In situ measurements and analysis of ocean waves in the Antarctic marginal ice zone
Article first published online: 30 JUL 2014 In situ measurements of ocean surface wave spectra evolution in the Antarctic marginal ice zone are described. Analysis of the measurements shows significant wave heights and peak periods do not vary appreciably in approximately the first 80km of the ice-c...
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Online Access: | http://hdl.handle.net/2440/92498 https://doi.org/10.1002/2014GL060809 |
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ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/92498 2023-12-17T10:20:49+01:00 In situ measurements and analysis of ocean waves in the Antarctic marginal ice zone Meylan, M. Bennetts, L. Kohout, A. 2014 http://hdl.handle.net/2440/92498 https://doi.org/10.1002/2014GL060809 en eng American Geophysical Union http://purl.org/au-research/grants/arc/DE130101571 Geophysical Research Letters, 2014; 41(14):5046-5051 0094-8276 1944-8007 http://hdl.handle.net/2440/92498 doi:10.1002/2014GL060809 Bennetts, L. [0000-0001-9386-7882] ©2014. American Geophysical Union. All Rights Reserved. http://dx.doi.org/10.1002/2014gl060809 Journal article 2014 ftunivadelaidedl https://doi.org/10.1002/2014GL06080910.1002/2014gl060809 2023-11-20T23:36:01Z Article first published online: 30 JUL 2014 In situ measurements of ocean surface wave spectra evolution in the Antarctic marginal ice zone are described. Analysis of the measurements shows significant wave heights and peak periods do not vary appreciably in approximately the first 80km of the ice-covered ocean. Beyond this region, significant wave heights attenuate and peak periods increase. It is shown that attenuation rates are insensitive to amplitudes for long-period waves but increase with increasing amplitude above some critical amplitude for short-period waves. Attenuation rates of the spectral components of the wavefield are calculated. It is shown that attenuation rates decrease with increasing wave period. Further, for long-period waves the decrease is shown to be proportional to the inverse of the period squared. This relationship can be used to efficiently implement wave attenuation through the marginal ice zone in ocean-scale wave models. Michael H. Meylan, Luke G. Bennetts, and Alison L. Kohout Article in Journal/Newspaper Antarc* Antarctic The University of Adelaide: Digital Library Antarctic The Antarctic Luke ENVELOPE(-94.855,-94.855,56.296,56.296) Geophysical Research Letters 41 14 5046 5051 |
institution |
Open Polar |
collection |
The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
description |
Article first published online: 30 JUL 2014 In situ measurements of ocean surface wave spectra evolution in the Antarctic marginal ice zone are described. Analysis of the measurements shows significant wave heights and peak periods do not vary appreciably in approximately the first 80km of the ice-covered ocean. Beyond this region, significant wave heights attenuate and peak periods increase. It is shown that attenuation rates are insensitive to amplitudes for long-period waves but increase with increasing amplitude above some critical amplitude for short-period waves. Attenuation rates of the spectral components of the wavefield are calculated. It is shown that attenuation rates decrease with increasing wave period. Further, for long-period waves the decrease is shown to be proportional to the inverse of the period squared. This relationship can be used to efficiently implement wave attenuation through the marginal ice zone in ocean-scale wave models. Michael H. Meylan, Luke G. Bennetts, and Alison L. Kohout |
format |
Article in Journal/Newspaper |
author |
Meylan, M. Bennetts, L. Kohout, A. |
spellingShingle |
Meylan, M. Bennetts, L. Kohout, A. In situ measurements and analysis of ocean waves in the Antarctic marginal ice zone |
author_facet |
Meylan, M. Bennetts, L. Kohout, A. |
author_sort |
Meylan, M. |
title |
In situ measurements and analysis of ocean waves in the Antarctic marginal ice zone |
title_short |
In situ measurements and analysis of ocean waves in the Antarctic marginal ice zone |
title_full |
In situ measurements and analysis of ocean waves in the Antarctic marginal ice zone |
title_fullStr |
In situ measurements and analysis of ocean waves in the Antarctic marginal ice zone |
title_full_unstemmed |
In situ measurements and analysis of ocean waves in the Antarctic marginal ice zone |
title_sort |
in situ measurements and analysis of ocean waves in the antarctic marginal ice zone |
publisher |
American Geophysical Union |
publishDate |
2014 |
url |
http://hdl.handle.net/2440/92498 https://doi.org/10.1002/2014GL060809 |
long_lat |
ENVELOPE(-94.855,-94.855,56.296,56.296) |
geographic |
Antarctic The Antarctic Luke |
geographic_facet |
Antarctic The Antarctic Luke |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
http://dx.doi.org/10.1002/2014gl060809 |
op_relation |
http://purl.org/au-research/grants/arc/DE130101571 Geophysical Research Letters, 2014; 41(14):5046-5051 0094-8276 1944-8007 http://hdl.handle.net/2440/92498 doi:10.1002/2014GL060809 Bennetts, L. [0000-0001-9386-7882] |
op_rights |
©2014. American Geophysical Union. All Rights Reserved. |
op_doi |
https://doi.org/10.1002/2014GL06080910.1002/2014gl060809 |
container_title |
Geophysical Research Letters |
container_volume |
41 |
container_issue |
14 |
container_start_page |
5046 |
op_container_end_page |
5051 |
_version_ |
1785526513264754688 |