COnstructing Proxy-Record Age models (COPRA)

Breitenbach, S.F.M.; Rehfeld, K.; Goswami, B.; Baldini, J.U.L.; Ridley, H.E.; Kennett, D.; Prufer, K.; Aquino, V.V.; Asmerom, Y.; Polyak, V.J.; Cheng, H.; Kurths, J.; Marwan, N.

doi:10.5194/cp-8-1765-2012

COnstructing Proxy-Record Age models (COPRA)

Breitenbach, S.F.M.; Rehfeld, K.; Goswami, B.; Baldini, J.U.L.; Ridley, H.E.; Kennett, D.; Prufer, K.; Aquino, V.V.; Asmerom, Y.; Polyak, V.J.; Cheng, H.; Kurths, J.; Marwan, N.

Authors

S.F.M. Breitenbach

K. Rehfeld

B. Goswami

Professor James Baldini james.baldini@durham.ac.uk
Professor

H.E. Ridley

D. Kennett

K. Prufer

V.V. Aquino

Y. Asmerom

V.J. Polyak

H. Cheng

J. Kurths

N. Marwan

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.

Citation

Breitenbach, S., Rehfeld, K., Goswami, B., Baldini, J., Ridley, H., Kennett, D., …Marwan, N. (2012). COnstructing Proxy-Record Age models (COPRA). Climate of the Past, 8(5), 1765-1779. https://doi.org/10.5194/cp-8-1765-2012

Journal Article Type	Article
Acceptance Date	Oct 6, 2012
Publication Date	Oct 31, 2012
Deposit Date	Jul 30, 2012
Publicly Available Date	Sep 8, 2015
Journal	Climate of the Past
Print ISSN	1814-9324
Publisher	European Geosciences Union
Peer Reviewed	Peer Reviewed
Volume	8
Issue	5
Pages	1765-1779
DOI	https://doi.org/10.5194/cp-8-1765-2012