Differing Drivers Of Atlantic Variability On Quasi- And Multi-Decadal Timescales
The North Atlantic is notable for large decadal variability in sea surface temperature (SST) manifested as Atlantic Multi-decadal Variability (AMV). Whether the AMV is driven by external atmospheric or internal oceanic influences is an oft-disputed point. Long time series of atmospheric and ocean va...
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ftdatacite:10.5281/zenodo.1284353 2023-05-15T17:29:06+02:00 Differing Drivers Of Atlantic Variability On Quasi- And Multi-Decadal Timescales McCarthy, Gerard D 2018 https://dx.doi.org/10.5281/zenodo.1284353 https://zenodo.org/record/1284353 unknown Zenodo https://dx.doi.org/10.5281/zenodo.1284352 Open Access Creative Commons Attribution 4.0 https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess CC-BY Text Presentation article-journal ScholarlyArticle 2018 ftdatacite https://doi.org/10.5281/zenodo.1284353 https://doi.org/10.5281/zenodo.1284352 2021-11-05T12:55:41Z The North Atlantic is notable for large decadal variability in sea surface temperature (SST) manifested as Atlantic Multi-decadal Variability (AMV). Whether the AMV is driven by external atmospheric or internal oceanic influences is an oft-disputed point. Long time series of atmospheric and ocean variables, in particular long timeseries of Gulf Stream position, reveal differing drivers of SST variability on quasi- and multi-decadal timescales. On quasi-decadal timescales an oscillatory signal identified in the North Atlantic Oscillation controls SST evolution directly via air-sea heat uxes. However, on multi-decadal timescales this relationship with SST changes, while remaining consistent in phase. and resonant in amplitude with Gulf Stream position. A recent reversal of the long term positive trend in Gulf Stream position coincides with a weakening and broadening in the Gulf Stream Extension indicating the onset of an AMV decline. Conference Object North Atlantic North Atlantic oscillation DataCite Metadata Store (German National Library of Science and Technology) |
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The North Atlantic is notable for large decadal variability in sea surface temperature (SST) manifested as Atlantic Multi-decadal Variability (AMV). Whether the AMV is driven by external atmospheric or internal oceanic influences is an oft-disputed point. Long time series of atmospheric and ocean variables, in particular long timeseries of Gulf Stream position, reveal differing drivers of SST variability on quasi- and multi-decadal timescales. On quasi-decadal timescales an oscillatory signal identified in the North Atlantic Oscillation controls SST evolution directly via air-sea heat uxes. However, on multi-decadal timescales this relationship with SST changes, while remaining consistent in phase. and resonant in amplitude with Gulf Stream position. A recent reversal of the long term positive trend in Gulf Stream position coincides with a weakening and broadening in the Gulf Stream Extension indicating the onset of an AMV decline. |
format |
Conference Object |
author |
McCarthy, Gerard D |
spellingShingle |
McCarthy, Gerard D Differing Drivers Of Atlantic Variability On Quasi- And Multi-Decadal Timescales |
author_facet |
McCarthy, Gerard D |
author_sort |
McCarthy, Gerard D |
title |
Differing Drivers Of Atlantic Variability On Quasi- And Multi-Decadal Timescales |
title_short |
Differing Drivers Of Atlantic Variability On Quasi- And Multi-Decadal Timescales |
title_full |
Differing Drivers Of Atlantic Variability On Quasi- And Multi-Decadal Timescales |
title_fullStr |
Differing Drivers Of Atlantic Variability On Quasi- And Multi-Decadal Timescales |
title_full_unstemmed |
Differing Drivers Of Atlantic Variability On Quasi- And Multi-Decadal Timescales |
title_sort |
differing drivers of atlantic variability on quasi- and multi-decadal timescales |
publisher |
Zenodo |
publishDate |
2018 |
url |
https://dx.doi.org/10.5281/zenodo.1284353 https://zenodo.org/record/1284353 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
https://dx.doi.org/10.5281/zenodo.1284352 |
op_rights |
Open Access Creative Commons Attribution 4.0 https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5281/zenodo.1284353 https://doi.org/10.5281/zenodo.1284352 |
_version_ |
1766122699209310208 |