Articles | Volume 14, issue 12
Clim. Past, 14, 1851–1868, 2018
https://doi.org/10.5194/cp-14-1851-2018

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

Clim. Past, 14, 1851–1868, 2018
https://doi.org/10.5194/cp-14-1851-2018

Research article 30 Nov 2018

Research article | 30 Nov 2018

Sedproxy: a forward model for sediment-archived climate proxies

Andrew M. Dolman and Thomas Laepple

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

Anand, P., Elderfield, H., and Conte, M. H.: Calibration of Mg/Ca Thermometry in Planktonic Foraminifera from a Sediment Trap Time Series, Paleoceanography, 18, 1050, https://doi.org/10.1029/2002PA000846, 2003. a, b, c
Anderson, D. M.: Attenuation of Millennial-Scale Events by Bioturbation in Marine Sediments, Paleoceanography, 16, 352–357, 2001. a, b
Barker, S., Greaves, M., and Elderfield, H.: A Study of Cleaning Procedures Used for Foraminiferal Mg∕Ca Paleothermometry, Geochem. Geophy. Geosy., 4, 8407, https://doi.org/10.1029/2003GC000559, 2003. a
Barker, S., Cacho, I., Benway, H., and Tachikawa, K.: Planktonic Foraminiferal Mg∕Ca as a Proxy for Past Oceanic Temperatures: A Methodological Overview and Data Compilation for the Last Glacial Maximum, Quaternary Sci. Rev., 24, 821–834, https://doi.org/10.1016/j.quascirev.2004.07.016, 2005. a
Barker, S., Broecker, W., Clark, E., and Hajdas, I.: Radiocarbon Age Offsets of Foraminifera Resulting from Differential Dissolution and Fragmentation within the Sedimentary Bioturbated Zone, Paleoceanography, 22, PA2205, https://doi.org/10.1029/2006PA001354, 2007. a
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Short summary
Climate proxies from marine sediments provide an important record of past temperatures, but contain noise from many sources. These include mixing by burrowing organisms, seasonal and habitat biases, measurement error, and small sample size effects. We have created a forward model that simulates the creation of proxy records and provides it as a user-friendly R package. It allows multiple sources of uncertainty to be considered together when interpreting proxy climate records.