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Cited by 1,073

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Persistent Positive North Atlantic Oscillation Mode Dominated the Medieval Climate Anomaly

Trouet, Valérie, Esper, Jan, Graham, Nicholas E., Baker, Andy, Scourse, James D., Frank, David C.·2009·Science

Abstract

The Medieval Climate Anomaly (MCA) was the most recent pre-industrial era warm interval of European climate, yet its driving mechanisms remain uncertain. We present here a 947-year-long multidecadal North Atlantic Oscillation (NAO) reconstruction and find a persistent positive NAO during the MCA. Supplementary reconstructions based on climate model results and proxy data indicate a clear shift to weaker NAO conditions into the Little Ice Age (LIA). Globally distributed proxy data suggest that this NAO shift is one aspect of a global MCA-LIA climate transition that probably was coupled to prevailing La Niña–like conditions amplified by an intensified Atlantic meridional overturning circulation during the MCA.

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Crossref · 10.1126/science.1166349

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Metadata

Authors
Trouet, V., Esper, J., Graham, N. E., Baker, A., Scourse, J. D., & Frank, D. C.
Venue
Science
Published
2009-04-03
Volume
324
Issue
5923
Pages
78-80
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2034795620
Cited by
1,073
References
1
FWCI
49.22
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Persistent Positive North Atlantic Oscillation Mode Dominated the Medieval Climate Anomaly. https://app.cochat.ai/papers/10.1126/science.1166349
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Trouet, V., Esper, J., Graham, N. E., Baker, A., Scourse, J. D., & Frank, D. C. (2009). Persistent Positive North Atlantic Oscillation Mode Dominated the Medieval Climate Anomaly. Science. https://doi.org/10.1126/science.1166349

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