COnstructing Proxy Records from 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. J. and Prufer, K. M. and Aquino, V. V. and Asmerom, Y. and Polyak, V. J. and Cheng, H. and Kurths, J. and Marwan, N. (2012) COnstructing Proxy Records from Age models (COPRA). Climate of the past, 8 (5). pp. 1765-1779. ISSN 1814-9340 DOI 10.5194/cp-8-1765-2012

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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
Uncontrolled Keywords: NILAREP;
Subjects: 01 - Climate Change and Earth-Ocean Atmosphere Systems
Divisions: 01 - Climate Change and Earth-Ocean Atmosphere Systems
07 - Gold Open Access
Journal or Publication Title: Climate of the past
Volume: 8
Page Range: pp. 1765-1779
Identification Number: 10.5194/cp-8-1765-2012
Depositing User: Sarah Humbert
Date Deposited: 20 Aug 2015 14:47
Last Modified: 20 Aug 2015 14:47
URI: http://eprints.esc.cam.ac.uk/id/eprint/3471

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