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:physics_honors-1013 2023-05-15T15:05:17+02:00 The effects of ice arch formation on currents in Nares Strait during the springs of 2008 and 2009 Einolf, Allison E 2013-05-05T07:00:00Z application/pdf https://digitalcommons.macalester.edu/physics_honors/14 https://digitalcommons.macalester.edu/cgi/viewcontent.cgi?article=1013&context=physics_honors unknown DigitalCommons@Macalester College https://digitalcommons.macalester.edu/physics_honors/14 https://digitalcommons.macalester.edu/cgi/viewcontent.cgi?article=1013&context=physics_honors Physics and Astronomy Honors Projects physical oceanography Arctic high latitudes ice arch climate change oceanography Fluid Dynamics text 2013 ftmacalestercoll 2021-06-03T09:05:33Z 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 Arctic Baffin Bay Baffin Bay Baffin Climate change Ellesmere Island Greenland Nares strait North Atlantic Sea ice Macalester College (Minnesota): DigitalCommons@Macalester Arctic Baffin Bay Ellesmere Island Greenland Nares ENVELOPE(158.167,158.167,-81.450,-81.450) |
institution |
Open Polar |
collection |
Macalester College (Minnesota): DigitalCommons@Macalester |
op_collection_id |
ftmacalestercoll |
language |
unknown |
topic |
physical oceanography Arctic high latitudes ice arch climate change oceanography Fluid Dynamics |
spellingShingle |
physical oceanography Arctic high latitudes ice arch climate change oceanography Fluid Dynamics Einolf, Allison E The effects of ice arch formation on currents in Nares Strait during the springs of 2008 and 2009 |
topic_facet |
physical oceanography Arctic high latitudes ice arch climate change oceanography Fluid Dynamics |
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 |
2013 |
url |
https://digitalcommons.macalester.edu/physics_honors/14 https://digitalcommons.macalester.edu/cgi/viewcontent.cgi?article=1013&context=physics_honors |
long_lat |
ENVELOPE(158.167,158.167,-81.450,-81.450) |
geographic |
Arctic Baffin Bay Ellesmere Island Greenland Nares |
geographic_facet |
Arctic Baffin Bay Ellesmere Island Greenland Nares |
genre |
Arctic Baffin Bay Baffin Bay Baffin Climate change Ellesmere Island Greenland Nares strait North Atlantic Sea ice |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Climate change Ellesmere Island Greenland Nares strait North Atlantic Sea ice |
op_source |
Physics and Astronomy Honors Projects |
op_relation |
https://digitalcommons.macalester.edu/physics_honors/14 https://digitalcommons.macalester.edu/cgi/viewcontent.cgi?article=1013&context=physics_honors |
_version_ |
1766337017546801152 |