Computer Science – Sound
Scientific paper
Mar 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001georl..28..779l&link_type=abstract
Geophysical Research Letters, Volume 28, Issue 5, p. 779-782
Computer Science
Sound
9
Atmospheric Composition And Structure: Constituent Sources And Sinks, Atmospheric Composition And Structure: Middle Atmosphere-Composition And Chemistry, Atmospheric Composition And Structure: Instruments And Techniques
Scientific paper
CH3CN in the stratosphere has been measured by the Microwave Limb Sounder (MLS) on the Upper Atmosphere Research Satellite (UARS), providing the first global CH3CN dataset. The MLS observations are in broad agreement with past high and midlatitude observations of CH3CN, although concentrations are a little larger than previously observed. In the tropics, where CH3CN has not up to now been measured, a persistent `peak' in the profiles is seen around 22 hPa, which may be evidence of a tropical stratospheric CH3CN source. Comparisons are made with the NCAR SOCRATES model, including runs having an artificial tropical stratospheric CH3CN source.
Brasseur Guy P.
Khosravi Rashid
Livesey Nathaniel J.
Read William G.
Tyndall Geoffrey S.
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