution |
Open Polar |
collection |
NOVA: The University of Newcastle Research Online (Australia) |
op_collection_id |
ftunivnewcastnsw |
language |
English |
topic |
wave attenuation wave energy ice floes dissipation |
spellingShingle |
wave attenuation wave energy ice floes dissipation Toffoli, A. Bennetts, L. G. Meylan, M. H. Cavaliere, C. Alberello, A. Elsnab, J. Monty, J. P. Sea ice floes dissipate the energy of steep ocean waves |
topic_facet |
wave attenuation wave energy ice floes dissipation |
description |
A laboratory experimental model of an incident ocean wave interacting with an ice floe is used to validate the canonical, solitary floe version of contemporary theoretical models of wave attenuation in the ice-covered ocean. Amplitudes of waves transmitted by the floe are presented as functions of incident wave steepness for different incident wavelengths. The model is shown to predict the transmitted amplitudes accurately for low incident steepness but to overpredict the amplitudes by an increasing amount, as the incident wave becomes steeper. The proportion of incident wave energy dissipated by the floe in the experiments is shown to correlate with the agreement between the theoretical model and the experimental data, thus implying that wave-floe interactions increasingly dissipate wave energy as the incident wave becomes steeper. Key Points Wave scattering theory alone is not sufficient to predict attenuation of waves Wave energy is not conserved during wave-ice interactions Turbulent bores at the floes front and rear edges induce dissipation |
author2 |
The University of Newcastle. Faculty of Science & Information Technology, School of Mathematical and Physical Sciences |
format |
Article in Journal/Newspaper |
author |
Toffoli, A. Bennetts, L. G. Meylan, M. H. Cavaliere, C. Alberello, A. Elsnab, J. Monty, J. P. |
author_facet |
Toffoli, A. Bennetts, L. G. Meylan, M. H. Cavaliere, C. Alberello, A. Elsnab, J. Monty, J. P. |
author_sort |
Toffoli, A. |
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 |
Wiley-Blackwell |
publishDate |
2015 |
url |
http://hdl.handle.net/1959.13/1330008 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
ARC.DE130101571 & ARC.FT120100409 Geophysical Research Letters Vol. 42, Issue 20, p. 8547-8554 10.1002/2015GL065937 |
_version_ |
1766194878847385600 |