Please use this identifier to cite or link to this item:
Title: Compatibility of atmospheric 14CO2 measurements: comparing the heidelberg low-level counting facility to international accelerator mass spectrometry (AMS) laboratories
Authors: Hammer, S
Friedrich, R
Kromer, B
Cherkinsky, A
Lehman, SJ
Meijer, HAJ
Nakamura, T
Palonen, V
Reimer, RW
Smith, AM
Southen, JR
Szidat, S
Turnbull, J
Uchida, M
Keywords: Atmospherics
Mass spectroscopy
Issue Date: 19-Sep-2016
Publisher: Cambridge University Press
Citation: Hammer, S., Friedrich, R., Kromer, B., Cherkinsky, A., Lehman, S. J., Meijer, H. A.J.,Nakamura, T., Palonen, V., Reimer, R. W., Smith, A. M., Southon, J. R., Szidat, S., Turnbull, J., & Uchida, M., (2017). Compatibility of atmospheric 14CO2m measurements: comparing the Heidelberg Low-Level Counting Facility to International Accelerator Mass Spectrometry (AMS) Laboratories. Radiocarbon, 59(3), 875-883. doi.10.1017/RDC.2016.62
Abstract: Combining atmospheric Δ14CO2 data sets from different networks or laboratories requires secure knowledge on their compatibility. In the present study, we compare Δ14CO2 results from the Heidelberg low-level counting (LLC) laboratory to 12 international accelerator mass spectrometry (AMS) laboratories using distributed aliquots of five pure CO2 samples. The averaged result of the LLC laboratory has a measurement bias of –0.3±0.5‰ with respect to the consensus value of the AMS laboratories for the investigated atmospheric Δ14C range of 9.6 to 40.4‰. Thus, the LLC measurements on average are not significantly different from the AMS laboratories, and the most likely measurement bias is smaller than the World Meteorological Organization (WMO) interlaboratory compatibility goal for Δ14CO2 of 0.5‰. The number of intercomparison samples was, however, too small to determine whether the measurement biases of the individual AMS laboratories fulfilled the WMO goal. © 2016 by the Arizona Board of Regents on behalf of the University of Arizona
Gov't Doc #: 8471
ISSN: 0033-8222
Appears in Collections:Journal Articles

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.