Mesoscale Variability in the Labrador Sea
My long-term objective is to understand how deep convection, induced by strong buoyancy forcing at the ocean surface, influences the ocean circulation through convective plumes and geostrophic eddies. My immediate objective is to understand the interactions between convection and mesoscale circulati...
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ftdtic:ADA569315 2023-05-15T17:06:01+02:00 Mesoscale Variability in the Labrador Sea Legg, Sonya A WOODS HOLE OCEANOGRAPHIC INSTITUTION MA 1998-09-30 text/html http://www.dtic.mil/docs/citations/ADA569315 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA569315 en eng http://www.dtic.mil/docs/citations/ADA569315 Approved for public release; distribution is unlimited. DTIC Physical and Dynamic Oceanography *CONVECTION *LABRADOR SEA *OCEAN CURRENTS BUOYANCY FLOATS GEOSTROPHIC CURRENTS HOMOGENEITY OCEAN SURFACE VARIATIONS WATER MASSES Text 1998 ftdtic 2016-02-24T09:38:06Z My long-term objective is to understand how deep convection, induced by strong buoyancy forcing at the ocean surface, influences the ocean circulation through convective plumes and geostrophic eddies. My immediate objective is to understand the interactions between convection and mesoscale circulation, in order to quantify the influence of convective events on the large scale circulation. Such interactions include: (a) The lateral mixing generated by baroclinic instability and geostrophic eddy interactions. How efficient are lateral mixing processes in convective regions? Can these processes account for the relatively homogeneous water mass found in the Labrador Sea in spring, in contrast to the highly spatially variable winter convection observed? (b) The formation and persistence of isolated chimneys of convected fluid. Observations reveal isolated cores of dense fluid with distinct water mass properties many months after convection ceases. How do such isolated cores persist despite the homogenization hypothesized above? (c) The tracer variability. What are the mechanisms responsible for generation of tracer variability observed on a variety of scales in the Labrador Sea? Are plumes or eddies more effective at generating variability? How is tracer variability dissipated following convection? (d) Float signatures of mesoscale eddies in convection regions. How are isobaric float statistics influenced by the presence of a convective mesoscale eddy eld? What are the float signatures of the eddies and the plumes? See also ADM002252. Text Labrador Sea Defense Technical Information Center: DTIC Technical Reports database |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
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language |
English |
topic |
Physical and Dynamic Oceanography *CONVECTION *LABRADOR SEA *OCEAN CURRENTS BUOYANCY FLOATS GEOSTROPHIC CURRENTS HOMOGENEITY OCEAN SURFACE VARIATIONS WATER MASSES |
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Physical and Dynamic Oceanography *CONVECTION *LABRADOR SEA *OCEAN CURRENTS BUOYANCY FLOATS GEOSTROPHIC CURRENTS HOMOGENEITY OCEAN SURFACE VARIATIONS WATER MASSES Legg, Sonya A Mesoscale Variability in the Labrador Sea |
topic_facet |
Physical and Dynamic Oceanography *CONVECTION *LABRADOR SEA *OCEAN CURRENTS BUOYANCY FLOATS GEOSTROPHIC CURRENTS HOMOGENEITY OCEAN SURFACE VARIATIONS WATER MASSES |
description |
My long-term objective is to understand how deep convection, induced by strong buoyancy forcing at the ocean surface, influences the ocean circulation through convective plumes and geostrophic eddies. My immediate objective is to understand the interactions between convection and mesoscale circulation, in order to quantify the influence of convective events on the large scale circulation. Such interactions include: (a) The lateral mixing generated by baroclinic instability and geostrophic eddy interactions. How efficient are lateral mixing processes in convective regions? Can these processes account for the relatively homogeneous water mass found in the Labrador Sea in spring, in contrast to the highly spatially variable winter convection observed? (b) The formation and persistence of isolated chimneys of convected fluid. Observations reveal isolated cores of dense fluid with distinct water mass properties many months after convection ceases. How do such isolated cores persist despite the homogenization hypothesized above? (c) The tracer variability. What are the mechanisms responsible for generation of tracer variability observed on a variety of scales in the Labrador Sea? Are plumes or eddies more effective at generating variability? How is tracer variability dissipated following convection? (d) Float signatures of mesoscale eddies in convection regions. How are isobaric float statistics influenced by the presence of a convective mesoscale eddy eld? What are the float signatures of the eddies and the plumes? See also ADM002252. |
author2 |
WOODS HOLE OCEANOGRAPHIC INSTITUTION MA |
format |
Text |
author |
Legg, Sonya A |
author_facet |
Legg, Sonya A |
author_sort |
Legg, Sonya A |
title |
Mesoscale Variability in the Labrador Sea |
title_short |
Mesoscale Variability in the Labrador Sea |
title_full |
Mesoscale Variability in the Labrador Sea |
title_fullStr |
Mesoscale Variability in the Labrador Sea |
title_full_unstemmed |
Mesoscale Variability in the Labrador Sea |
title_sort |
mesoscale variability in the labrador sea |
publishDate |
1998 |
url |
http://www.dtic.mil/docs/citations/ADA569315 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA569315 |
genre |
Labrador Sea |
genre_facet |
Labrador Sea |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA569315 |
op_rights |
Approved for public release; distribution is unlimited. |
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1766060918045671424 |