The effects of ice arch formation on currents in Nares Strait during the springs of 2008 and 2009
In Nares Strait between Greenland and Ellesmere Island, ice arches hold back ice during winter and spring, preventing sea ice flux into Baffin Bay and freshwater flux (in the form of ice) into the North Atlantic. Freshwater flux influences the formation of deep water and affects the Meridional Overt...
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ftmacalestercoll:oai:digitalcommons.macalester.edu:mjpa-1004 2023-05-15T15:35:04+02:00 The effects of ice arch formation on currents in Nares Strait during the springs of 2008 and 2009 Einolf, Allison E 2014-01-23T23:00:20Z https://digitalcommons.macalester.edu/mjpa/vol1/iss1/5 http://digitalcommons.macalester.edu/physics_honors/14/ unknown DigitalCommons@Macalester College https://digitalcommons.macalester.edu/mjpa/vol1/iss1/5 http://digitalcommons.macalester.edu/physics_honors/14/ Macalester Journal of Physics and Astronomy Astrophysics and Astronomy Physics text 2014 ftmacalestercoll 2021-06-03T09:06:51Z In Nares Strait between Greenland and Ellesmere Island, ice arches hold back ice during winter and spring, preventing sea ice flux into Baffin Bay and freshwater flux (in the form of ice) into the North Atlantic. Freshwater flux influences the formation of deep water and affects the Meridional Overturning Circulation, with ramifications for global climate. We analyzed current velocity data from a moored array of ADCPs and model wind data at approximately 80.5º N to understand the effects that an ice arch at the southern end of Nares Strait had on currents in 2008, and the difference in 2009 when the southern ice arch did not form. We found much stronger currents near the surface in 2009 during the mobile ice regime. In 2008, we found small correlation with winds in spite of the landfast ice cover, and in 2009 we found correlation with winds on daily, weekly, and biweekly timescales at different depths. Text Baffin Bay Baffin Bay Baffin Ellesmere Island Greenland Nares strait North Atlantic Sea ice Macalester College (Minnesota): DigitalCommons@Macalester Baffin Bay Ellesmere Island Greenland Nares ENVELOPE(158.167,158.167,-81.450,-81.450) |
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Open Polar |
collection |
Macalester College (Minnesota): DigitalCommons@Macalester |
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ftmacalestercoll |
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unknown |
topic |
Astrophysics and Astronomy Physics |
spellingShingle |
Astrophysics and Astronomy Physics Einolf, Allison E The effects of ice arch formation on currents in Nares Strait during the springs of 2008 and 2009 |
topic_facet |
Astrophysics and Astronomy Physics |
description |
In Nares Strait between Greenland and Ellesmere Island, ice arches hold back ice during winter and spring, preventing sea ice flux into Baffin Bay and freshwater flux (in the form of ice) into the North Atlantic. Freshwater flux influences the formation of deep water and affects the Meridional Overturning Circulation, with ramifications for global climate. We analyzed current velocity data from a moored array of ADCPs and model wind data at approximately 80.5º N to understand the effects that an ice arch at the southern end of Nares Strait had on currents in 2008, and the difference in 2009 when the southern ice arch did not form. We found much stronger currents near the surface in 2009 during the mobile ice regime. In 2008, we found small correlation with winds in spite of the landfast ice cover, and in 2009 we found correlation with winds on daily, weekly, and biweekly timescales at different depths. |
format |
Text |
author |
Einolf, Allison E |
author_facet |
Einolf, Allison E |
author_sort |
Einolf, Allison E |
title |
The effects of ice arch formation on currents in Nares Strait during the springs of 2008 and 2009 |
title_short |
The effects of ice arch formation on currents in Nares Strait during the springs of 2008 and 2009 |
title_full |
The effects of ice arch formation on currents in Nares Strait during the springs of 2008 and 2009 |
title_fullStr |
The effects of ice arch formation on currents in Nares Strait during the springs of 2008 and 2009 |
title_full_unstemmed |
The effects of ice arch formation on currents in Nares Strait during the springs of 2008 and 2009 |
title_sort |
effects of ice arch formation on currents in nares strait during the springs of 2008 and 2009 |
publisher |
DigitalCommons@Macalester College |
publishDate |
2014 |
url |
https://digitalcommons.macalester.edu/mjpa/vol1/iss1/5 http://digitalcommons.macalester.edu/physics_honors/14/ |
long_lat |
ENVELOPE(158.167,158.167,-81.450,-81.450) |
geographic |
Baffin Bay Ellesmere Island Greenland Nares |
geographic_facet |
Baffin Bay Ellesmere Island Greenland Nares |
genre |
Baffin Bay Baffin Bay Baffin Ellesmere Island Greenland Nares strait North Atlantic Sea ice |
genre_facet |
Baffin Bay Baffin Bay Baffin Ellesmere Island Greenland Nares strait North Atlantic Sea ice |
op_source |
Macalester Journal of Physics and Astronomy |
op_relation |
https://digitalcommons.macalester.edu/mjpa/vol1/iss1/5 http://digitalcommons.macalester.edu/physics_honors/14/ |
_version_ |
1766365359873458176 |