Dispersion relations, power laws, and energy loss for waves in the marginal ice zone
Analysis of field measurements of ocean surface wave activity in the marginal ice zone, from campaigns in the Arctic and Antarctic and over a range of different ice conditions, shows the wave attenuation rate with respect to distance has a power law dependence on the frequency with order between two...
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ftunivnewcastnsw:uon:33564 2023-05-15T13:45:38+02:00 Dispersion relations, power laws, and energy loss for waves in the marginal ice zone Meylan, M. H. Bennetts, L. G. Mosig, J. E. M. Rogers, W. E. Doble, M. J. Peter, M. A. The University of Newcastle. Faculty of Science, School of Mathematical and Physical Sciences 2018 http://hdl.handle.net/1959.13/1393602 eng eng Wiley-Blackwell Journal of Geophysical Research: Oceans Vol. 123, Issue 5, p. 3322-3335 10.1002/2018JC013776 marginal ice zone wave attenuation energy loss power laws journal article 2018 ftunivnewcastnsw 2018-11-26T23:23:50Z Analysis of field measurements of ocean surface wave activity in the marginal ice zone, from campaigns in the Arctic and Antarctic and over a range of different ice conditions, shows the wave attenuation rate with respect to distance has a power law dependence on the frequency with order between two and four. With this backdrop, the attenuation‐frequency power law dependencies given by three dispersion relation models are obtained under the assumptions of weak attenuation, negligible deviation of the wave number from the open water wave number, and thin ice. It is found that two of the models (both implemented in WAVEWATCH III®), predict attenuation rates that are far more sensitive to frequency than indicated by the measurements. An alternative method is proposed to derive dispersion relation models, based on energy loss mechanisms. The method is used to generate example models that predict power law dependencies that are comparable with the field measurements. Article in Journal/Newspaper Antarc* Antarctic Arctic NOVA: The University of Newcastle Research Online (Australia) Antarctic Arctic |
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Open Polar |
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NOVA: The University of Newcastle Research Online (Australia) |
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ftunivnewcastnsw |
language |
English |
topic |
marginal ice zone wave attenuation energy loss power laws |
spellingShingle |
marginal ice zone wave attenuation energy loss power laws Meylan, M. H. Bennetts, L. G. Mosig, J. E. M. Rogers, W. E. Doble, M. J. Peter, M. A. Dispersion relations, power laws, and energy loss for waves in the marginal ice zone |
topic_facet |
marginal ice zone wave attenuation energy loss power laws |
description |
Analysis of field measurements of ocean surface wave activity in the marginal ice zone, from campaigns in the Arctic and Antarctic and over a range of different ice conditions, shows the wave attenuation rate with respect to distance has a power law dependence on the frequency with order between two and four. With this backdrop, the attenuation‐frequency power law dependencies given by three dispersion relation models are obtained under the assumptions of weak attenuation, negligible deviation of the wave number from the open water wave number, and thin ice. It is found that two of the models (both implemented in WAVEWATCH III®), predict attenuation rates that are far more sensitive to frequency than indicated by the measurements. An alternative method is proposed to derive dispersion relation models, based on energy loss mechanisms. The method is used to generate example models that predict power law dependencies that are comparable with the field measurements. |
author2 |
The University of Newcastle. Faculty of Science, School of Mathematical and Physical Sciences |
format |
Article in Journal/Newspaper |
author |
Meylan, M. H. Bennetts, L. G. Mosig, J. E. M. Rogers, W. E. Doble, M. J. Peter, M. A. |
author_facet |
Meylan, M. H. Bennetts, L. G. Mosig, J. E. M. Rogers, W. E. Doble, M. J. Peter, M. A. |
author_sort |
Meylan, M. H. |
title |
Dispersion relations, power laws, and energy loss for waves in the marginal ice zone |
title_short |
Dispersion relations, power laws, and energy loss for waves in the marginal ice zone |
title_full |
Dispersion relations, power laws, and energy loss for waves in the marginal ice zone |
title_fullStr |
Dispersion relations, power laws, and energy loss for waves in the marginal ice zone |
title_full_unstemmed |
Dispersion relations, power laws, and energy loss for waves in the marginal ice zone |
title_sort |
dispersion relations, power laws, and energy loss for waves in the marginal ice zone |
publisher |
Wiley-Blackwell |
publishDate |
2018 |
url |
http://hdl.handle.net/1959.13/1393602 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_relation |
Journal of Geophysical Research: Oceans Vol. 123, Issue 5, p. 3322-3335 10.1002/2018JC013776 |
_version_ |
1766228724262371328 |