Articles | Volume 12, issue 1
Research article
15 Jan 2016
Research article |  | 15 Jan 2016

Inferring climate variability from nonlinear proxies: application to palaeo-ENSO studies

J. Emile-Geay and M. Tingley


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (review by Editor) (29 Nov 2015) by Volker Rath
AR by Julien Emile-Geay on behalf of the Authors (30 Nov 2015)  Author's response    Manuscript
ED: Publish as is (30 Nov 2015) by Volker Rath
Short summary
Ignoring nonlinearity in palaeoclimate records (e.g. continental run-off proxies) runs the risk of severely overstating changes in climate variability. Even with the correct model and parameters, some information is irretrievably lost by such proxies. However, we find that a simple empirical transform can do much to improve the situation, and makes them amenable to classical analyses. Doing so on two palaeo-ENSO records markedly changes some of the quantitative inferences made from such records.