Gulf Stream Sea Surface Temperature Anomalies Associated With the Extratropical Transition of North Atlantic Tropical Cyclones
Abstract This study investigates Gulf Stream (GS) sea surface temperature (SST) anomalies associated with the extratropical transition (ET) of tropical cyclones (TCs) in the North Atlantic. Composites of western North Atlantic TCs indicate that GS SSTs are warmer, and both large‐ and fine‐scale SST...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1029/2023GL102904 https://doaj.org/article/ec0fa163563945928636efc805e9f06b |
id |
ftdoajarticles:oai:doaj.org/article:ec0fa163563945928636efc805e9f06b |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:ec0fa163563945928636efc805e9f06b 2024-09-15T18:21:26+00:00 Gulf Stream Sea Surface Temperature Anomalies Associated With the Extratropical Transition of North Atlantic Tropical Cyclones Evan Jones Rhys Parfitt Allison A. Wing Robert Hart 2023-08-01T00:00:00Z https://doi.org/10.1029/2023GL102904 https://doaj.org/article/ec0fa163563945928636efc805e9f06b EN eng Wiley https://doi.org/10.1029/2023GL102904 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL102904 https://doaj.org/article/ec0fa163563945928636efc805e9f06b Geophysical Research Letters, Vol 50, Iss 16, Pp n/a-n/a (2023) extratropical transition western boundary current sea surface temperatures tropical cyclones frontogenesis Geophysics. Cosmic physics QC801-809 article 2023 ftdoajarticles https://doi.org/10.1029/2023GL102904 2024-08-05T17:49:23Z Abstract This study investigates Gulf Stream (GS) sea surface temperature (SST) anomalies associated with the extratropical transition (ET) of tropical cyclones (TCs) in the North Atlantic. Composites of western North Atlantic TCs indicate that GS SSTs are warmer, and both large‐ and fine‐scale SST gradients are weaker than average, for TCs that begin the ET process but do not complete it, compared with TCs that do. Further analysis suggests that the associated fine‐scale GS SST gradient anomalies are related to atmospheric processes but not the same as those that are typically associated with the onset of ET. As sensible heat flux gradients and surface diabatic frontogenesis are shown to generally scale with the local SST gradient strength, these results suggest that knowledge of the fine‐scale GS SST gradient in the weeks prior to the arrival of a TC might potentially provide additional information regarding the likelihood of that system completing ET. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Geophysical Research Letters 50 16 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
extratropical transition western boundary current sea surface temperatures tropical cyclones frontogenesis Geophysics. Cosmic physics QC801-809 |
spellingShingle |
extratropical transition western boundary current sea surface temperatures tropical cyclones frontogenesis Geophysics. Cosmic physics QC801-809 Evan Jones Rhys Parfitt Allison A. Wing Robert Hart Gulf Stream Sea Surface Temperature Anomalies Associated With the Extratropical Transition of North Atlantic Tropical Cyclones |
topic_facet |
extratropical transition western boundary current sea surface temperatures tropical cyclones frontogenesis Geophysics. Cosmic physics QC801-809 |
description |
Abstract This study investigates Gulf Stream (GS) sea surface temperature (SST) anomalies associated with the extratropical transition (ET) of tropical cyclones (TCs) in the North Atlantic. Composites of western North Atlantic TCs indicate that GS SSTs are warmer, and both large‐ and fine‐scale SST gradients are weaker than average, for TCs that begin the ET process but do not complete it, compared with TCs that do. Further analysis suggests that the associated fine‐scale GS SST gradient anomalies are related to atmospheric processes but not the same as those that are typically associated with the onset of ET. As sensible heat flux gradients and surface diabatic frontogenesis are shown to generally scale with the local SST gradient strength, these results suggest that knowledge of the fine‐scale GS SST gradient in the weeks prior to the arrival of a TC might potentially provide additional information regarding the likelihood of that system completing ET. |
format |
Article in Journal/Newspaper |
author |
Evan Jones Rhys Parfitt Allison A. Wing Robert Hart |
author_facet |
Evan Jones Rhys Parfitt Allison A. Wing Robert Hart |
author_sort |
Evan Jones |
title |
Gulf Stream Sea Surface Temperature Anomalies Associated With the Extratropical Transition of North Atlantic Tropical Cyclones |
title_short |
Gulf Stream Sea Surface Temperature Anomalies Associated With the Extratropical Transition of North Atlantic Tropical Cyclones |
title_full |
Gulf Stream Sea Surface Temperature Anomalies Associated With the Extratropical Transition of North Atlantic Tropical Cyclones |
title_fullStr |
Gulf Stream Sea Surface Temperature Anomalies Associated With the Extratropical Transition of North Atlantic Tropical Cyclones |
title_full_unstemmed |
Gulf Stream Sea Surface Temperature Anomalies Associated With the Extratropical Transition of North Atlantic Tropical Cyclones |
title_sort |
gulf stream sea surface temperature anomalies associated with the extratropical transition of north atlantic tropical cyclones |
publisher |
Wiley |
publishDate |
2023 |
url |
https://doi.org/10.1029/2023GL102904 https://doaj.org/article/ec0fa163563945928636efc805e9f06b |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Geophysical Research Letters, Vol 50, Iss 16, Pp n/a-n/a (2023) |
op_relation |
https://doi.org/10.1029/2023GL102904 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2023GL102904 https://doaj.org/article/ec0fa163563945928636efc805e9f06b |
op_doi |
https://doi.org/10.1029/2023GL102904 |
container_title |
Geophysical Research Letters |
container_volume |
50 |
container_issue |
16 |
_version_ |
1810459979833933824 |