Trends in cyclones in the high‐latitude North Atlantic during 1979–2016
Abstract We report an increase in winter (DJF) cyclone densities in the areas around Svalbard and in northwestern Barents Sea and a decrease in cyclone densities in southeastern Barents Sea during 1979–2016. Despite high interannual variability, the trends are significant at the 90% confidence level...
Published in: | Quarterly Journal of the Royal Meteorological Society |
---|---|
Main Authors: | , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2019
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/qj.3707 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.3707 https://onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3707 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/qj.3707 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3707 |
id |
crwiley:10.1002/qj.3707 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/qj.3707 2024-06-02T08:04:07+00:00 Trends in cyclones in the high‐latitude North Atlantic during 1979–2016 Wickström, S. Jonassen, M. O. Vihma, T. Uotila, P. Academy of Finland 2019 http://dx.doi.org/10.1002/qj.3707 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.3707 https://onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3707 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/qj.3707 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3707 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Quarterly Journal of the Royal Meteorological Society volume 146, issue 727, page 762-779 ISSN 0035-9009 1477-870X journal-article 2019 crwiley https://doi.org/10.1002/qj.3707 2024-05-03T11:57:03Z Abstract We report an increase in winter (DJF) cyclone densities in the areas around Svalbard and in northwestern Barents Sea and a decrease in cyclone densities in southeastern Barents Sea during 1979–2016. Despite high interannual variability, the trends are significant at the 90% confidence level. The changes appear as a result of a shift into a more meridional winter storm track in the high‐latitude North Atlantic, associated with a positive trend in the Scandinavian Pattern. A significant decrease in the Brunt–Väisälä frequency east of Svalbard and a significant increase in the Eady Growth Rate north of Svalbard indicate increased baroclinicity, favouring enhanced cyclone activity in these regions. For the first time, we apply composite analysis to explicitly address regional consequences of these wintertime changes in the high‐latitude North Atlantic. We find a tendency toward a warmer and more moist atmospheric state in the Barents Sea and over Svalbard with increased cyclone activity around Svalbard. Article in Journal/Newspaper Barents Sea North Atlantic Svalbard Wiley Online Library Barents Sea Svalbard Quarterly Journal of the Royal Meteorological Society 146 727 762 779 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract We report an increase in winter (DJF) cyclone densities in the areas around Svalbard and in northwestern Barents Sea and a decrease in cyclone densities in southeastern Barents Sea during 1979–2016. Despite high interannual variability, the trends are significant at the 90% confidence level. The changes appear as a result of a shift into a more meridional winter storm track in the high‐latitude North Atlantic, associated with a positive trend in the Scandinavian Pattern. A significant decrease in the Brunt–Väisälä frequency east of Svalbard and a significant increase in the Eady Growth Rate north of Svalbard indicate increased baroclinicity, favouring enhanced cyclone activity in these regions. For the first time, we apply composite analysis to explicitly address regional consequences of these wintertime changes in the high‐latitude North Atlantic. We find a tendency toward a warmer and more moist atmospheric state in the Barents Sea and over Svalbard with increased cyclone activity around Svalbard. |
author2 |
Academy of Finland |
format |
Article in Journal/Newspaper |
author |
Wickström, S. Jonassen, M. O. Vihma, T. Uotila, P. |
spellingShingle |
Wickström, S. Jonassen, M. O. Vihma, T. Uotila, P. Trends in cyclones in the high‐latitude North Atlantic during 1979–2016 |
author_facet |
Wickström, S. Jonassen, M. O. Vihma, T. Uotila, P. |
author_sort |
Wickström, S. |
title |
Trends in cyclones in the high‐latitude North Atlantic during 1979–2016 |
title_short |
Trends in cyclones in the high‐latitude North Atlantic during 1979–2016 |
title_full |
Trends in cyclones in the high‐latitude North Atlantic during 1979–2016 |
title_fullStr |
Trends in cyclones in the high‐latitude North Atlantic during 1979–2016 |
title_full_unstemmed |
Trends in cyclones in the high‐latitude North Atlantic during 1979–2016 |
title_sort |
trends in cyclones in the high‐latitude north atlantic during 1979–2016 |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/qj.3707 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fqj.3707 https://onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3707 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/qj.3707 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3707 |
geographic |
Barents Sea Svalbard |
geographic_facet |
Barents Sea Svalbard |
genre |
Barents Sea North Atlantic Svalbard |
genre_facet |
Barents Sea North Atlantic Svalbard |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 146, issue 727, page 762-779 ISSN 0035-9009 1477-870X |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/qj.3707 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
146 |
container_issue |
727 |
container_start_page |
762 |
op_container_end_page |
779 |
_version_ |
1800748750614822912 |