Sea-Ice Distribution and Mixed-Layer Depths in Fram Strait
In an effort to understand the dynamics of the Arctic sea-ice edge, we present a simple model of heat and mass transfer in the Fram Strait that reveals some fundamental mechanisms controlling sea-ice extent in the marginal seas and the depth and properties of the Arctic mixed layer. We identify and...
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ftdatacite:10.48550/arxiv.1712.07599 2023-05-15T14:46:40+02:00 Sea-Ice Distribution and Mixed-Layer Depths in Fram Strait Agarwal, Sahil Worster, M. Grae 2017 https://dx.doi.org/10.48550/arxiv.1712.07599 https://arxiv.org/abs/1712.07599 unknown arXiv arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Atmospheric and Oceanic Physics physics.ao-ph Geophysics physics.geo-ph FOS Physical sciences Preprint Article article CreativeWork 2017 ftdatacite https://doi.org/10.48550/arxiv.1712.07599 2022-04-01T10:01:03Z In an effort to understand the dynamics of the Arctic sea-ice edge, we present a simple model of heat and mass transfer in the Fram Strait that reveals some fundamental mechanisms controlling sea-ice extent in the marginal seas and the depth and properties of the Arctic mixed layer. We identify and study key mechanisms relating to the sea-ice wedge described by Untersteiner, a boundary-layer structure near the ice edge, demonstrating how ice thickness and extent depend on ice-export rates, atmospheric forcing and the properties of incoming warm and salty Atlantic water in the West Spitsbergen Current. Our time-dependent results demonstrate a seasonal asymmetry between the rates of ice advance and retreat and explain the significant variations in the Southerly extent of sea ice across the Fram Strait, with a long ice tongue corresponding with the East Greenland Current. Our simple model indicates that thinning of the Arctic sea-ice cover will lead to warming and freshening of the North Atlantic, which would give a de-stabilizing feedback to the Arctic ice cover, leading to a slowdown of the Atlantic Meridional Overturning Circulation. Report Arctic East Greenland east greenland current Fram Strait Greenland North Atlantic Sea ice Spitsbergen DataCite Metadata Store (German National Library of Science and Technology) Arctic Greenland |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Atmospheric and Oceanic Physics physics.ao-ph Geophysics physics.geo-ph FOS Physical sciences |
spellingShingle |
Atmospheric and Oceanic Physics physics.ao-ph Geophysics physics.geo-ph FOS Physical sciences Agarwal, Sahil Worster, M. Grae Sea-Ice Distribution and Mixed-Layer Depths in Fram Strait |
topic_facet |
Atmospheric and Oceanic Physics physics.ao-ph Geophysics physics.geo-ph FOS Physical sciences |
description |
In an effort to understand the dynamics of the Arctic sea-ice edge, we present a simple model of heat and mass transfer in the Fram Strait that reveals some fundamental mechanisms controlling sea-ice extent in the marginal seas and the depth and properties of the Arctic mixed layer. We identify and study key mechanisms relating to the sea-ice wedge described by Untersteiner, a boundary-layer structure near the ice edge, demonstrating how ice thickness and extent depend on ice-export rates, atmospheric forcing and the properties of incoming warm and salty Atlantic water in the West Spitsbergen Current. Our time-dependent results demonstrate a seasonal asymmetry between the rates of ice advance and retreat and explain the significant variations in the Southerly extent of sea ice across the Fram Strait, with a long ice tongue corresponding with the East Greenland Current. Our simple model indicates that thinning of the Arctic sea-ice cover will lead to warming and freshening of the North Atlantic, which would give a de-stabilizing feedback to the Arctic ice cover, leading to a slowdown of the Atlantic Meridional Overturning Circulation. |
format |
Report |
author |
Agarwal, Sahil Worster, M. Grae |
author_facet |
Agarwal, Sahil Worster, M. Grae |
author_sort |
Agarwal, Sahil |
title |
Sea-Ice Distribution and Mixed-Layer Depths in Fram Strait |
title_short |
Sea-Ice Distribution and Mixed-Layer Depths in Fram Strait |
title_full |
Sea-Ice Distribution and Mixed-Layer Depths in Fram Strait |
title_fullStr |
Sea-Ice Distribution and Mixed-Layer Depths in Fram Strait |
title_full_unstemmed |
Sea-Ice Distribution and Mixed-Layer Depths in Fram Strait |
title_sort |
sea-ice distribution and mixed-layer depths in fram strait |
publisher |
arXiv |
publishDate |
2017 |
url |
https://dx.doi.org/10.48550/arxiv.1712.07599 https://arxiv.org/abs/1712.07599 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic East Greenland east greenland current Fram Strait Greenland North Atlantic Sea ice Spitsbergen |
genre_facet |
Arctic East Greenland east greenland current Fram Strait Greenland North Atlantic Sea ice Spitsbergen |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1712.07599 |
_version_ |
1766317867814354944 |