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Carbonyl sulfide (COS) measurements in the Arctic Polar Vortex
Author(s) -
Kourtidis K. A.,
Borchers R.,
Fabian P.,
Harnisch J.
Publication year - 1995
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/94gl03306
Subject(s) - stratosphere , troposphere , carbonyl sulfide , polar vortex , subsidence , altitude (triangle) , atmospheric sciences , polar , environmental science , arctic , dimethyl sulfide , the arctic , sulfuric acid , mixing ratio , climatology , meteorology , geology , materials science , physics , oceanography , geomorphology , sulfur , geometry , mathematics , structural basin , astronomy , metallurgy
One stratospheric carbonyl sulfide (COS) vertical profile in the Arctic polar vortex has been retrieved from air samples collected by the MPAE balloon‐borne cryogenic sampler on January 18, 1992, at Kiruna, Sweden. The measurements were made in the altitude range 7.5–28.5 km. The upper tropospheric volume mixing ratios of COS were 355±60 pptv. The stratospheric profile shows that COS is subject to considerable subsidence this time of the year. The lowest VMRs were encountered at around 20 km altitude, while above that height a COS increase was observed. A possible explanation could be reversible uptake of COS by frozen sulfuric acid aerosols.