globalchange  > 气候变化事实与影响
DOI: 10.1175/JCLI-D-15-0727.1
Scopus记录号: 2-s2.0-84964367215
论文题名:
Dynamical attribution of recent variability in Atlantic overturning
作者: Pillar H.R.; Heimbach P.; Johnson H.L.; Marshall D.P.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2016
卷: 29, 期:9
起始页码: 3339
结束页码: 3352
语种: 英语
Scopus关键词: Atmospheric thermodynamics ; Climate change ; Dynamics ; Heat flux ; Time series ; Atmosphere-ocean interactions ; Mass fluxes/transport ; Meridional overturning circulations ; Ocean circulation ; Ocean dynamics ; Oceanography ; air-sea interaction ; buoyancy forcing ; heat flux ; mass transport ; meridional circulation ; overturn ; wind forcing ; Atlantic Ocean
英文摘要: Attributing observed variability of the Atlantic meridional overturning circulation (AMOC) to past changes in surface forcing is challenging but essential for detecting any influence of anthropogenic forcing and reducing uncertainty in future climate predictions. Here, quantitative estimates of separate contributions from wind and buoyancy forcing to AMOC variations at 25°N are obtained. These estimates are achieved by projecting observed atmospheric anomalies onto model-based dynamical patterns of AMOC sensitivity to surface wind, thermal, and freshwater forcing over the preceding 15 years. Local wind forcing is shown to dominate AMOC variability on short time scales, whereas subpolar heat fluxes dominate on decadal time scales. The reconstructed transport time series successfully reproduces most of the interannual variability observed by RAPID-MOCHA. However, the apparent decadal trend in the RAPID-MOCHA time series is not captured, requiring improved model representation of ocean adjustment to subpolar heat fluxes over at least the past two decades and highlighting the importance of sustained monitoring of the high-latitude North Atlantic. © 2016 American Meteorological Society.
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被引频次[WOS]:47   [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/49957
Appears in Collections:气候变化事实与影响

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作者单位: Department of Earth Sciences, University of Oxford, Oxford, United Kingdom; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, United States; Department of Physics, University of Oxford, Oxford, United Kingdom; Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark; Institute for Computational Engineering and Sciences, The University of Texas at Austin, Austin, TX, United States; Jackson School of Geosciences, The University of Texas at Austin, Austin, TX, United States

Recommended Citation:
Pillar H.R.,Heimbach P.,Johnson H.L.,et al. Dynamical attribution of recent variability in Atlantic overturning[J]. Journal of Climate,2016-01-01,29(9)
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