| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
A recent decline in North Atlantic subtropical mode water formation
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| Autores: |
Stevens, Samuel W.
Johnson, Rodney J.
Maze, Guillaume
Bates, Nicholas R.
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| Data: |
2020-04
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| Ano: |
2020
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| Resumo: |
As a manifestation of mixing dynamics in the upper ocean, interannual and decadal variability of subtropical mode water (STMW) properties in the North Atlantic Ocean provides a valuable insight into ocean–atmosphere interaction in a changing climate. Here, we use hydrographic data from the Bermuda Atlantic Time-Series Study and Hydrostation S sites near Bermuda, as well as various ocean reanalysis products, to evaluate the modern variability of STMW properties. Our study finds an 86–93% loss of STMW thickness at these sites between 2010 and 2018 and a comparable loss throughout the western subtropical gyre, culminating in the weakest STMW pentad on record. We correlate this decline with a reduction in the annual outcropping volume and northward excursions of the formation region, suggesting a gyre-wide signal of weakening STMW generation. The outcropping volume of STMW is anti-correlated with surface ocean heat content, foreshadowing future STMW loss in the face of continued warming.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00618/72973/72146.pdf
https://archimer.ifremer.fr/doc/00618/72973/77554.pdf
DOI:10.1038/s41558-020-0722-3
https://archimer.ifremer.fr/doc/00618/72973/
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| Editor: |
Springer Science and Business Media LLC
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| Formato: |
application/pdf
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| Fonte: |
Nature Climate Change (1758-678X) (Springer Science and Business Media LLC), 2020-04 , Vol. 10 , N. 4 , P. 335–341
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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