Characteristics of cyclones following different pathways in the Gulf Stream region
Abstract The Northwest Atlantic is a region of strong temperature gradients and hence is a favourable location for wintertime cyclone intensification co‐located with the storm track. The temperature gradient is associated with both the sea surface temperature front along the Gulf Stream and the land...
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crwiley:10.1002/qj.3924 2024-09-15T18:23:31+00:00 Characteristics of cyclones following different pathways in the Gulf Stream region Tsopouridis, Leonidas Spensberger, Clemens Spengler, Thomas Research Council of Norway 2020 http://dx.doi.org/10.1002/qj.3924 https://onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3924 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/qj.3924 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3924 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Quarterly Journal of the Royal Meteorological Society volume 147, issue 734, page 392-407 ISSN 0035-9009 1477-870X journal-article 2020 crwiley https://doi.org/10.1002/qj.3924 2024-09-03T04:26:30Z Abstract The Northwest Atlantic is a region of strong temperature gradients and hence is a favourable location for wintertime cyclone intensification co‐located with the storm track. The temperature gradient is associated with both the sea surface temperature front along the Gulf Stream and the land–sea contrast. To understand the respective influences of the sea surface temperature (SST) front and land–sea contrast in the Gulf Stream region, as well as the role of upper‐level forcing on cyclone development, we track individual cyclones and categorise them depending on their propagation relative to the SST front. We concentrate on cyclones staying either on the cold (C1) or warm (C2) side of the SST front, and on cyclones that cross the SST front from the warm to the cold side (C3). Comparing these categories, we find that the land–sea contrast is more important for supplying baroclinicity to cyclones in C1, while the strong low‐level baroclinicity in C3 is also partially attributable to the SST front. The propagation of cyclones in C1 and C3 near the left exit region of the North Atlantic jet explains the higher intensification and precipitation. Article in Journal/Newspaper North Atlantic Northwest Atlantic Wiley Online Library Quarterly Journal of the Royal Meteorological Society 147 734 392 407 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The Northwest Atlantic is a region of strong temperature gradients and hence is a favourable location for wintertime cyclone intensification co‐located with the storm track. The temperature gradient is associated with both the sea surface temperature front along the Gulf Stream and the land–sea contrast. To understand the respective influences of the sea surface temperature (SST) front and land–sea contrast in the Gulf Stream region, as well as the role of upper‐level forcing on cyclone development, we track individual cyclones and categorise them depending on their propagation relative to the SST front. We concentrate on cyclones staying either on the cold (C1) or warm (C2) side of the SST front, and on cyclones that cross the SST front from the warm to the cold side (C3). Comparing these categories, we find that the land–sea contrast is more important for supplying baroclinicity to cyclones in C1, while the strong low‐level baroclinicity in C3 is also partially attributable to the SST front. The propagation of cyclones in C1 and C3 near the left exit region of the North Atlantic jet explains the higher intensification and precipitation. |
author2 |
Research Council of Norway |
format |
Article in Journal/Newspaper |
author |
Tsopouridis, Leonidas Spensberger, Clemens Spengler, Thomas |
spellingShingle |
Tsopouridis, Leonidas Spensberger, Clemens Spengler, Thomas Characteristics of cyclones following different pathways in the Gulf Stream region |
author_facet |
Tsopouridis, Leonidas Spensberger, Clemens Spengler, Thomas |
author_sort |
Tsopouridis, Leonidas |
title |
Characteristics of cyclones following different pathways in the Gulf Stream region |
title_short |
Characteristics of cyclones following different pathways in the Gulf Stream region |
title_full |
Characteristics of cyclones following different pathways in the Gulf Stream region |
title_fullStr |
Characteristics of cyclones following different pathways in the Gulf Stream region |
title_full_unstemmed |
Characteristics of cyclones following different pathways in the Gulf Stream region |
title_sort |
characteristics of cyclones following different pathways in the gulf stream region |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1002/qj.3924 https://onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3924 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/qj.3924 https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1002/qj.3924 |
genre |
North Atlantic Northwest Atlantic |
genre_facet |
North Atlantic Northwest Atlantic |
op_source |
Quarterly Journal of the Royal Meteorological Society volume 147, issue 734, page 392-407 ISSN 0035-9009 1477-870X |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/qj.3924 |
container_title |
Quarterly Journal of the Royal Meteorological Society |
container_volume |
147 |
container_issue |
734 |
container_start_page |
392 |
op_container_end_page |
407 |
_version_ |
1810463752165785600 |