Stratospheric HCl from infrared spectra
Description
HCl has been observed in the stratosphere from balloon borne spectroscopic measurements of a portion of the fundamental band in the 3 microns wavelength region. The observation of absorption lines using the sun as a source at solar zenith angles larger than 90° indicates an HCl volume mixing ratio equal to (3.8 ± 1.5) × 10−10 at 20 km increasing with altitude at least up to 30 km where the value is (1.4 ± 0.6) × 10−9. The total zenith amount above 21 km is found to be (10± 3.5) × 10−14 cm−2 in agreement with previous observations performed up to this altitude. A maximum number density equal to (7.2 ± 3) × 108 cm−3 is observed at 24 ± 2 km altitude.
Citation
Ackerman, M.; Frimout, D.; Girard, A.; Gottignies, M.; Muller, C. (1976). Stratospheric HCl from infrared spectra. , Geophysical Research Letters, Vol. 3, Issue 2, 81-83, DOI: 10.1029/GL003i002p00081.Identifiers
scopus: 2-s2.0-1642472289
Type
Article
Peer-Review
Yes
Language
eng