Articles | Volume 15, issue 2
Clim. Past, 15, 521–537, 2019
https://doi.org/10.5194/cp-15-521-2019

Special issue: Paleoclimate data synthesis and analysis of associated uncertainty...

Clim. Past, 15, 521–537, 2019
https://doi.org/10.5194/cp-15-521-2019

Research article 26 Mar 2019

Research article | 26 Mar 2019

Empirical estimate of the signal content of Holocene temperature proxy records

Maria Reschke et al.

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Subject: Proxy Use-Development-Validation | Archive: Marine Archives | Timescale: Holocene
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Cited articles

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Bakker, P., Clark, P. U., Golledge, N. R., Schmittner, A., and Weber, M. E.: Centennial-scale Holocene climate variations amplified by Antarctic Ice Sheet discharge, Nature, 541, 72–76, https://doi.org/10.1038/nature20582, 2017. 
Bard, E.: Paleoceanographic implications of the difference in deep-sea sediment mixing between large and fine particles, Paleoceanography, 16, 235–239, 2001. 
Berger, W. H. and Heath, G. R.: Vertical mixing in pelagic sediments, J. Mar. Res., 26, 134–143, 1968. 
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Short summary
We empirically estimate signal-to-noise ratios of temperature proxy records used in global compilations of the middle to late Holocene by comparing the spatial correlation structure of proxy records and climate model simulations accounting for noise and time uncertainty. We find that low signal contents of the proxy records or, alternatively, more localised climate variations recorded by proxies than suggested by current model simulations suggest caution when interpreting multi-proxy datasets.