From snow accumulation to snow depth distributions by quantifying meteoric ice fractions in the Weddell Sea
A year-round snow cover is a characteristic of Antarctic sea ice, which has significant implications for the energy and mass budgets of sea ice, e.g., by preventing surface melt in summer and enhancing sea ice growth through extensive snow ice formation. However, substantial observational gaps in th...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00069946 2023-12-17T10:19:56+01:00 From snow accumulation to snow depth distributions by quantifying meteoric ice fractions in the Weddell Sea Arndt, Stefanie Maaß, Nina Rossmann, Leonard Nicolaus, Marcel 2023-11 electronic https://doi.org/10.5194/egusphere-2023-2398 https://noa.gwlb.de/receive/cop_mods_00069946 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00068314/egusphere-2023-2398.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2398/egusphere-2023-2398.pdf eng eng Copernicus Publications https://doi.org/10.5194/egusphere-2023-2398 https://noa.gwlb.de/receive/cop_mods_00069946 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00068314/egusphere-2023-2398.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2398/egusphere-2023-2398.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2023 ftnonlinearchiv https://doi.org/10.5194/egusphere-2023-2398 2023-11-20T00:22:45Z A year-round snow cover is a characteristic of Antarctic sea ice, which has significant implications for the energy and mass budgets of sea ice, e.g., by preventing surface melt in summer and enhancing sea ice growth through extensive snow ice formation. However, substantial observational gaps in the seasonal cycle of Antarctic sea ice and its snow cover limit the understanding of important processes in the ice-covered Southern Ocean. They also introduce large uncertainties in satellite remote sensing applications and climate studies. Here we present results from 10 years of autonomous snow observations from Snow Buoys in the Weddell Sea. To distinguish between actual snow depth and potential snow ice thickness within the accumulated snowpack, a one-dimensional thermodynamic sea ice model is applied along the drift trajectories of the buoys. The results show that for 44 % of the analyzed Snow Buoy tracks snow ice formation with an average thickness of 35 cm was detected, which corresponds to about one quarter of the snow accumulation. In addition, we simulate the snow accumulation with the more complex SNOWPACK model, which results in superimposed ice thicknesses between 2 and 9 cm. These estimates will provide an important reference dataset for both snow depth and meteoric ice rates in the Southern Ocean. Article in Journal/Newspaper Antarc* Antarctic Sea ice Southern Ocean Weddell Sea Niedersächsisches Online-Archiv NOA Antarctic Southern Ocean Weddell Sea Weddell |
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Open Polar |
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Niedersächsisches Online-Archiv NOA |
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ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Arndt, Stefanie Maaß, Nina Rossmann, Leonard Nicolaus, Marcel From snow accumulation to snow depth distributions by quantifying meteoric ice fractions in the Weddell Sea |
topic_facet |
article Verlagsveröffentlichung |
description |
A year-round snow cover is a characteristic of Antarctic sea ice, which has significant implications for the energy and mass budgets of sea ice, e.g., by preventing surface melt in summer and enhancing sea ice growth through extensive snow ice formation. However, substantial observational gaps in the seasonal cycle of Antarctic sea ice and its snow cover limit the understanding of important processes in the ice-covered Southern Ocean. They also introduce large uncertainties in satellite remote sensing applications and climate studies. Here we present results from 10 years of autonomous snow observations from Snow Buoys in the Weddell Sea. To distinguish between actual snow depth and potential snow ice thickness within the accumulated snowpack, a one-dimensional thermodynamic sea ice model is applied along the drift trajectories of the buoys. The results show that for 44 % of the analyzed Snow Buoy tracks snow ice formation with an average thickness of 35 cm was detected, which corresponds to about one quarter of the snow accumulation. In addition, we simulate the snow accumulation with the more complex SNOWPACK model, which results in superimposed ice thicknesses between 2 and 9 cm. These estimates will provide an important reference dataset for both snow depth and meteoric ice rates in the Southern Ocean. |
format |
Article in Journal/Newspaper |
author |
Arndt, Stefanie Maaß, Nina Rossmann, Leonard Nicolaus, Marcel |
author_facet |
Arndt, Stefanie Maaß, Nina Rossmann, Leonard Nicolaus, Marcel |
author_sort |
Arndt, Stefanie |
title |
From snow accumulation to snow depth distributions by quantifying meteoric ice fractions in the Weddell Sea |
title_short |
From snow accumulation to snow depth distributions by quantifying meteoric ice fractions in the Weddell Sea |
title_full |
From snow accumulation to snow depth distributions by quantifying meteoric ice fractions in the Weddell Sea |
title_fullStr |
From snow accumulation to snow depth distributions by quantifying meteoric ice fractions in the Weddell Sea |
title_full_unstemmed |
From snow accumulation to snow depth distributions by quantifying meteoric ice fractions in the Weddell Sea |
title_sort |
from snow accumulation to snow depth distributions by quantifying meteoric ice fractions in the weddell sea |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://doi.org/10.5194/egusphere-2023-2398 https://noa.gwlb.de/receive/cop_mods_00069946 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00068314/egusphere-2023-2398.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2398/egusphere-2023-2398.pdf |
geographic |
Antarctic Southern Ocean Weddell Sea Weddell |
geographic_facet |
Antarctic Southern Ocean Weddell Sea Weddell |
genre |
Antarc* Antarctic Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Sea ice Southern Ocean Weddell Sea |
op_relation |
https://doi.org/10.5194/egusphere-2023-2398 https://noa.gwlb.de/receive/cop_mods_00069946 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00068314/egusphere-2023-2398.pdf https://egusphere.copernicus.org/preprints/2023/egusphere-2023-2398/egusphere-2023-2398.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/egusphere-2023-2398 |
_version_ |
1785587435257724928 |