Laboratory Studies of Exchange Between a Polar and a Subpolar Basin
Experiments on the exchange of a freshwater surface layer between two basins in a rotating tank demonstrate the contrasting roles of wind and buoyancy forces. Buoyancy-driven exchange occurs primarily in narrow boundary currents along the walls. Wind-driven exchange has a complex flow pattern with n...
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ftdtic:ADP007303 2023-05-15T14:53:33+02:00 Laboratory Studies of Exchange Between a Polar and a Subpolar Basin Hunkins, Kenneth LAMONT-DOHERTY GEOLOGICAL OBSERVATORY PALISADES NY 1992-03 text/html http://www.dtic.mil/docs/citations/ADP007303 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007303 en eng http://www.dtic.mil/docs/citations/ADP007303 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Atmospheric Physics Physical and Dynamic Oceanography *OCEAN BASINS *OCEAN MODELS ARCTIC OCEAN BUOYANCY CONVECTION EXCHANGE FLOW GREENLAND SEA PATTERNS WALLS WIND STRESS GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports Text 1992 ftdtic 2016-02-19T17:39:30Z Experiments on the exchange of a freshwater surface layer between two basins in a rotating tank demonstrate the contrasting roles of wind and buoyancy forces. Buoyancy-driven exchange occurs primarily in narrow boundary currents along the walls. Wind-driven exchange has a complex flow pattern with net transfer controlled by the sign of wind stress curl. Freshwater is transferred from the basin with positive curl to the one with negative curl. These results are related to freshwater flow from the Arctic Ocean to the Greenland Sea in which the southward flow of freshwater under buoyancy forces may be either increased or decreased by wind stress depending upon the sign of the curl. At present there is a negative stress curl over the Arctic Ocean which leads to a deep surface layer and no deep convection while opposite conditions in the Greenland Sea tend to remove the surface layer and allow deep convection. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 1990. Volume 1', AD-A253 027, p304-309. See also Volume 2, AD-A253 028. Text Arctic Arctic Ocean Climate change Greenland Greenland Sea Alaska Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean Fairbanks Greenland Curl ENVELOPE(-63.071,-63.071,-70.797,-70.797) |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Atmospheric Physics Physical and Dynamic Oceanography *OCEAN BASINS *OCEAN MODELS ARCTIC OCEAN BUOYANCY CONVECTION EXCHANGE FLOW GREENLAND SEA PATTERNS WALLS WIND STRESS GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports |
spellingShingle |
Atmospheric Physics Physical and Dynamic Oceanography *OCEAN BASINS *OCEAN MODELS ARCTIC OCEAN BUOYANCY CONVECTION EXCHANGE FLOW GREENLAND SEA PATTERNS WALLS WIND STRESS GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports Hunkins, Kenneth Laboratory Studies of Exchange Between a Polar and a Subpolar Basin |
topic_facet |
Atmospheric Physics Physical and Dynamic Oceanography *OCEAN BASINS *OCEAN MODELS ARCTIC OCEAN BUOYANCY CONVECTION EXCHANGE FLOW GREENLAND SEA PATTERNS WALLS WIND STRESS GREENHOUSE EFFECT ENVIRONMENTAL IMPACT *Global climate change Component Reports |
description |
Experiments on the exchange of a freshwater surface layer between two basins in a rotating tank demonstrate the contrasting roles of wind and buoyancy forces. Buoyancy-driven exchange occurs primarily in narrow boundary currents along the walls. Wind-driven exchange has a complex flow pattern with net transfer controlled by the sign of wind stress curl. Freshwater is transferred from the basin with positive curl to the one with negative curl. These results are related to freshwater flow from the Arctic Ocean to the Greenland Sea in which the southward flow of freshwater under buoyancy forces may be either increased or decreased by wind stress depending upon the sign of the curl. At present there is a negative stress curl over the Arctic Ocean which leads to a deep surface layer and no deep convection while opposite conditions in the Greenland Sea tend to remove the surface layer and allow deep convection. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 1990. Volume 1', AD-A253 027, p304-309. See also Volume 2, AD-A253 028. |
author2 |
LAMONT-DOHERTY GEOLOGICAL OBSERVATORY PALISADES NY |
format |
Text |
author |
Hunkins, Kenneth |
author_facet |
Hunkins, Kenneth |
author_sort |
Hunkins, Kenneth |
title |
Laboratory Studies of Exchange Between a Polar and a Subpolar Basin |
title_short |
Laboratory Studies of Exchange Between a Polar and a Subpolar Basin |
title_full |
Laboratory Studies of Exchange Between a Polar and a Subpolar Basin |
title_fullStr |
Laboratory Studies of Exchange Between a Polar and a Subpolar Basin |
title_full_unstemmed |
Laboratory Studies of Exchange Between a Polar and a Subpolar Basin |
title_sort |
laboratory studies of exchange between a polar and a subpolar basin |
publishDate |
1992 |
url |
http://www.dtic.mil/docs/citations/ADP007303 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007303 |
long_lat |
ENVELOPE(-63.071,-63.071,-70.797,-70.797) |
geographic |
Arctic Arctic Ocean Fairbanks Greenland Curl |
geographic_facet |
Arctic Arctic Ocean Fairbanks Greenland Curl |
genre |
Arctic Arctic Ocean Climate change Greenland Greenland Sea Alaska |
genre_facet |
Arctic Arctic Ocean Climate change Greenland Greenland Sea Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADP007303 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766325137859149824 |