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Bayesian testing for synchrony of events in glacial proxy archives
Stockholm University, Faculty of Science, Department of Geology and Geochemistry.
Stockholm University, Faculty of Science, Department of Physical Geography and Quaternary Geology.
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2007 (English)In: European Geosciences Union, 2007, 2007, 00301- p.Conference paper, Published paper (Other academic)
Abstract [en]

Often chronological uncertainties are ignored in multi-site comparisons, resulting in

potentially wrong assumptions concerning (a)synchrony of events between archives.

We explore this problem in a Bayesian framework, constructing millions of plausible

wiggle-match age-models in order to quantify the chronological uncertainties within

and between proxy archives. Using these data we can now calculate the statistical

probability that events indeed coincided. The method is applied to a high-resolution

14C and OSL dated lake core from south-eastern France which largely predates the

IntCal04 14C calibration curve. Depending on the applied comparison curve, events

in this core appear synchronous or asynchronous with events in the NGRIP ice core.

Place, publisher, year, edition, pages
2007. 00301- p.
Identifiers
URN: urn:nbn:se:su:diva-21092OAI: oai:DiVA.org:su-21092DiVA: diva2:187618
Available from: 2008-10-21 Created: 2008-10-21Bibliographically approved

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Veres, DanielAmpel, Linda
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