Marine20 - the marine radiocarbon age calibration curve (0 - 55,000 cal BP), simulated data for IntCal20
The concentration of radiocarbon (14C) differs between ocean and atmosphere. Radiocarbon determinations from samples which obtained their 14C in the marine environment therefore need a marine-specific calibration curve and cannot be calibrated directly against the atmospheric-based IntCal20 curve. T...
Main Authors: | , , , , , , , , , , , , , , , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2020
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.914500 https://doi.org/10.1594/PANGAEA.914500 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.914500 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.914500 2024-09-15T18:12:04+00:00 Marine20 - the marine radiocarbon age calibration curve (0 - 55,000 cal BP), simulated data for IntCal20 Heaton, Timothy J Köhler, Peter Butzin, Martin Bard, Edouard Reimer, Ron W Austin, William EN Ramsey, Christopher Bronk Grootes, Pieter Meiert Hughen, Konrad A Kromer, Bernd Reimer, Paula J Adkins, Jess F Burke, Andreas Cook, Mea S Olsen, Jesper Skinner, Luke C 2020 text/tab-separated-values, 40 data points https://doi.pangaea.de/10.1594/PANGAEA.914500 https://doi.org/10.1594/PANGAEA.914500 en eng PANGAEA Heaton, Timothy J; Köhler, Peter; Butzin, Martin; Bard, Edouard; Reimer, Ron W; Austin, William EN; Ramsey, Christopher Bronk; Grootes, Pieter Meiert; Hughen, Konrad A; Kromer, Bernd; Reimer, Paula J; Adkins, Jess F; Burke, Andreas; Cook, Mea S; Olsen, Jesper; Skinner, Luke C (2020): Marine20 - the marine radiocarbon age calibration curve (0-55,000 cal BP). Radiocarbon, 62(4), 779-820, https://doi.org/10.1017/RDC.2020.68 https://doi.pangaea.de/10.1594/PANGAEA.914500 https://doi.org/10.1594/PANGAEA.914500 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess File format File name File size marine reservoir age modelling radiocarbon Uniform resource locator/link to file dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.91450010.1017/RDC.2020.68 2024-07-24T02:31:34Z The concentration of radiocarbon (14C) differs between ocean and atmosphere. Radiocarbon determinations from samples which obtained their 14C in the marine environment therefore need a marine-specific calibration curve and cannot be calibrated directly against the atmospheric-based IntCal20 curve. This paper presents Marine20, an update to the internationally-agreed marine radiocarbon age calibration curve that provides a non-polar global-average marine record of radiocarbon from 0 – 55 cal kBP and serves as a baseline for regional oceanic variation. Marine20 is based upon 500 simulations with an ocean/atmosphere/biosphere box-model of the global carbon cycle that has been forced by posterior realisations of our Northern Hemispheric atmospheric IntCal20 14C curve and reconstructed changes in CO2 obtained from ice core data. These forcings enable us to incorporate carbon cycle dynamics and temporal changes in the atmospheric 14C level. The box-model simulations of the global-average marine radiocarbon reservoir age are similar to those of a more complex three-dimensional ocean general circulation model. However, simplicity and speed of the box model allow us to use a Monte Carlo approach to rigorously propagate the uncertainty in both the historic concentration of atmospheric 14C and other key parameters of the carbon cycle through to our final Marine20 calibration curve. This robust propagation of uncertainty is fundamental to providing reliable precision for the radiocarbon age calibration of marine based samples. We make a first step towards deconvolving the contributions of different processes to the total uncertainty; discuss the main differences of Marine20 from the previous age calibration curve Marine13; and identify the limitations of our approach together with key areas for further work. The updated values for ????????, the regional marine radiocarbon reservoir age corrections required to calibrate against Marine20, can be found at the data base http://calib.org/marine/. This data set includes: - the data ... Dataset ice core PANGAEA - Data Publisher for Earth & Environmental Science |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
File format File name File size marine reservoir age modelling radiocarbon Uniform resource locator/link to file |
spellingShingle |
File format File name File size marine reservoir age modelling radiocarbon Uniform resource locator/link to file Heaton, Timothy J Köhler, Peter Butzin, Martin Bard, Edouard Reimer, Ron W Austin, William EN Ramsey, Christopher Bronk Grootes, Pieter Meiert Hughen, Konrad A Kromer, Bernd Reimer, Paula J Adkins, Jess F Burke, Andreas Cook, Mea S Olsen, Jesper Skinner, Luke C Marine20 - the marine radiocarbon age calibration curve (0 - 55,000 cal BP), simulated data for IntCal20 |
topic_facet |
File format File name File size marine reservoir age modelling radiocarbon Uniform resource locator/link to file |
description |
The concentration of radiocarbon (14C) differs between ocean and atmosphere. Radiocarbon determinations from samples which obtained their 14C in the marine environment therefore need a marine-specific calibration curve and cannot be calibrated directly against the atmospheric-based IntCal20 curve. This paper presents Marine20, an update to the internationally-agreed marine radiocarbon age calibration curve that provides a non-polar global-average marine record of radiocarbon from 0 – 55 cal kBP and serves as a baseline for regional oceanic variation. Marine20 is based upon 500 simulations with an ocean/atmosphere/biosphere box-model of the global carbon cycle that has been forced by posterior realisations of our Northern Hemispheric atmospheric IntCal20 14C curve and reconstructed changes in CO2 obtained from ice core data. These forcings enable us to incorporate carbon cycle dynamics and temporal changes in the atmospheric 14C level. The box-model simulations of the global-average marine radiocarbon reservoir age are similar to those of a more complex three-dimensional ocean general circulation model. However, simplicity and speed of the box model allow us to use a Monte Carlo approach to rigorously propagate the uncertainty in both the historic concentration of atmospheric 14C and other key parameters of the carbon cycle through to our final Marine20 calibration curve. This robust propagation of uncertainty is fundamental to providing reliable precision for the radiocarbon age calibration of marine based samples. We make a first step towards deconvolving the contributions of different processes to the total uncertainty; discuss the main differences of Marine20 from the previous age calibration curve Marine13; and identify the limitations of our approach together with key areas for further work. The updated values for ????????, the regional marine radiocarbon reservoir age corrections required to calibrate against Marine20, can be found at the data base http://calib.org/marine/. This data set includes: - the data ... |
format |
Dataset |
author |
Heaton, Timothy J Köhler, Peter Butzin, Martin Bard, Edouard Reimer, Ron W Austin, William EN Ramsey, Christopher Bronk Grootes, Pieter Meiert Hughen, Konrad A Kromer, Bernd Reimer, Paula J Adkins, Jess F Burke, Andreas Cook, Mea S Olsen, Jesper Skinner, Luke C |
author_facet |
Heaton, Timothy J Köhler, Peter Butzin, Martin Bard, Edouard Reimer, Ron W Austin, William EN Ramsey, Christopher Bronk Grootes, Pieter Meiert Hughen, Konrad A Kromer, Bernd Reimer, Paula J Adkins, Jess F Burke, Andreas Cook, Mea S Olsen, Jesper Skinner, Luke C |
author_sort |
Heaton, Timothy J |
title |
Marine20 - the marine radiocarbon age calibration curve (0 - 55,000 cal BP), simulated data for IntCal20 |
title_short |
Marine20 - the marine radiocarbon age calibration curve (0 - 55,000 cal BP), simulated data for IntCal20 |
title_full |
Marine20 - the marine radiocarbon age calibration curve (0 - 55,000 cal BP), simulated data for IntCal20 |
title_fullStr |
Marine20 - the marine radiocarbon age calibration curve (0 - 55,000 cal BP), simulated data for IntCal20 |
title_full_unstemmed |
Marine20 - the marine radiocarbon age calibration curve (0 - 55,000 cal BP), simulated data for IntCal20 |
title_sort |
marine20 - the marine radiocarbon age calibration curve (0 - 55,000 cal bp), simulated data for intcal20 |
publisher |
PANGAEA |
publishDate |
2020 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.914500 https://doi.org/10.1594/PANGAEA.914500 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
Heaton, Timothy J; Köhler, Peter; Butzin, Martin; Bard, Edouard; Reimer, Ron W; Austin, William EN; Ramsey, Christopher Bronk; Grootes, Pieter Meiert; Hughen, Konrad A; Kromer, Bernd; Reimer, Paula J; Adkins, Jess F; Burke, Andreas; Cook, Mea S; Olsen, Jesper; Skinner, Luke C (2020): Marine20 - the marine radiocarbon age calibration curve (0-55,000 cal BP). Radiocarbon, 62(4), 779-820, https://doi.org/10.1017/RDC.2020.68 https://doi.pangaea.de/10.1594/PANGAEA.914500 https://doi.org/10.1594/PANGAEA.914500 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.91450010.1017/RDC.2020.68 |
_version_ |
1810449660134817792 |