The Influence of Calibration Curve Construction and Composition on the Accuracy and Precision of Radiocarbon Wiggle-Matching of Tree Rings, Illustrated by Southern Hemisphere Atmospheric Data Sets from AD 1500–1950
ABSTRACT This research investigates two factors influencing the ability of tree-ring data to provide accurate 14 C calibration information: the fitness and rigor of the statistical model used to combine the data into a curve; and the accuracy, precision and reproducibility of the component 14 C data...
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Language: | English |
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Cambridge University Press (CUP)
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Online Access: | http://dx.doi.org/10.1017/rdc.2019.42 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033822219000420 |
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crcambridgeupr:10.1017/rdc.2019.42 2024-06-23T07:56:56+00:00 The Influence of Calibration Curve Construction and Composition on the Accuracy and Precision of Radiocarbon Wiggle-Matching of Tree Rings, Illustrated by Southern Hemisphere Atmospheric Data Sets from AD 1500–1950 Hogg, Alan G Heaton, Timothy J Ramsey, Christopher Bronk Boswijk, Gretel Palmer, Jonathan G Turney, Chris S M Southon, John Gumbley, Warren 2019 http://dx.doi.org/10.1017/rdc.2019.42 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033822219000420 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Radiocarbon volume 61, issue 5, page 1265-1291 ISSN 0033-8222 1945-5755 journal-article 2019 crcambridgeupr https://doi.org/10.1017/rdc.2019.42 2024-06-05T04:03:48Z ABSTRACT This research investigates two factors influencing the ability of tree-ring data to provide accurate 14 C calibration information: the fitness and rigor of the statistical model used to combine the data into a curve; and the accuracy, precision and reproducibility of the component 14 C data sets. It presents a new Bayesian spline method for calibration curve construction and tests it on extant and new Southern Hemisphere (SH) data sets (also examining their dendrochronology and pretreatment) for the post-Little Ice Age (LIA) interval AD 1500–1950. The new method of construction allows calculation of component data offsets, permitting identification of laboratory and geographic biases. Application of the new method to the 10 suitable SH 14 C data sets suggests that individual offset ranges for component data sets appear to be in the region of ± 10 yr. Data sets with individual offsets larger than this need to be carefully assessed before selection for calibration purposes. We identify a potential geographical offset associated with the Southern Ocean (high latitude) Campbell Island data. We test the new methodology for wiggle-matching short tree-ring sequences and use an OxCal simulation to assess the likely precision obtainable by wiggle-matching in the post-LIA interval. Article in Journal/Newspaper Southern Ocean Cambridge University Press Campbell Island ENVELOPE(169.500,169.500,-52.500,-52.500) Southern Ocean Radiocarbon 61 5 1265 1291 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
ABSTRACT This research investigates two factors influencing the ability of tree-ring data to provide accurate 14 C calibration information: the fitness and rigor of the statistical model used to combine the data into a curve; and the accuracy, precision and reproducibility of the component 14 C data sets. It presents a new Bayesian spline method for calibration curve construction and tests it on extant and new Southern Hemisphere (SH) data sets (also examining their dendrochronology and pretreatment) for the post-Little Ice Age (LIA) interval AD 1500–1950. The new method of construction allows calculation of component data offsets, permitting identification of laboratory and geographic biases. Application of the new method to the 10 suitable SH 14 C data sets suggests that individual offset ranges for component data sets appear to be in the region of ± 10 yr. Data sets with individual offsets larger than this need to be carefully assessed before selection for calibration purposes. We identify a potential geographical offset associated with the Southern Ocean (high latitude) Campbell Island data. We test the new methodology for wiggle-matching short tree-ring sequences and use an OxCal simulation to assess the likely precision obtainable by wiggle-matching in the post-LIA interval. |
format |
Article in Journal/Newspaper |
author |
Hogg, Alan G Heaton, Timothy J Ramsey, Christopher Bronk Boswijk, Gretel Palmer, Jonathan G Turney, Chris S M Southon, John Gumbley, Warren |
spellingShingle |
Hogg, Alan G Heaton, Timothy J Ramsey, Christopher Bronk Boswijk, Gretel Palmer, Jonathan G Turney, Chris S M Southon, John Gumbley, Warren The Influence of Calibration Curve Construction and Composition on the Accuracy and Precision of Radiocarbon Wiggle-Matching of Tree Rings, Illustrated by Southern Hemisphere Atmospheric Data Sets from AD 1500–1950 |
author_facet |
Hogg, Alan G Heaton, Timothy J Ramsey, Christopher Bronk Boswijk, Gretel Palmer, Jonathan G Turney, Chris S M Southon, John Gumbley, Warren |
author_sort |
Hogg, Alan G |
title |
The Influence of Calibration Curve Construction and Composition on the Accuracy and Precision of Radiocarbon Wiggle-Matching of Tree Rings, Illustrated by Southern Hemisphere Atmospheric Data Sets from AD 1500–1950 |
title_short |
The Influence of Calibration Curve Construction and Composition on the Accuracy and Precision of Radiocarbon Wiggle-Matching of Tree Rings, Illustrated by Southern Hemisphere Atmospheric Data Sets from AD 1500–1950 |
title_full |
The Influence of Calibration Curve Construction and Composition on the Accuracy and Precision of Radiocarbon Wiggle-Matching of Tree Rings, Illustrated by Southern Hemisphere Atmospheric Data Sets from AD 1500–1950 |
title_fullStr |
The Influence of Calibration Curve Construction and Composition on the Accuracy and Precision of Radiocarbon Wiggle-Matching of Tree Rings, Illustrated by Southern Hemisphere Atmospheric Data Sets from AD 1500–1950 |
title_full_unstemmed |
The Influence of Calibration Curve Construction and Composition on the Accuracy and Precision of Radiocarbon Wiggle-Matching of Tree Rings, Illustrated by Southern Hemisphere Atmospheric Data Sets from AD 1500–1950 |
title_sort |
influence of calibration curve construction and composition on the accuracy and precision of radiocarbon wiggle-matching of tree rings, illustrated by southern hemisphere atmospheric data sets from ad 1500–1950 |
publisher |
Cambridge University Press (CUP) |
publishDate |
2019 |
url |
http://dx.doi.org/10.1017/rdc.2019.42 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0033822219000420 |
long_lat |
ENVELOPE(169.500,169.500,-52.500,-52.500) |
geographic |
Campbell Island Southern Ocean |
geographic_facet |
Campbell Island Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Radiocarbon volume 61, issue 5, page 1265-1291 ISSN 0033-8222 1945-5755 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/rdc.2019.42 |
container_title |
Radiocarbon |
container_volume |
61 |
container_issue |
5 |
container_start_page |
1265 |
op_container_end_page |
1291 |
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1802650333546020864 |