Atmospheric Rivers Contribute to Summer Surface Buoyancy Forcing in the Atlantic Sector of the Southern Ocean
Abstract Atmospheric rivers (ARs) dominate moisture transport globally; however, it is unknown what impact ARs have on surface ocean buoyancy. This study explores the surface buoyancy gained by ARs using high‐resolution surface observations from a Wave Glider deployed in the subpolar Southern Ocean...
Published in: | Geophysical Research Letters |
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ftdoajarticles:oai:doaj.org/article:4882c2762b914a159a133408fa9fcda9 2024-09-09T20:09:28+00:00 Atmospheric Rivers Contribute to Summer Surface Buoyancy Forcing in the Atlantic Sector of the Southern Ocean Johan M. Edholm Sebastiaan Swart Marcel D. Plessis Sarah‐Anne Nicholson 2022-09-01T00:00:00Z https://doi.org/10.1029/2022GL100149 https://doaj.org/article/4882c2762b914a159a133408fa9fcda9 EN eng Wiley https://doi.org/10.1029/2022GL100149 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2022GL100149 https://doaj.org/article/4882c2762b914a159a133408fa9fcda9 Geophysical Research Letters, Vol 49, Iss 17, Pp n/a-n/a (2022) atmospheric rivers Southern Ocean buoyancy flux precipitation air‐sea interactions Geophysics. Cosmic physics QC801-809 article 2022 ftdoajarticles https://doi.org/10.1029/2022GL100149 2024-08-05T17:49:10Z Abstract Atmospheric rivers (ARs) dominate moisture transport globally; however, it is unknown what impact ARs have on surface ocean buoyancy. This study explores the surface buoyancy gained by ARs using high‐resolution surface observations from a Wave Glider deployed in the subpolar Southern Ocean (54°S, 0°E) between 19 December 2018 and 12 February 2019 (55 days). When ARs combine with storms, the associated precipitation is significantly enhanced (189%). In addition, the daily accumulation of AR‐induced precipitation provides a buoyancy gain to the surface ocean equivalent to warming by surface heat fluxes. Over the 55 days, ARs accounted for 47% of the total precipitation equating to 10% of the summer surface ocean buoyancy gain. This study indicates that ARs play an important role in the summer precipitation over the subpolar Southern Ocean and that they can alter the upper‐ocean buoyancy budget from synoptic to seasonal timescales. Article in Journal/Newspaper Southern Ocean Directory of Open Access Journals: DOAJ Articles Southern Ocean Geophysical Research Letters 49 17 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
atmospheric rivers Southern Ocean buoyancy flux precipitation air‐sea interactions Geophysics. Cosmic physics QC801-809 |
spellingShingle |
atmospheric rivers Southern Ocean buoyancy flux precipitation air‐sea interactions Geophysics. Cosmic physics QC801-809 Johan M. Edholm Sebastiaan Swart Marcel D. Plessis Sarah‐Anne Nicholson Atmospheric Rivers Contribute to Summer Surface Buoyancy Forcing in the Atlantic Sector of the Southern Ocean |
topic_facet |
atmospheric rivers Southern Ocean buoyancy flux precipitation air‐sea interactions Geophysics. Cosmic physics QC801-809 |
description |
Abstract Atmospheric rivers (ARs) dominate moisture transport globally; however, it is unknown what impact ARs have on surface ocean buoyancy. This study explores the surface buoyancy gained by ARs using high‐resolution surface observations from a Wave Glider deployed in the subpolar Southern Ocean (54°S, 0°E) between 19 December 2018 and 12 February 2019 (55 days). When ARs combine with storms, the associated precipitation is significantly enhanced (189%). In addition, the daily accumulation of AR‐induced precipitation provides a buoyancy gain to the surface ocean equivalent to warming by surface heat fluxes. Over the 55 days, ARs accounted for 47% of the total precipitation equating to 10% of the summer surface ocean buoyancy gain. This study indicates that ARs play an important role in the summer precipitation over the subpolar Southern Ocean and that they can alter the upper‐ocean buoyancy budget from synoptic to seasonal timescales. |
format |
Article in Journal/Newspaper |
author |
Johan M. Edholm Sebastiaan Swart Marcel D. Plessis Sarah‐Anne Nicholson |
author_facet |
Johan M. Edholm Sebastiaan Swart Marcel D. Plessis Sarah‐Anne Nicholson |
author_sort |
Johan M. Edholm |
title |
Atmospheric Rivers Contribute to Summer Surface Buoyancy Forcing in the Atlantic Sector of the Southern Ocean |
title_short |
Atmospheric Rivers Contribute to Summer Surface Buoyancy Forcing in the Atlantic Sector of the Southern Ocean |
title_full |
Atmospheric Rivers Contribute to Summer Surface Buoyancy Forcing in the Atlantic Sector of the Southern Ocean |
title_fullStr |
Atmospheric Rivers Contribute to Summer Surface Buoyancy Forcing in the Atlantic Sector of the Southern Ocean |
title_full_unstemmed |
Atmospheric Rivers Contribute to Summer Surface Buoyancy Forcing in the Atlantic Sector of the Southern Ocean |
title_sort |
atmospheric rivers contribute to summer surface buoyancy forcing in the atlantic sector of the southern ocean |
publisher |
Wiley |
publishDate |
2022 |
url |
https://doi.org/10.1029/2022GL100149 https://doaj.org/article/4882c2762b914a159a133408fa9fcda9 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Geophysical Research Letters, Vol 49, Iss 17, Pp n/a-n/a (2022) |
op_relation |
https://doi.org/10.1029/2022GL100149 https://doaj.org/toc/0094-8276 https://doaj.org/toc/1944-8007 1944-8007 0094-8276 doi:10.1029/2022GL100149 https://doaj.org/article/4882c2762b914a159a133408fa9fcda9 |
op_doi |
https://doi.org/10.1029/2022GL100149 |
container_title |
Geophysical Research Letters |
container_volume |
49 |
container_issue |
17 |
_version_ |
1809943632640212992 |