Polar lows and arctic instability lows in the Bear Island region
The study of the “polar low episode” over the northern parts of the Norwegian Sea and the Barents Sea from 12 December 1982 to 16 December 1982 is continued. The role of baroclinic instability in the initial formation of a polar low near the ice edge is considered, including a discussion based on a...
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International Meteorological Institute, Stockholm
1992
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ftnerc:oai:nora.nerc.ac.uk:518871 2023-05-15T14:26:07+02:00 Polar lows and arctic instability lows in the Bear Island region Rasmussen, Erik A. Pdesersen, Torben S. Pedersen, Leif T. Turner, John 1992-03 http://nora.nerc.ac.uk/id/eprint/518871/ https://doi.org/10.1034/j.1600-0870.1992.t01-1-00004.x unknown International Meteorological Institute, Stockholm Rasmussen, Erik A.; Pdesersen, Torben S.; Pedersen, Leif T.; Turner, John orcid:0000-0002-6111-5122 . 1992 Polar lows and arctic instability lows in the Bear Island region. Tellus A, 44 (2). 133-154. https://doi.org/10.1034/j.1600-0870.1992.t01-1-00004.x <https://doi.org/10.1034/j.1600-0870.1992.t01-1-00004.x> Publication - Article PeerReviewed 1992 ftnerc https://doi.org/10.1034/j.1600-0870.1992.t01-1-00004.x 2023-02-04T19:45:55Z The study of the “polar low episode” over the northern parts of the Norwegian Sea and the Barents Sea from 12 December 1982 to 16 December 1982 is continued. The role of baroclinic instability in the initial formation of a polar low near the ice edge is considered, including a discussion based on a diagnostic IPV analysis. During the polar low episode, circulations develop on different horizontal scales including true mesoscale phenomena. The mesoscale circulations have the character of symmetric vortices of a much smaller horizontal scale, ∼100 km, than normally associated with polar lows. Although, during their initial formation, these circulations may be modulated by baroclinic instability associated with a shallow arctic frontal zone, they are predominantly convectively driven. The term “arctic instability lows” is suggested for these disturbances in order to distinguish them from the more “normal” polar lows. The polar low formations take place within a large synoptic scale cold dome. The importance of this cold dome as well of cold domes in general for polar low formations is briefly discussed. Article in Journal/Newspaper Arctic Arctic Barents Sea Bear Island Norwegian Sea Natural Environment Research Council: NERC Open Research Archive Arctic Barents Sea Norwegian Sea Bear Island ENVELOPE(-67.250,-67.250,-68.151,-68.151) Dome The ENVELOPE(166.000,166.000,-85.367,-85.367) Tellus A 44 2 133 154 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
The study of the “polar low episode” over the northern parts of the Norwegian Sea and the Barents Sea from 12 December 1982 to 16 December 1982 is continued. The role of baroclinic instability in the initial formation of a polar low near the ice edge is considered, including a discussion based on a diagnostic IPV analysis. During the polar low episode, circulations develop on different horizontal scales including true mesoscale phenomena. The mesoscale circulations have the character of symmetric vortices of a much smaller horizontal scale, ∼100 km, than normally associated with polar lows. Although, during their initial formation, these circulations may be modulated by baroclinic instability associated with a shallow arctic frontal zone, they are predominantly convectively driven. The term “arctic instability lows” is suggested for these disturbances in order to distinguish them from the more “normal” polar lows. The polar low formations take place within a large synoptic scale cold dome. The importance of this cold dome as well of cold domes in general for polar low formations is briefly discussed. |
format |
Article in Journal/Newspaper |
author |
Rasmussen, Erik A. Pdesersen, Torben S. Pedersen, Leif T. Turner, John |
spellingShingle |
Rasmussen, Erik A. Pdesersen, Torben S. Pedersen, Leif T. Turner, John Polar lows and arctic instability lows in the Bear Island region |
author_facet |
Rasmussen, Erik A. Pdesersen, Torben S. Pedersen, Leif T. Turner, John |
author_sort |
Rasmussen, Erik A. |
title |
Polar lows and arctic instability lows in the Bear Island region |
title_short |
Polar lows and arctic instability lows in the Bear Island region |
title_full |
Polar lows and arctic instability lows in the Bear Island region |
title_fullStr |
Polar lows and arctic instability lows in the Bear Island region |
title_full_unstemmed |
Polar lows and arctic instability lows in the Bear Island region |
title_sort |
polar lows and arctic instability lows in the bear island region |
publisher |
International Meteorological Institute, Stockholm |
publishDate |
1992 |
url |
http://nora.nerc.ac.uk/id/eprint/518871/ https://doi.org/10.1034/j.1600-0870.1992.t01-1-00004.x |
long_lat |
ENVELOPE(-67.250,-67.250,-68.151,-68.151) ENVELOPE(166.000,166.000,-85.367,-85.367) |
geographic |
Arctic Barents Sea Norwegian Sea Bear Island Dome The |
geographic_facet |
Arctic Barents Sea Norwegian Sea Bear Island Dome The |
genre |
Arctic Arctic Barents Sea Bear Island Norwegian Sea |
genre_facet |
Arctic Arctic Barents Sea Bear Island Norwegian Sea |
op_relation |
Rasmussen, Erik A.; Pdesersen, Torben S.; Pedersen, Leif T.; Turner, John orcid:0000-0002-6111-5122 . 1992 Polar lows and arctic instability lows in the Bear Island region. Tellus A, 44 (2). 133-154. https://doi.org/10.1034/j.1600-0870.1992.t01-1-00004.x <https://doi.org/10.1034/j.1600-0870.1992.t01-1-00004.x> |
op_doi |
https://doi.org/10.1034/j.1600-0870.1992.t01-1-00004.x |
container_title |
Tellus A |
container_volume |
44 |
container_issue |
2 |
container_start_page |
133 |
op_container_end_page |
154 |
_version_ |
1766298601379594240 |