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dc.contributor.authorGómez Portugal Aguilar, Delil
dc.contributor.authorLitton, Cliff D.
dc.contributor.authorO'Hagan, Anthony
dc.date.accessioned2021-02-11T21:32:34Z
dc.date.available2021-02-11T21:32:34Z
dc.date.issued2002-01-01
dc.identifier.citationGómez Portugal Aguilar, D., Litton, C. D., & O'Hagan, A. (2002). Novel statistical model for a piece-wise linear radiocarbon calibration curve. Radiocarbon, 44(1), 195-212.
dc.identifier.issn0033-8222
dc.identifier.doi10.1017/S0033822200064791
dc.identifier.urihttp://hdl.handle.net/10150/654548
dc.description.abstractThe process of calibrating radiocarbon determinations onto the calendar scale requires the setting of a specific statistical model for the calibration curve. This model specification will bear fundamental importance for the resulting inference regarding the parameter of interest—namely, in general, the calendar age associated to the sample that has been 14C-dated. Traditionally, the 14C calibration curve has been modelled simply as the piece-wise linear curve joining the (internationally agreed) high-precision calibration data points; or, less frequently, by proposing spline functions in order to obtain a smoother curve. We present a model for the 14C calibration curve which, based on specific characteristics of the dating method, yields a piece-wise linear curve, but one which rather than interpolating the data points, smooths them. We show that with this specific model if a piece-wise linear curve is desired, an underlying random walk model is implied as covariance structure (and vice versa). Furthermore, by making use of all the information provided by the calibration data in a comprehensive way, we achieve an improvement over current models by getting more realistic variance values for the calibration curve.
dc.language.isoen
dc.publisherDepartment of Geosciences, The University of Arizona
dc.relation.urlhttp://radiocarbon.webhost.uits.arizona.edu/
dc.rightsCopyright © by the Arizona Board of Regents on behalf of the University of Arizona. All rights reserved.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.titleNovel Statistical Model for a Piece-Wise Linear Radiocarbon Calibration Curve
dc.typeArticle
dc.typetext
dc.identifier.journalRadiocarbon
dc.description.collectioninformationThe Radiocarbon archives are made available by Radiocarbon and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform February 2021
dc.source.volume44
dc.source.issue1
dc.source.beginpage195
dc.source.endpage212
refterms.dateFOA2021-02-11T21:32:34Z


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