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Intrinsic Pink-Nois...
Intrinsic Pink-Noise Multidecadal Global Climate Dynamics Mode
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- Moon, Woosok (författare)
- Stockholms universitet,Matematiska institutionen,Nordiska institutet för teoretisk fysik (Nordita),Stockholm Univ, Dept Math, S-10691 Stockholm, Sweden.;Nordita SU
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- Agarwal, Sahil (författare)
- Yale Univ, New Haven, CT 06520 USA.
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- Wettlaufer, John S. (författare)
- Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Stockholm Univ, S-10691 Stockholm, Sweden.;Yale Univ, New Haven, CT 06520 USA.;Univ Oxford, Math Inst, Oxford OX2 6GG, England.,Nordiska institutet för teoretisk fysik (Nordita),Yale University, USA; University of Oxford, United Kingdom
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(creator_code:org_t)
- American Physical Society, 2018
- 2018
- Engelska.
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Ingår i: Physical Review Letters. - : American Physical Society. - 0031-9007 .- 1079-7114. ; 121:10
- Relaterad länk:
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Understanding multidecadal variability is an essential goal of climate dynamics. For example, the recent phenomenon referred to as the "global warming hiatus" may reflect a coupling to an intrinsic, preindustrial, multidecadal variability process. Here, using a multifractal time-series method, we demonstrate that 42 data sets of 79 proxies with global coverage exhibit pink-noise characteristics on multidecadal timescales. To quantify the persistence of this behavior, we examine high-resolution ice core and speleothem data to find pink noise in both pre- and postindustrial periods. We examine the spatial structure with an empirical orthogonal function analysis of the monthly averaged surface temperature from 1901 to 2012. The first mode clearly shows the distribution of ocean heat flux sinks located in the eastern Pacific and the Southern Ocean and has pink-noise characteristics on a multidecadal timescale. We hypothesize that this pink-noise multidecadal spatial mode may resonate with externally driven greenhouse gas forcing, driving large-scale climate processes.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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