Compatibility of atmospheric 14CO2 measurements: comparing the heidelberg low-level counting facility to international accelerator mass spectrometry (AMS) laboratories

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dc.contributor.authorHammer, Sen_AU
dc.contributor.authorFriedrich, Ren_AU
dc.contributor.authorKromer, Ben_AU
dc.contributor.authorCherkinsky, Aen_AU
dc.contributor.authorLehman, SJen_AU
dc.contributor.authorMeijer, HAJen_AU
dc.contributor.authorNakamura, Ten_AU
dc.contributor.authorPalonen, Ven_AU
dc.contributor.authorReimer, RWen_AU
dc.contributor.authorSmith, AMen_AU
dc.contributor.authorSouthen, JRen_AU
dc.contributor.authorSzidat, Sen_AU
dc.contributor.authorTurnbull, Jen_AU
dc.contributor.authorUchida, Men_AU
dc.date.accessioned2020-03-24T02:45:11Zen_AU
dc.date.available2020-03-24T02:45:11Zen_AU
dc.date.issued2016-09-19en_AU
dc.description.abstractCombining 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 Arizonaen_AU
dc.identifier.citationHammer, 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 14CO2 measurements: comparing the heidelberg low-level counting facility to international accelerator mass spectrometry (AMS) laboratories. Radiocarbon, 59(3), 875-883. doi.10.1017/RDC.2016.62en_AU
dc.identifier.govdoc8471en_AU
dc.identifier.issn0033-8222en_AU
dc.identifier.issue3en_AU
dc.identifier.journaltitleRadiocarbonen_AU
dc.identifier.pagination875-883en_AU
dc.identifier.urihttps://doi.org/10.1017/RDC.2016.62en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9215en_AU
dc.identifier.volume59en_AU
dc.language.isoenen_AU
dc.publisherCambridge University Pressen_AU
dc.subjectAtmosphericsen_AU
dc.subjectCarbonen_AU
dc.subjectAcceleratorsen_AU
dc.subjectMass spectroscopyen_AU
dc.subjectLaboratoriesen_AU
dc.subjectWMOen_AU
dc.titleCompatibility of atmospheric 14CO2 measurements: comparing the heidelberg low-level counting facility to international accelerator mass spectrometry (AMS) laboratoriesen_AU
dc.typeJournal Articleen_AU
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