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COnstructing Proxy-Record Age models (COPRA).

Breitenbach, S.F.M. and Rehfeld, K. and Goswami, B. and Baldini, J.U.L. and Ridley, H.E. and Kennett, D. and Prufer, K. and Aquino, V.V. and Asmerom, Y. and Polyak, V.J. and Cheng, H. and Kurths, J. and Marwan, N. (2012) 'COnstructing Proxy-Record Age models (COPRA).', Climate of the past., 8 (5). pp. 1765-1779.

Abstract

Reliable age models are fundamental for any palaeoclimate reconstruction. Available interpolation procedures between age control points are often inadequately reported, and very few translate age uncertainties to proxy uncertainties. Most available modeling algorithms do not allow incorporation of layer counted intervals to improve the confidence limits of the age model in question. We present a framework that allows detection and interactive handling of age reversals and hiatuses, depth-age modeling, and proxy-record reconstruction. Monte Carlo simulation and a translation procedure are used to assign a precise time scale to climate proxies and to translate dating uncertainties to uncertainties in the proxy values. The presented framework allows integration of incremental relative dating information to improve the final age model. The free software package COPRA1.0 facilitates easy interactive usage.

Item Type:Article
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Available under License - Creative Commons Attribution.
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Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.5194/cp-8-1765-2012
Publisher statement:© Author(s) 2012. This work is distributed under the Creative Commons Attribution 3.0 License.
Date accepted:06 October 2012
Date deposited:08 September 2015
Date of first online publication:October 2012
Date first made open access:No date available

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