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Radiocarbon Radiocarbon

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ATMOSPHERIC RADIOCARBON FOR THE PERIOD 1950–2019

Published online by Cambridge University Press:  23 November 2021

Quan Hua Open the ORCID record for Quan Hua[Opens in a new window] ,
Jocelyn C Turnbull Open the ORCID record for Jocelyn C Turnbull[Opens in a new window] ,
Guaciara M Santos Open the ORCID record for Guaciara M Santos[Opens in a new window] ,
Andrzej Z Rakowski ,
Santiago Ancapichún ,
Ricardo De Pol-Holz Open the ORCID record for Ricardo De Pol-Holz[Opens in a new window] ,
Samuel Hammer ,
Scott J Lehman ,
Ingeborg Levin Open the ORCID record for Ingeborg Levin[Opens in a new window]  and
John B Miller Open the ORCID record for John B Miller[Opens in a new window]
...Show all authors
Quan Hua*
Affiliation:
Australian Nuclear Science and Technology Organisation, Locked Bag 2001, KirraweeDC, NSW 2232, Australia
Jocelyn C Turnbull
Affiliation:
Rafter Radiocarbon Laboratory, GNS Science, Lower Hutt, New Zealand CIRES, University of Colorado, Boulder, CO, USA
Guaciara M Santos
Affiliation:
Earth System Science, University of California, Irvine, B321 Croul Hall, Irvine, CA 92697-3100, USA
Andrzej Z Rakowski
Affiliation:
Institute of Physics, Center for Science and Education, Silesian University of Technology, 44–100 Gliwice, Poland
Santiago Ancapichún
Affiliation:
Postgraduate School in Oceanography, Faculty of Natural and Oceanographic Sciences, Universidad de Concepción, Concepción, Chile Centro de Investigación GAIA Antártica (CIGA) and Network for Extreme Environment Research (NEXER), Universidad de Magallanes, Punta Arenas, Chile
Ricardo De Pol-Holz
Affiliation:
Centro de Investigación GAIA Antártica (CIGA) and Network for Extreme Environment Research (NEXER), Universidad de Magallanes, Punta Arenas, Chile
Samuel Hammer
Affiliation:
Institut für Umweltphysik, Heidelberg University, INF 229, 69120 Heidelberg, Germany
Scott J Lehman
Affiliation:
INSTAAR, University of Colorado, Boulder, CO80309-0450, USA
Ingeborg Levin
Affiliation:
Institut für Umweltphysik, Heidelberg University, INF 229, 69120 Heidelberg, Germany
John B Miller
Affiliation:
NOAA Global Monitoring Laboratory, Boulder, CO80305, USA
Jonathan G Palmer
Affiliation:
ARC Centre of Excellence for Australian Biodiversity and Heritage, School of Biological, Earth and Environmental Sciences, University of New South Wales, NSW2052, Australia Chronos 14Carbon-Cycle Facility and the Earth and Sustainability Science Research Centre, University of New South Wales, NSW2052, Australia
Chris S M Turney
Affiliation:
ARC Centre of Excellence for Australian Biodiversity and Heritage, School of Biological, Earth and Environmental Sciences, University of New South Wales, NSW2052, Australia Chronos 14Carbon-Cycle Facility and the Earth and Sustainability Science Research Centre, University of New South Wales, NSW2052, Australia
*
*Corresponding author. Email: qhx@ansto.gov.au
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Abstract

This paper presents a compilation of atmospheric radiocarbon for the period 1950–2019, derived from atmospheric CO2 sampling and tree rings from clean-air sites. Following the approach taken by Hua et al. (2013), our revised and extended compilation consists of zonal, hemispheric and global radiocarbon (14C) data sets, with monthly data sets for 5 zones (Northern Hemisphere zones 1, 2, and 3, and Southern Hemisphere zones 3 and 1–2). Our new compilation includes smooth curves for zonal data sets that are more suitable for dating applications than the previous approach based on simple averaging. Our new radiocarbon dataset is intended to help facilitate the use of atmospheric bomb 14C in carbon cycle studies and to accommodate increasing demand for accurate dating of recent (post-1950) terrestrial samples.

Keywords

Anthropoceneatmospheric carbon dioxidebomb peakbomb radiocarbonthe global carbon cycletree rings
Type
Research Article
Information
Radiocarbon , First View , pp. 1 - 23
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Copyright
© The Author(s), 2021. Published by Cambridge University Press for the Arizona Board of Regents on behalf of the University of Arizona

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