globalchange  > 过去全球变化的重建
DOI: 10.1007/s00382-011-1180-4
Scopus记录号: 2-s2.0-84862981075
论文题名:
Dynamics of decadal variability in the Atlantic subpolar gyre: A stochastically forced oscillator
作者: Born A.; Mignot J.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2012
卷: 39, 期:2017-01-02
起始页码: 461
结束页码: 474
语种: 英语
英文关键词: Decadal variability ; North Atlantic ; Ocean circulation ; Subpolar gyre
英文摘要: Internal variability of the Atlantic subpolar gyre is investigated in a 600 years control simulation of a comprehensive coupled climate model. The subpolar gyre shows irregular oscillations of decadal time scale with most spectral power between 15 and 20 years. Positive and negative feedback mechanisms act successively on the circulation leading to an internal oscillation. This involves periodically enhanced deep convection in the subpolar gyre center and intermittently enhanced air-sea thermal coupling. As a result, anomalies of the large-scale atmospheric circulation can be transferred to the ocean on the ocean's intrinsic time scale, exciting the oscillator stochastically. A detailed understanding of oscillatory mechanisms of the ocean and their sensitivity to atmospheric forcing holds considerable potential for decadal predictions as well as for the interpretation of proxy data records. © 2011 Springer-Verlag.
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被引频次[WOS]:23   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/55257
Appears in Collections:过去全球变化的重建

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作者单位: Climate and Environmental Physics, Physics Institute, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland; Oeschger Centre for Climate Change Research, Bern, Switzerland; Bjerknes Centre for Climate Research, Bergen, Norway; Geophysical Institute, University of Bergen, Bergen, Norway; Laboratoire d'océanographie et du climat: experimentation et approches numériques, IPSL/UPMC/CNRS/IRD/MNHN, Paris, France

Recommended Citation:
Born A.,Mignot J.. Dynamics of decadal variability in the Atlantic subpolar gyre: A stochastically forced oscillator[J]. Climate Dynamics,2012-01-01,39(2017-01-02)
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