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Earth System Dynamics An interactive open-access journal of the European Geosciences Union
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Volume 7, issue 1
Earth Syst. Dynam., 7, 133–150, 2016
https://doi.org/10.5194/esd-7-133-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Earth Syst. Dynam., 7, 133–150, 2016
https://doi.org/10.5194/esd-7-133-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 23 Feb 2016

Research article | 23 Feb 2016

Scaling regimes and linear/nonlinear responses of last millennium climate to volcanic and solar forcings

Shaun Lovejoy and Costas Varotsos
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Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Shaun Lovejoy on behalf of the Authors (12 Jan 2016)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (13 Jan 2016) by Christian Franzke
RR by Kristoffer Rypdal (21 Jan 2016)
RR by Anonymous Referee #2 (24 Jan 2016)
ED: Publish subject to minor revisions (review by Editor) (24 Jan 2016) by Christian Franzke
AR by Shaun Lovejoy on behalf of the Authors (01 Feb 2016)  Author's response    Manuscript
ED: Publish as is (04 Feb 2016) by Christian Franzke
Publications Copernicus
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Short summary
We compare the statistical properties of solar, volcanic and combined forcings over the range from 1 to 1000 years to see over which scale ranges they additively combine, a prediction of linear response. The main findings are (a) that the variability in the Zebiac–Cane model and GCMs are too weak at centennial and longer scales; (b) for longer than ≈ 50 years, the forcings combine subadditively; and (c) at shorter scales, strong (intermittency, e.g. volcanic) forcings are nonlinear.
We compare the statistical properties of solar, volcanic and combined forcings over the range...
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