Physics
Scientific paper
Apr 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985georl..12..199c&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 12, April 1985, p. 199-202.
Physics
16
Absorption Spectra, Atmospheric Composition, Ethane, Infrared Spectra, Solar Spectra, Tropopause, Airborne Equipment, Atmospheric Chemistry, Ground Truth
Scientific paper
A number of prominent Q-branches of the ν7 band of C2H6 have been identified near 3000 cm-1 in aircraft and ground-based infrared solar absorption spectra. The aircraft spectra provide the column amount above 12 km at various altitudes. The column amount is strongly correlated with tropopause height and can be described by a constant mixing ratio of 0.46 ppbv in the upper troposphere and a mixing ratio scale height of 3.9 km above the tropopause. The ground-based spectra yield a column of 9.0×1015 molecules cm-2 above 2.1 km; combining these results implies a tropospheric mixing ratio of approximately 0.63 ppbv.
Coffey Timothy M.
Devi Malathy V.
Goldman Abby
Harvey Gale A.
Mankin William G.
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