Medium-range numerical prediction of Antarctic sea ice ...
This research investigates the use of a multiple-thickness sea-ice model for opera- tional Antarctic sea-ice forecasts. Deterministic predictions are generated with a finite difference sea-ice model for the Southern Ocean. The forecast model includes a new method for ridging sea ice on semi-diurnal...
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University Of Tasmania
2023
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ftdatacite:10.25959/23244959.v1 2023-06-11T04:07:13+02:00 Medium-range numerical prediction of Antarctic sea ice ... Roberts, Andrew Frank 2023 https://dx.doi.org/10.25959/23244959.v1 https://figshare.utas.edu.au/articles/thesis/Medium-range_numerical_prediction_of_Antarctic_sea_ice/23244959/1 unknown University Of Tasmania https://dx.doi.org/10.25959/23244959 In Copyright http://rightsstatements.org/vocab/InC/1.0/ article-journal Text ScholarlyArticle Thesis 2023 ftdatacite https://doi.org/10.25959/23244959.v110.25959/23244959 2023-06-01T12:13:31Z This research investigates the use of a multiple-thickness sea-ice model for opera- tional Antarctic sea-ice forecasts. Deterministic predictions are generated with a finite difference sea-ice model for the Southern Ocean. The forecast model includes a new method for ridging sea ice on semi-diurnal timescales and includes a modified Coulombic rheology. This approach differs from formalistic techniques used in existing thickness distribution models, and is introduced to simulate oriented fractures with multiple thickness- categories. Behaviour of the dynamic component of the model is assessed on a test grid to illustrate its properties and numerical limitations. The dynamic component is then combined with a constant salinity, enthalpy-conserving thermodynamic model on a 50 km resolution polar stereographic grid using 11 thickness categories to simulate circum-Antarctic sea ice. Sea-ice assimilations are generated for observation intensive years (1992 and 1996) to compare model output with drafts from Upward ... Thesis Antarc* Antarctic Sea ice Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Antarctic Southern Ocean |
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DataCite Metadata Store (German National Library of Science and Technology) |
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description |
This research investigates the use of a multiple-thickness sea-ice model for opera- tional Antarctic sea-ice forecasts. Deterministic predictions are generated with a finite difference sea-ice model for the Southern Ocean. The forecast model includes a new method for ridging sea ice on semi-diurnal timescales and includes a modified Coulombic rheology. This approach differs from formalistic techniques used in existing thickness distribution models, and is introduced to simulate oriented fractures with multiple thickness- categories. Behaviour of the dynamic component of the model is assessed on a test grid to illustrate its properties and numerical limitations. The dynamic component is then combined with a constant salinity, enthalpy-conserving thermodynamic model on a 50 km resolution polar stereographic grid using 11 thickness categories to simulate circum-Antarctic sea ice. Sea-ice assimilations are generated for observation intensive years (1992 and 1996) to compare model output with drafts from Upward ... |
format |
Thesis |
author |
Roberts, Andrew Frank |
spellingShingle |
Roberts, Andrew Frank Medium-range numerical prediction of Antarctic sea ice ... |
author_facet |
Roberts, Andrew Frank |
author_sort |
Roberts, Andrew Frank |
title |
Medium-range numerical prediction of Antarctic sea ice ... |
title_short |
Medium-range numerical prediction of Antarctic sea ice ... |
title_full |
Medium-range numerical prediction of Antarctic sea ice ... |
title_fullStr |
Medium-range numerical prediction of Antarctic sea ice ... |
title_full_unstemmed |
Medium-range numerical prediction of Antarctic sea ice ... |
title_sort |
medium-range numerical prediction of antarctic sea ice ... |
publisher |
University Of Tasmania |
publishDate |
2023 |
url |
https://dx.doi.org/10.25959/23244959.v1 https://figshare.utas.edu.au/articles/thesis/Medium-range_numerical_prediction_of_Antarctic_sea_ice/23244959/1 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_relation |
https://dx.doi.org/10.25959/23244959 |
op_rights |
In Copyright http://rightsstatements.org/vocab/InC/1.0/ |
op_doi |
https://doi.org/10.25959/23244959.v110.25959/23244959 |
_version_ |
1768380146252775424 |