Evidence of coupling in ocean-atmosphere dynamics over the North Atlantic
Coupling between the ocean and the atmosphere is investigated in reanalysis data sets. Projecting the data sets onto a dynamically defined subspace allows one to isolate the dominant modes of variability of the coupled system. This coupled projection is then analyzed using multichannel singular spec...
Published in: | Geophysical Research Letters |
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Online Access: | https://www.vliz.be/imisdocs/publications/302713.pdf |
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ftvliz:oai:oma.vliz.be:285272 2023-05-15T17:31:47+02:00 Evidence of coupling in ocean-atmosphere dynamics over the North Atlantic Vannitsem, S. Ghil, M. 2017 application/pdf https://www.vliz.be/imisdocs/publications/302713.pdf en eng info:eu-repo/semantics/altIdentifier/wos/000396411100048 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1002/2016GL072229 https://www.vliz.be/imisdocs/publications/302713.pdf info:eu-repo/semantics/openAccess %3Ci%3EGeophys.+Res.+Lett.+44%284%29%3C%2Fi%3E%3A+2016-2026.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1002%2F2016GL072229%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1002%2F2016GL072229%3C%2Fa%3E info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2017 ftvliz https://doi.org/10.1002/2016GL072229 2022-05-01T10:49:34Z Coupling between the ocean and the atmosphere is investigated in reanalysis data sets. Projecting the data sets onto a dynamically defined subspace allows one to isolate the dominant modes of variability of the coupled system. This coupled projection is then analyzed using multichannel singular spectrum analysis. The results suggest that a dominant low-frequency signal with a 25-30 year period already mentioned in the literature is a common mode of variability of the atmosphere and the ocean. A new score for evaluating the internal nature of the common variability is then introduced, and it confirms the presence of coupled dynamics in the ocean-atmosphere system that impacts the atmosphere at large scale. The physical nature of this coupled dynamics is then discussed. Article in Journal/Newspaper North Atlantic Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Geophysical Research Letters |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
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ftvliz |
language |
English |
description |
Coupling between the ocean and the atmosphere is investigated in reanalysis data sets. Projecting the data sets onto a dynamically defined subspace allows one to isolate the dominant modes of variability of the coupled system. This coupled projection is then analyzed using multichannel singular spectrum analysis. The results suggest that a dominant low-frequency signal with a 25-30 year period already mentioned in the literature is a common mode of variability of the atmosphere and the ocean. A new score for evaluating the internal nature of the common variability is then introduced, and it confirms the presence of coupled dynamics in the ocean-atmosphere system that impacts the atmosphere at large scale. The physical nature of this coupled dynamics is then discussed. |
format |
Article in Journal/Newspaper |
author |
Vannitsem, S. Ghil, M. |
spellingShingle |
Vannitsem, S. Ghil, M. Evidence of coupling in ocean-atmosphere dynamics over the North Atlantic |
author_facet |
Vannitsem, S. Ghil, M. |
author_sort |
Vannitsem, S. |
title |
Evidence of coupling in ocean-atmosphere dynamics over the North Atlantic |
title_short |
Evidence of coupling in ocean-atmosphere dynamics over the North Atlantic |
title_full |
Evidence of coupling in ocean-atmosphere dynamics over the North Atlantic |
title_fullStr |
Evidence of coupling in ocean-atmosphere dynamics over the North Atlantic |
title_full_unstemmed |
Evidence of coupling in ocean-atmosphere dynamics over the North Atlantic |
title_sort |
evidence of coupling in ocean-atmosphere dynamics over the north atlantic |
publishDate |
2017 |
url |
https://www.vliz.be/imisdocs/publications/302713.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
%3Ci%3EGeophys.+Res.+Lett.+44%284%29%3C%2Fi%3E%3A+2016-2026.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.1002%2F2016GL072229%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.1002%2F2016GL072229%3C%2Fa%3E |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/000396411100048 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.1002/2016GL072229 https://www.vliz.be/imisdocs/publications/302713.pdf |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2016GL072229 |
container_title |
Geophysical Research Letters |
_version_ |
1766129543706312704 |