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Bayesian testing for synchrony of events in glacial proxy archives
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för geologi och geokemi.
Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för naturgeografi och kvartärgeologi (INK).
Vise andre og tillknytning
2007 (engelsk)Inngår i: European Geosciences Union, 2007, 2007, s. 00301-Konferansepaper, Publicerat paper (Annet vitenskapelig)
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.

sted, utgiver, år, opplag, sider
2007. s. 00301-
Identifikatorer
URN: urn:nbn:se:su:diva-21092OAI: oai:DiVA.org:su-21092DiVA, id: diva2:187618
Tilgjengelig fra: 2008-10-21 Laget: 2008-10-21bibliografisk kontrollert

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http://www.cosis.net/abstracts/EGU2007/00301/EGU2007-J-00301.pdf

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