Potential positive feedback between Greenland ice sheet melt and Baffin Bay heat content on the west Greenland shelf
Greenland ice sheet meltwater runoff has been increasing in recent decades, especially in the southwest and the northeast. To determine the impact of this accelerating meltwater flux on Baffin Bay, we examine eight numerical experiments using an ocean-sea ice model: Nucleus for European Modelling of...
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ftunivalberta:oai:era.library.ualberta.ca:bc0ef8bf-411d-47c4-85f3-8607c27fec41 2023-05-15T14:28:50+02:00 Potential positive feedback between Greenland ice sheet melt and Baffin Bay heat content on the west Greenland shelf Hu, Xianmin Myers, Paul G. de la Guardia, Laura C. 2015 https://era.library.ualberta.ca/items/bc0ef8bf-411d-47c4-85f3-8607c27fec41 https://doi.org/10.7939/R3125QQ6R English eng https://era.library.ualberta.ca/items/bc0ef8bf-411d-47c4-85f3-8607c27fec41 doi:10.7939/R3125QQ6R © 2015. American Geophysical Union. All Rights Reserved. Greenland Ice Sheet Melt West Greenland Irminger Water Heat Content Baffin Bay CAA Freshwater Transport Article (Published) 2015 ftunivalberta https://doi.org/10.7939/R3125QQ6R 2022-08-22T20:13:26Z Greenland ice sheet meltwater runoff has been increasing in recent decades, especially in the southwest and the northeast. To determine the impact of this accelerating meltwater flux on Baffin Bay, we examine eight numerical experiments using an ocean-sea ice model: Nucleus for European Modelling of the Ocean. Enhanced runoff causes shoreward increasing sea surface height and strengthens the stratification in Baffin Bay. The changes in sea surface height reduces the southward transport through the Canadian Arctic Archipelago and strengthens the gyre circulation within Baffin Bay. The latter leads to further freshening of surface waters as it produces a larger northward surface freshwater transport across Davis Strait. Increasing the meltwater runoff leads to a warming and shallowing of the west Greenland Irminger water on the northwest Greenland shelf. These warmer waters can now more easily enter fjords on the Greenland coast and thus provide additional heat to accelerate the melting of marine-terminating glaciers. Other/Unknown Material Arctic Archipelago Arctic Baffin Bay Baffin Bay Baffin Canadian Arctic Archipelago Davis Strait Greenland Ice Sheet Sea ice University of Alberta: Era - Education and Research Archive Arctic Baffin Bay Canadian Arctic Archipelago Greenland |
institution |
Open Polar |
collection |
University of Alberta: Era - Education and Research Archive |
op_collection_id |
ftunivalberta |
language |
English |
topic |
Greenland Ice Sheet Melt West Greenland Irminger Water Heat Content Baffin Bay CAA Freshwater Transport |
spellingShingle |
Greenland Ice Sheet Melt West Greenland Irminger Water Heat Content Baffin Bay CAA Freshwater Transport Hu, Xianmin Myers, Paul G. de la Guardia, Laura C. Potential positive feedback between Greenland ice sheet melt and Baffin Bay heat content on the west Greenland shelf |
topic_facet |
Greenland Ice Sheet Melt West Greenland Irminger Water Heat Content Baffin Bay CAA Freshwater Transport |
description |
Greenland ice sheet meltwater runoff has been increasing in recent decades, especially in the southwest and the northeast. To determine the impact of this accelerating meltwater flux on Baffin Bay, we examine eight numerical experiments using an ocean-sea ice model: Nucleus for European Modelling of the Ocean. Enhanced runoff causes shoreward increasing sea surface height and strengthens the stratification in Baffin Bay. The changes in sea surface height reduces the southward transport through the Canadian Arctic Archipelago and strengthens the gyre circulation within Baffin Bay. The latter leads to further freshening of surface waters as it produces a larger northward surface freshwater transport across Davis Strait. Increasing the meltwater runoff leads to a warming and shallowing of the west Greenland Irminger water on the northwest Greenland shelf. These warmer waters can now more easily enter fjords on the Greenland coast and thus provide additional heat to accelerate the melting of marine-terminating glaciers. |
format |
Other/Unknown Material |
author |
Hu, Xianmin Myers, Paul G. de la Guardia, Laura C. |
author_facet |
Hu, Xianmin Myers, Paul G. de la Guardia, Laura C. |
author_sort |
Hu, Xianmin |
title |
Potential positive feedback between Greenland ice sheet melt and Baffin Bay heat content on the west Greenland shelf |
title_short |
Potential positive feedback between Greenland ice sheet melt and Baffin Bay heat content on the west Greenland shelf |
title_full |
Potential positive feedback between Greenland ice sheet melt and Baffin Bay heat content on the west Greenland shelf |
title_fullStr |
Potential positive feedback between Greenland ice sheet melt and Baffin Bay heat content on the west Greenland shelf |
title_full_unstemmed |
Potential positive feedback between Greenland ice sheet melt and Baffin Bay heat content on the west Greenland shelf |
title_sort |
potential positive feedback between greenland ice sheet melt and baffin bay heat content on the west greenland shelf |
publishDate |
2015 |
url |
https://era.library.ualberta.ca/items/bc0ef8bf-411d-47c4-85f3-8607c27fec41 https://doi.org/10.7939/R3125QQ6R |
geographic |
Arctic Baffin Bay Canadian Arctic Archipelago Greenland |
geographic_facet |
Arctic Baffin Bay Canadian Arctic Archipelago Greenland |
genre |
Arctic Archipelago Arctic Baffin Bay Baffin Bay Baffin Canadian Arctic Archipelago Davis Strait Greenland Ice Sheet Sea ice |
genre_facet |
Arctic Archipelago Arctic Baffin Bay Baffin Bay Baffin Canadian Arctic Archipelago Davis Strait Greenland Ice Sheet Sea ice |
op_relation |
https://era.library.ualberta.ca/items/bc0ef8bf-411d-47c4-85f3-8607c27fec41 doi:10.7939/R3125QQ6R |
op_rights |
© 2015. American Geophysical Union. All Rights Reserved. |
op_doi |
https://doi.org/10.7939/R3125QQ6R |
_version_ |
1766302982609043456 |