The role of eddies for the deep water formation in the Labrador Sea
Previous ocean general circulation models of the North Atlantic tend to show large deficits in simulating observed characteristics of deep water formation in the Labrador Sea. It is shown that three key processes lead to significant improvements: 1) an adequate representation of the freshwater excha...
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ftunivkiel:oai:macau.uni-kiel.de:diss_mods_00001342 2024-06-23T07:53:17+00:00 The role of eddies for the deep water formation in the Labrador Sea Czeschel, Lars Böning, Claus W. Brandt, Peter 2004 https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-13427 https://macau.uni-kiel.de/receive/diss_mods_00001342 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/dissertation_derivate_00001342/d1342.pdf eng eng https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-13427 https://macau.uni-kiel.de/receive/diss_mods_00001342 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/dissertation_derivate_00001342/d1342.pdf https://rightsstatements.org/page/InC/1.0/ info:eu-repo/semantics/openAccess ddc:550 thesis ocean modeling restratification Labrador Sea mixing convection interannual variability eddies deep water formation Labradorsee Tiefenwasser Thermohaline Konvektion Wirbel dissertation Text doc-type:PhDThesis 2004 ftunivkiel 2024-06-12T14:21:16Z Previous ocean general circulation models of the North Atlantic tend to show large deficits in simulating observed characteristics of deep water formation in the Labrador Sea. It is shown that three key processes lead to significant improvements: 1) an adequate representation of the freshwater exchange with the Nordic Seas; 2) an efficient representation of eddy fluxes between the boundary currents and the interior of the Labrador Sea; 3) low (numerical) diapycnal mixing. Based on these results, a refined eddy resolving model of the North Atlantic is developed and analyzed. The model suggests two novel mechanisms of convection variability related to wind stress: 1) in case of enhanced wind stress a higher generation of well stratified Cape Desolation eddies leads to significantly lower Labrador Sea Water formation; 2) wind stresses parallel to the coast west of Greenland causes Ekman transports of relatively fresh and cold water off the coast towards the interior. This buoyant water at the surface stratifies the water column on the Greenland side of the Labrador Sea and suppresses deep convection. Doctoral or Postdoctoral Thesis Greenland Labrador Sea Nordic Seas North Atlantic MACAU: Open Access Repository of Kiel University Greenland |
institution |
Open Polar |
collection |
MACAU: Open Access Repository of Kiel University |
op_collection_id |
ftunivkiel |
language |
English |
topic |
ddc:550 thesis ocean modeling restratification Labrador Sea mixing convection interannual variability eddies deep water formation Labradorsee Tiefenwasser Thermohaline Konvektion Wirbel |
spellingShingle |
ddc:550 thesis ocean modeling restratification Labrador Sea mixing convection interannual variability eddies deep water formation Labradorsee Tiefenwasser Thermohaline Konvektion Wirbel Czeschel, Lars The role of eddies for the deep water formation in the Labrador Sea |
topic_facet |
ddc:550 thesis ocean modeling restratification Labrador Sea mixing convection interannual variability eddies deep water formation Labradorsee Tiefenwasser Thermohaline Konvektion Wirbel |
description |
Previous ocean general circulation models of the North Atlantic tend to show large deficits in simulating observed characteristics of deep water formation in the Labrador Sea. It is shown that three key processes lead to significant improvements: 1) an adequate representation of the freshwater exchange with the Nordic Seas; 2) an efficient representation of eddy fluxes between the boundary currents and the interior of the Labrador Sea; 3) low (numerical) diapycnal mixing. Based on these results, a refined eddy resolving model of the North Atlantic is developed and analyzed. The model suggests two novel mechanisms of convection variability related to wind stress: 1) in case of enhanced wind stress a higher generation of well stratified Cape Desolation eddies leads to significantly lower Labrador Sea Water formation; 2) wind stresses parallel to the coast west of Greenland causes Ekman transports of relatively fresh and cold water off the coast towards the interior. This buoyant water at the surface stratifies the water column on the Greenland side of the Labrador Sea and suppresses deep convection. |
author2 |
Böning, Claus W. Brandt, Peter |
format |
Doctoral or Postdoctoral Thesis |
author |
Czeschel, Lars |
author_facet |
Czeschel, Lars |
author_sort |
Czeschel, Lars |
title |
The role of eddies for the deep water formation in the Labrador Sea |
title_short |
The role of eddies for the deep water formation in the Labrador Sea |
title_full |
The role of eddies for the deep water formation in the Labrador Sea |
title_fullStr |
The role of eddies for the deep water formation in the Labrador Sea |
title_full_unstemmed |
The role of eddies for the deep water formation in the Labrador Sea |
title_sort |
role of eddies for the deep water formation in the labrador sea |
publishDate |
2004 |
url |
https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-13427 https://macau.uni-kiel.de/receive/diss_mods_00001342 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/dissertation_derivate_00001342/d1342.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Labrador Sea Nordic Seas North Atlantic |
genre_facet |
Greenland Labrador Sea Nordic Seas North Atlantic |
op_relation |
https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-13427 https://macau.uni-kiel.de/receive/diss_mods_00001342 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/dissertation_derivate_00001342/d1342.pdf |
op_rights |
https://rightsstatements.org/page/InC/1.0/ info:eu-repo/semantics/openAccess |
_version_ |
1802644860649340928 |