Estimates of spectral wave attenuation in Antarctic sea ice, using model/data inversion
A model-data inversion is applied to an extensive observational dataset collected in the Southern Ocean north of the Ross Sea during late autumn to early winter, producing estimates of the frequency-dependent rate of dissipation by sea ice. The modeling platform is WAVEWATCH III® which accounts for...
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ftunivnewcastnsw:uon:37966 2023-05-15T13:45:38+02:00 Estimates of spectral wave attenuation in Antarctic sea ice, using model/data inversion Rogers, W. Erick Meylan, Michael H. Kohout, Alison L. The University of Newcastle. Faculty of Science, School of Mathematical and Physical Sciences 2021 http://hdl.handle.net/1959.13/1423701 eng eng Elsevier ARC.DP200102828 Cold Regions Science and Technology Vol. 182, Issue February 2021, no. 103198 10.1016/j.coldregions.2020.103198 http://hdl.handle.net/1959.13/1423701 uon:37966 ISSN:0165-232X ocean waves sea ice spectral wave model wave-ice interaction WAVEWATCH III dissipation by sea ice journal article 2021 ftunivnewcastnsw 2021-07-19T22:24:56Z A model-data inversion is applied to an extensive observational dataset collected in the Southern Ocean north of the Ross Sea during late autumn to early winter, producing estimates of the frequency-dependent rate of dissipation by sea ice. The modeling platform is WAVEWATCH III® which accounts for non-stationarity, advection, wave generation, and other relevant processes. The resulting 9477 dissipation profiles are co-located with other variables such as ice thickness to quantify correlations which might be exploited in later studies to improve predictions. An average of dissipation profiles from cases of thinner ice near the ice edge is fitted to a simple binomial. The binomial shows remarkable qualitative similarity to prior observation-based estimates of dissipation, and the power dependence is consistent with at least three theoretical models, one of which assumes that dissipation is dominated by turbulence generated by shear at the ice-water interface. Estimated dissipation is lower closer to the ice edge, where ice is thinner, and waveheight is larger. The quantified correlation with ice thickness may be exploited to develop new parametric predictions of dissipation. Article in Journal/Newspaper Antarc* Antarctic Ross Sea Sea ice Southern Ocean NOVA: The University of Newcastle Research Online (Australia) Antarctic Ross Sea Southern Ocean |
institution |
Open Polar |
collection |
NOVA: The University of Newcastle Research Online (Australia) |
op_collection_id |
ftunivnewcastnsw |
language |
English |
topic |
ocean waves sea ice spectral wave model wave-ice interaction WAVEWATCH III dissipation by sea ice |
spellingShingle |
ocean waves sea ice spectral wave model wave-ice interaction WAVEWATCH III dissipation by sea ice Rogers, W. Erick Meylan, Michael H. Kohout, Alison L. Estimates of spectral wave attenuation in Antarctic sea ice, using model/data inversion |
topic_facet |
ocean waves sea ice spectral wave model wave-ice interaction WAVEWATCH III dissipation by sea ice |
description |
A model-data inversion is applied to an extensive observational dataset collected in the Southern Ocean north of the Ross Sea during late autumn to early winter, producing estimates of the frequency-dependent rate of dissipation by sea ice. The modeling platform is WAVEWATCH III® which accounts for non-stationarity, advection, wave generation, and other relevant processes. The resulting 9477 dissipation profiles are co-located with other variables such as ice thickness to quantify correlations which might be exploited in later studies to improve predictions. An average of dissipation profiles from cases of thinner ice near the ice edge is fitted to a simple binomial. The binomial shows remarkable qualitative similarity to prior observation-based estimates of dissipation, and the power dependence is consistent with at least three theoretical models, one of which assumes that dissipation is dominated by turbulence generated by shear at the ice-water interface. Estimated dissipation is lower closer to the ice edge, where ice is thinner, and waveheight is larger. The quantified correlation with ice thickness may be exploited to develop new parametric predictions of dissipation. |
author2 |
The University of Newcastle. Faculty of Science, School of Mathematical and Physical Sciences |
format |
Article in Journal/Newspaper |
author |
Rogers, W. Erick Meylan, Michael H. Kohout, Alison L. |
author_facet |
Rogers, W. Erick Meylan, Michael H. Kohout, Alison L. |
author_sort |
Rogers, W. Erick |
title |
Estimates of spectral wave attenuation in Antarctic sea ice, using model/data inversion |
title_short |
Estimates of spectral wave attenuation in Antarctic sea ice, using model/data inversion |
title_full |
Estimates of spectral wave attenuation in Antarctic sea ice, using model/data inversion |
title_fullStr |
Estimates of spectral wave attenuation in Antarctic sea ice, using model/data inversion |
title_full_unstemmed |
Estimates of spectral wave attenuation in Antarctic sea ice, using model/data inversion |
title_sort |
estimates of spectral wave attenuation in antarctic sea ice, using model/data inversion |
publisher |
Elsevier |
publishDate |
2021 |
url |
http://hdl.handle.net/1959.13/1423701 |
geographic |
Antarctic Ross Sea Southern Ocean |
geographic_facet |
Antarctic Ross Sea Southern Ocean |
genre |
Antarc* Antarctic Ross Sea Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Ross Sea Sea ice Southern Ocean |
op_relation |
ARC.DP200102828 Cold Regions Science and Technology Vol. 182, Issue February 2021, no. 103198 10.1016/j.coldregions.2020.103198 http://hdl.handle.net/1959.13/1423701 uon:37966 ISSN:0165-232X |
_version_ |
1766228737518469120 |