The dynamic climatology of the beaufort to Laptev sea sector of the polar basin for the summers of 1975 and 1976
Abstract For the summer months of 1975 and 1976, the total vertical velocity at 850 millibars is computed from a diagnostic atmospheric model as an index of synoptic activity in the Beaufort to Laptev Sea sector of the Polar Basin. The objective is to identify the major modes of synoptic activity in...
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crwiley:10.1002/joc.3370030403 2024-06-02T08:02:16+00:00 The dynamic climatology of the beaufort to Laptev sea sector of the polar basin for the summers of 1975 and 1976 Ledrew, Ellsworth F. 1983 http://dx.doi.org/10.1002/joc.3370030403 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.3370030403 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.3370030403 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Climatology volume 3, issue 4, page 335-359 ISSN 0196-1748 journal-article 1983 crwiley https://doi.org/10.1002/joc.3370030403 2024-05-03T11:43:15Z Abstract For the summer months of 1975 and 1976, the total vertical velocity at 850 millibars is computed from a diagnostic atmospheric model as an index of synoptic activity in the Beaufort to Laptev Sea sector of the Polar Basin. The objective is to identify the major modes of synoptic activity in the region and to determine the major formative mechanisms for significant synoptic vortices. This will lead to an understanding of the dynamics involved in the evolution and maintenance of synoptic patterns in the Arctic. Cluster analysis is used to stratify the 850 mb geopotential height data into synoptic modes. The mean 850 mb total vertical velocity field for each cluster is calculated, and indices related to each of the formative mechanisms are related to these individual fields through regression analysis and pattern comparison. These mechanisms are: vorticity and thickness advection, diabatic effects of latent heat release and surface heating, and frictional and orographic influences at the surface. Explanations for the dynamics of the major regional vortices are discussed. Article in Journal/Newspaper Arctic laptev Laptev Sea Wiley Online Library Arctic Laptev Sea Journal of Climatology 3 4 335 359 |
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Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract For the summer months of 1975 and 1976, the total vertical velocity at 850 millibars is computed from a diagnostic atmospheric model as an index of synoptic activity in the Beaufort to Laptev Sea sector of the Polar Basin. The objective is to identify the major modes of synoptic activity in the region and to determine the major formative mechanisms for significant synoptic vortices. This will lead to an understanding of the dynamics involved in the evolution and maintenance of synoptic patterns in the Arctic. Cluster analysis is used to stratify the 850 mb geopotential height data into synoptic modes. The mean 850 mb total vertical velocity field for each cluster is calculated, and indices related to each of the formative mechanisms are related to these individual fields through regression analysis and pattern comparison. These mechanisms are: vorticity and thickness advection, diabatic effects of latent heat release and surface heating, and frictional and orographic influences at the surface. Explanations for the dynamics of the major regional vortices are discussed. |
format |
Article in Journal/Newspaper |
author |
Ledrew, Ellsworth F. |
spellingShingle |
Ledrew, Ellsworth F. The dynamic climatology of the beaufort to Laptev sea sector of the polar basin for the summers of 1975 and 1976 |
author_facet |
Ledrew, Ellsworth F. |
author_sort |
Ledrew, Ellsworth F. |
title |
The dynamic climatology of the beaufort to Laptev sea sector of the polar basin for the summers of 1975 and 1976 |
title_short |
The dynamic climatology of the beaufort to Laptev sea sector of the polar basin for the summers of 1975 and 1976 |
title_full |
The dynamic climatology of the beaufort to Laptev sea sector of the polar basin for the summers of 1975 and 1976 |
title_fullStr |
The dynamic climatology of the beaufort to Laptev sea sector of the polar basin for the summers of 1975 and 1976 |
title_full_unstemmed |
The dynamic climatology of the beaufort to Laptev sea sector of the polar basin for the summers of 1975 and 1976 |
title_sort |
dynamic climatology of the beaufort to laptev sea sector of the polar basin for the summers of 1975 and 1976 |
publisher |
Wiley |
publishDate |
1983 |
url |
http://dx.doi.org/10.1002/joc.3370030403 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fjoc.3370030403 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/joc.3370030403 |
geographic |
Arctic Laptev Sea |
geographic_facet |
Arctic Laptev Sea |
genre |
Arctic laptev Laptev Sea |
genre_facet |
Arctic laptev Laptev Sea |
op_source |
Journal of Climatology volume 3, issue 4, page 335-359 ISSN 0196-1748 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/joc.3370030403 |
container_title |
Journal of Climatology |
container_volume |
3 |
container_issue |
4 |
container_start_page |
335 |
op_container_end_page |
359 |
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1800746767654846464 |