On the Eddy Isopycnal Thickness Diffusivity of the Gent-McVVilliams Subgrid Mixing Parameterization

Output of an eddy-resolving model of the North Atlantic Ocean is used to diagnose the eddy thickness diffusivity coefficient, K, defined by Gent and McWilliams (1990) in their quasi-adiabatic parameterization for transports by mesoscale eddies. The results suggest that K has large spatial and tempor...

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Main Authors: Mototaka Nakamura, Yi Chao
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 1999
Subjects:
North Atlantic
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.511.942
http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/17599/1/99-1025.pdf
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spelling ftciteseerx:oai:CiteSeerX.psu:10.1.1.511.942 2023-05-15T17:28:40+02:00 On the Eddy Isopycnal Thickness Diffusivity of the Gent-McVVilliams Subgrid Mixing Parameterization Mototaka Nakamura Yi Chao The Pennsylvania State University CiteSeerX Archives 1999 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.511.942 http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/17599/1/99-1025.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.511.942 http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/17599/1/99-1025.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/17599/1/99-1025.pdf text 1999 ftciteseerx 2016-01-08T09:41:22Z Output of an eddy-resolving model of the North Atlantic Ocean is used to diagnose the eddy thickness diffusivity coefficient, K, defined by Gent and McWilliams (1990) in their quasi-adiabatic parameterization for transports by mesoscale eddies. The results suggest that K has large spatial and temporal variations, with negative values about half of the time. The order of magnitude of K shows a wide range in the western North Atlantic, varying from 10rn2s " to 107rn2s". Also, the value of K is considerably affected by the time scale used to define the high-frequency and low-frequency components. The results suggest that K should be a diagnosed variable that reflects the strength of eddy mixing during a model integration. 2 1 Text North Atlantic Unknown
institution Open Polar
collection Unknown
op_collection_id ftciteseerx
language English
description Output of an eddy-resolving model of the North Atlantic Ocean is used to diagnose the eddy thickness diffusivity coefficient, K, defined by Gent and McWilliams (1990) in their quasi-adiabatic parameterization for transports by mesoscale eddies. The results suggest that K has large spatial and temporal variations, with negative values about half of the time. The order of magnitude of K shows a wide range in the western North Atlantic, varying from 10rn2s " to 107rn2s". Also, the value of K is considerably affected by the time scale used to define the high-frequency and low-frequency components. The results suggest that K should be a diagnosed variable that reflects the strength of eddy mixing during a model integration. 2 1
author2 The Pennsylvania State University CiteSeerX Archives
format Text
author Mototaka Nakamura
Yi Chao
spellingShingle Mototaka Nakamura
Yi Chao
On the Eddy Isopycnal Thickness Diffusivity of the Gent-McVVilliams Subgrid Mixing Parameterization
author_facet Mototaka Nakamura
Yi Chao
author_sort Mototaka Nakamura
title On the Eddy Isopycnal Thickness Diffusivity of the Gent-McVVilliams Subgrid Mixing Parameterization
title_short On the Eddy Isopycnal Thickness Diffusivity of the Gent-McVVilliams Subgrid Mixing Parameterization
title_full On the Eddy Isopycnal Thickness Diffusivity of the Gent-McVVilliams Subgrid Mixing Parameterization
title_fullStr On the Eddy Isopycnal Thickness Diffusivity of the Gent-McVVilliams Subgrid Mixing Parameterization
title_full_unstemmed On the Eddy Isopycnal Thickness Diffusivity of the Gent-McVVilliams Subgrid Mixing Parameterization
title_sort on the eddy isopycnal thickness diffusivity of the gent-mcvvilliams subgrid mixing parameterization
publishDate 1999
url http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.511.942
http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/17599/1/99-1025.pdf
genre North Atlantic
genre_facet North Atlantic
op_source http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/17599/1/99-1025.pdf
op_relation http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.511.942
http://trs-new.jpl.nasa.gov/dspace/bitstream/2014/17599/1/99-1025.pdf
op_rights Metadata may be used without restrictions as long as the oai identifier remains attached to it.
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