Quantifying the Antarctic marginal ice zone with unsupervised statistical methods ...
<!--!introduction!--> This work presents a new method for categorising Antarctic sea ice regions to measure the width of the marginal ice zone (MIZ). The Antarctic MIZ is generally described as the area of sea ice affected by ocean surface waves and acts as an interface between the open Southe...
Main Authors: | , , , |
---|---|
Format: | Conference Object |
Language: | unknown |
Published: |
GFZ German Research Centre for Geosciences
2023
|
Subjects: | |
Online Access: | https://dx.doi.org/10.57757/iugg23-2410 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018347 |
id |
ftdatacite:10.57757/iugg23-2410 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.57757/iugg23-2410 2023-07-23T04:15:52+02:00 Quantifying the Antarctic marginal ice zone with unsupervised statistical methods ... Day, Noah Bennetts, Luke O'Farrell, Siobhan Alberello, Alberto 2023 https://dx.doi.org/10.57757/iugg23-2410 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018347 unknown GFZ German Research Centre for Geosciences Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Article ConferencePaper Oral 2023 ftdatacite https://doi.org/10.57757/iugg23-2410 2023-07-03T17:52:25Z <!--!introduction!--> This work presents a new method for categorising Antarctic sea ice regions to measure the width of the marginal ice zone (MIZ). The Antarctic MIZ is generally described as the area of sea ice affected by ocean surface waves and acts as an interface between the open Southern Ocean and the consolidated inner pack. Standalone CICE6 (with atmospheric, oceanic and wave forcing) was used to create a dataset consisting of variables describing the ice cover (sea ice concentration, age, thickness, etc.) as well as dynamic and thermodynamic processes. An unsupervised statistical method identified distinct sea ice regions (including the MIZ) and quantified the respective dominant physical processes. The impact of wave attenuation on the MIZ extent was measured and validated with recent altimetry observations. Floe size was found to enhance our MIZ classification to include high concentration pancake fields, which form over winter in the presence of waves. These results support the inclusion ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... Conference Object Antarc* Antarctic Sea ice Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Antarctic Southern Ocean The Antarctic Pancake ENVELOPE(-55.815,-55.815,52.600,52.600) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
description |
<!--!introduction!--> This work presents a new method for categorising Antarctic sea ice regions to measure the width of the marginal ice zone (MIZ). The Antarctic MIZ is generally described as the area of sea ice affected by ocean surface waves and acts as an interface between the open Southern Ocean and the consolidated inner pack. Standalone CICE6 (with atmospheric, oceanic and wave forcing) was used to create a dataset consisting of variables describing the ice cover (sea ice concentration, age, thickness, etc.) as well as dynamic and thermodynamic processes. An unsupervised statistical method identified distinct sea ice regions (including the MIZ) and quantified the respective dominant physical processes. The impact of wave attenuation on the MIZ extent was measured and validated with recent altimetry observations. Floe size was found to enhance our MIZ classification to include high concentration pancake fields, which form over winter in the presence of waves. These results support the inclusion ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
format |
Conference Object |
author |
Day, Noah Bennetts, Luke O'Farrell, Siobhan Alberello, Alberto |
spellingShingle |
Day, Noah Bennetts, Luke O'Farrell, Siobhan Alberello, Alberto Quantifying the Antarctic marginal ice zone with unsupervised statistical methods ... |
author_facet |
Day, Noah Bennetts, Luke O'Farrell, Siobhan Alberello, Alberto |
author_sort |
Day, Noah |
title |
Quantifying the Antarctic marginal ice zone with unsupervised statistical methods ... |
title_short |
Quantifying the Antarctic marginal ice zone with unsupervised statistical methods ... |
title_full |
Quantifying the Antarctic marginal ice zone with unsupervised statistical methods ... |
title_fullStr |
Quantifying the Antarctic marginal ice zone with unsupervised statistical methods ... |
title_full_unstemmed |
Quantifying the Antarctic marginal ice zone with unsupervised statistical methods ... |
title_sort |
quantifying the antarctic marginal ice zone with unsupervised statistical methods ... |
publisher |
GFZ German Research Centre for Geosciences |
publishDate |
2023 |
url |
https://dx.doi.org/10.57757/iugg23-2410 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018347 |
long_lat |
ENVELOPE(-55.815,-55.815,52.600,52.600) |
geographic |
Antarctic Southern Ocean The Antarctic Pancake |
geographic_facet |
Antarctic Southern Ocean The Antarctic Pancake |
genre |
Antarc* Antarctic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.57757/iugg23-2410 |
_version_ |
1772177029051973632 |