Abstract
The variation of OCS in the northern hemisphere for the period 1977–1991 was investigated by grouping all measurements made by our research group for that period. The data set contained 1066 measurements made in the northern hemisphere over a longitude range of 52 E to 155 W and a latitude range of 10 N to 85 N. About 50% of the measurements were made from aircraft. The overall data set had a mean of 512 parts per trillion by volume (pptv) and a standard deviation of 119 pptv. The data obtained from aircraft had a mean of 514 pptv and a standard deviation of 64 pptv. A study of the time series constructed from the data set and several subsets indicate that the change in global OCS with time is between −1.5 and 1.5 parts per trillion per year at the 95% confidence level. The data had no seasonal dependence within the precision of the data set.
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Bandy, A.R., Thornton, D.C., Scott, D.L. et al. A time series for carbonyl sulfide in the northern hemisphere. J Atmos Chem 14, 527–534 (1992). https://doi.org/10.1007/BF00115256
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DOI: https://doi.org/10.1007/BF00115256