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|a A stratospheric connection to Atlantic climate variability |h [electronic resource] |y French. |
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|a [S.l.] : |b Macmillan Publishers Limited, |c 2012-09-23. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a The stratosphere is connected to tropospheric weather and
climate. In particular, extreme stratospheric circulation events
are known to exert a dynamical feedback on the troposphere1.
However, it is unclear whether the state of the stratosphere
also affects the ocean and its circulation. A co-variability of
decadal stratospheric flow variations and conditions in the
North Atlantic Ocean has been suggested, but such findings
are based on short simulations with only one climate model2.
Here we assess ocean reanalysis data and find that, over
the previous 30 years, the stratosphere and the Atlantic
thermohaline circulation experienced low-frequency variations
that were similar to each other. Using climate models,
we demonstrate that this similarity is consistent with the
hypothesis that variations in the sequence of stratospheric
circulation anomalies, combined with the persistence of
individual anomalies, significantly affect the North Atlantic
Ocean. Our analyses identify a previously unknown source for
decadal climate variability and suggest that simulations of
deep layers of the atmosphere and the ocean are needed for
realistic predictions of climate. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15050352/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/05/03/52/00001/FI15050352_thm.jpg |
