Research Commons
      • Browse 
        • Communities & Collections
        • Titles
        • Authors
        • By Issue Date
        • Subjects
        • Types
        • Series
      • Help 
        • About
        • Collection Policy
        • OA Mandate Guidelines
        • Guidelines FAQ
        • Contact Us
      • My Account 
        • Sign In
        • Register
      View Item 
      •   Research Commons
      • University of Waikato Research
      • Science and Engineering
      • Science and Engineering Papers
      • View Item
      •   Research Commons
      • University of Waikato Research
      • Science and Engineering
      • Science and Engineering Papers
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      Investigating the interhemispheric ¹⁴C offset in the 1st millennium AD and assessment of laboratory bias and calibration errors

      Hogg, Alan G.; Palmer, Jonathan G.; Boswijk, Gretel; Reimer, Paula J.; Brown, David
      Thumbnail
      Files
      Hogg investigating the Interhemispheric C.pdf
      376.8Kb
      DOI
       10.1017/S0033822200034238
      Link
       www.radiocarbon.org
      Find in your library  
      Citation
      Export citation
      Hogg, A., Palmer, J., Boswijk, G., Reimer, P. & Brown, D. (2009). Investigating the interhemispheric ¹⁴C offset in the 1st millennium AD and assessment of laboratory bias and calibration errors. Radiocarbon, 51(4), 1177-1186.
      Permanent Research Commons link: https://hdl.handle.net/10289/3621
      Abstract
      Past measurements of the radiocarbon interhemispheric offset have been restricted to relatively young samples because of a lack of older dendrochronologically secure Southern Hemisphere tree-ring chronologies. The Southern Hemisphere calibration data set SHCal04 earlier than AD 950 utilizes a variable interhemispheric offset derived from measured 2nd millennium AD Southern Hemisphere/Northern Hemisphere sample pairs with the assumption of stable Holocene ocean/atmosphere interactions. This study extends the range of measured interhemispheric offset values with 20 decadal New Zealand kauri and Irish oak sample pairs from 3 selected time intervals in the 1st millennium AD and is part of a larger program to obtain high-precision Southern Hemisphere 14C data continuously back to 200 BC. We found an average interhemispheric offset of 35 ± 6 yr, which although consistent with previously published 2nd millennium AD measurements, is lower than the offset of 55–58 yr utilized in SHCal04. We concur with McCormac et al. (2008) that the IntCal04 measurement for AD 775 may indeed be slightly too old but also suggest the McCormac results appear excessively young for the interval AD 755–785. In addition, we raise the issue of laboratory bias and calibration errors, and encourage all laboratories to check their consistency with appropriate calibration curves and invest more effort into improving the accuracy of those curves.
      Date
      2009
      Type
      Conference Contribution
      Publisher
      Arizona Board of Regents on behalf of the University of Arizona
      Rights
      This article has been published in the journal: Radiocarbon. © 2009 the Arizona Board of Regents on behalf of the University of Arizona. Used with permission.
      Collections
      • Science and Engineering Papers [3124]
      Show full item record  

      Usage

      Downloads, last 12 months
      52
       
       
       

      Usage Statistics

      For this itemFor all of Research Commons

      The University of Waikato - Te Whare Wānanga o WaikatoFeedback and RequestsCopyright and Legal Statement