Internal and external forcing of multidecadal Atlantic climate variability over the past 1,200 years
Internal and external forcing of multidecadal Atlantic climate variability over the past 1,200 years
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过去1200年大西洋数十年气候变化的内部和外部强迫
DOI:
10.1038/ngeo2962
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发表时间:
2017-05
影响因子:
18.3
通讯作者:
Eduardo Zorita
中科院分区:
文献类型:
--
作者:
Jianglin Wang;Bao Yang;Fredrik Charpentier Ljungqvist;Juerg Luterbacher;Timothy J. Osborn;Keith R. Briffa;Eduardo Zorita
The North Atlantic experiences climate variability on multidecadal scales, which is sometimes referred to as Atlantic.multidecadal variability. However, the relative contributions of external forcing such as changes in solar irradiance or volcanic.activity and internal dynamics to these variations are unclear. Here we provide evidence for persistent summer Atlantic.multidecadal variability from AD 800 to 2010 using a network of annually resolved terrestrial proxy records from the circum-.North Atlantic region. We find that large volcanic eruptions and solar irradiance minima induce cool phases of Atlantic.multidecadal variability and collectively explain about 30% of the variance in the reconstruction on timescales greater than.30 years.We are then able to isolate the internally generated component of Atlantic multidecadal variability, which we define.as the Atlantic multidecadal oscillation.We find that the Atlantic multidecadal oscillation is the largest contributor to Atlantic.multidecadal variability over the past 1,200 years.We also identify coherence between the Atlantic multidecadal oscillation.and Northern Hemisphere temperature variations, leading us to conclude that the apparent link betweenAtlantic multidecadal.variability and regional to hemispheric climate does not arise solely from a common response to external drivers, and may.instead reflect dynamic processes.
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影响因子:
16.6
作者:
Knudsen, Mads Faurschou;Jacobsen, Bo Holm;Seidenkrantz, Marit-Solveig;Olsen, Jesper
通讯作者:
Olsen, Jesper
影响因子:
4.3
作者:
Peng Zhang;H. Linderholm;B. Gunnarson;J. Björklund;Deliang L. Chen
通讯作者:
Peng Zhang;H. Linderholm;B. Gunnarson;J. Björklund;Deliang L. Chen
影响因子:
5.2
作者:
M. Mann;B. Steinman;S. Miller;L. Frankcombe;M. England;A. Cheung
通讯作者:
M. Mann;B. Steinman;S. Miller;L. Frankcombe;M. England;A. Cheung
DOI:
10.1002/jgrd.50229
发表时间:
2013-04
期刊:
Journal of Geophysical Research: Atmospheres
影响因子:
--
作者:
D. Zanchettin;O. Bothe;H. Graf;S. Lorenz;J. Luterbacher;C. Timmreck;J. Jungclaus
通讯作者:
D. Zanchettin;O. Bothe;H. Graf;S. Lorenz;J. Luterbacher;C. Timmreck;J. Jungclaus
影响因子:
18.3
作者:
M. Stoffel;M. Khodri;C. Corona;S. Guillet;Virginie Poulain;S. Bekki;J. Guiot;B. Luckman;C. Oppe
通讯作者:
M. Stoffel;M. Khodri;C. Corona;S. Guillet;Virginie Poulain;S. Bekki;J. Guiot;B. Luckman;C. Oppe