In situ measurements and analysis of ocean waves in the Antarctic marginal ice zone
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 80 km of the ice-covered ocean. Beyond this region, significa...
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2014
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ftunivnewcastnsw:uon:16958 2023-05-15T13:54:24+02:00 In situ measurements and analysis of ocean waves in the Antarctic marginal ice zone Meylan, Michael H. Bennetts, Luke G. Kohout, Alison L. The University of Newcastle. Faculty of Science & Information Technology, School of Mathematical and Physical Sciences 2014 http://hdl.handle.net/1959.13/1061469 eng eng Wiley-Blackwell Publishing Geophysical Research Letters Vol. 41, Issue 14, p. 5046-5051 10.1002/2014GL060809 sea ice ocean waves attenuation Antarctic journal article 2014 ftunivnewcastnsw 2018-07-27T00:19:21Z 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 80 km 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. Article in Journal/Newspaper Antarc* Antarctic Sea ice NOVA: The University of Newcastle Research Online (Australia) Antarctic The Antarctic |
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Open Polar |
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NOVA: The University of Newcastle Research Online (Australia) |
op_collection_id |
ftunivnewcastnsw |
language |
English |
topic |
sea ice ocean waves attenuation Antarctic |
spellingShingle |
sea ice ocean waves attenuation Antarctic Meylan, Michael H. Bennetts, Luke G. Kohout, Alison L. In situ measurements and analysis of ocean waves in the Antarctic marginal ice zone |
topic_facet |
sea ice ocean waves attenuation Antarctic |
description |
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 80 km 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. |
author2 |
The University of Newcastle. Faculty of Science & Information Technology, School of Mathematical and Physical Sciences |
format |
Article in Journal/Newspaper |
author |
Meylan, Michael H. Bennetts, Luke G. Kohout, Alison L. |
author_facet |
Meylan, Michael H. Bennetts, Luke G. Kohout, Alison L. |
author_sort |
Meylan, Michael H. |
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 |
Wiley-Blackwell Publishing |
publishDate |
2014 |
url |
http://hdl.handle.net/1959.13/1061469 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_relation |
Geophysical Research Letters Vol. 41, Issue 14, p. 5046-5051 10.1002/2014GL060809 |
_version_ |
1766260149073215488 |