Physics
Scientific paper
Nov 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28.4095s&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 21, p. 4095-4098
Physics
23
Atmospheric Composition And Structure, Atmospheric Composition And Structure: Constituent Sources And Sinks, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry
Scientific paper
Carbonyl sulfide (COS) was measured in polar firn air from one Arctic and two Antarctic locations. The air samples represent atmospheric composition from the early to mid-20th century up to the present day. This provides the longest record to date of atmospheric COS. Southern Hemispheric (SH) concentrations appear to have been almost constant at 482 +/- 13 ppt over this period, apart from a slight rise in the earliest part of the record. Northern Hemispheric (NH) concentrations also showed relatively little variation with a mean of 525 +/- 17 ppt. Over the last ten years, however, NH concentrations appear to have declined by about 8 +/- 5%. Such a decline might be due to decreased carbon disulfide (CS2) emissions by the viscose-rayon industry. The absence of any large trend in COS concentrations over the last fifty or more years argues against COS being the origin of reported increases in stratospheric sulfate aerosol.
Atlas Elliot
Barnola Jean-Marc
Chappellaz Jérôme
Penkett Stuart A.
Stroud Verity
No associations
LandOfFree
A long-term record of carbonyl sulfide (COS) in two hemispheres from firn air measurements does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A long-term record of carbonyl sulfide (COS) in two hemispheres from firn air measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A long-term record of carbonyl sulfide (COS) in two hemispheres from firn air measurements will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1552006