Oxygen isotope anomaly not present in water vapor from Alert, Canada

Miller, Martin F.. 2013 Oxygen isotope anomaly not present in water vapor from Alert, Canada. Proceedings of the National Academy of Sciences, 110 (48), E4567.

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Lin et al. (1) claim to have discovered a positive 17O anomaly in water vapor from Alert, Canada, indicative of a component of stratospheric origin. However, their data (Tables S1−S5) do not support that assertion. Their finding of Δ17O = 76 ± 16 ppm (2 SE) in the Alert samples is relative to a reference fractionation line [designated Chicago local precipitation (CLP)] of much lower precision [slope 0.529 ± 0.003, ordinate axis intercept 70 ± 33 ppm from Vienna Standard Mean Ocean Water (VSMOW) on the logarithmic form of the oxygen triple-isotope plot] than is the norm for investigations that characterize Δ17O values at the parts per million …

Item Type: Publication - Article
Digital Object Identifier (DOI):
Programmes: BAS Programmes > Other
ISSN: 0027-8424
Date made live: 13 Jan 2014 12:14 +0 (UTC)

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