Physics
Scientific paper
Aug 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982georl...9..860k&link_type=abstract
Geophysical Research Letters, vol. 9, Aug. 1982, p. 860-862.
Physics
3
Atmospheric Composition, Atmospheric Radiation, Earth Limb, Hydrochloric Acid, Air Pollution, Black Body Radiation, Cryogenic Equipment, Radiance, Thermodynamic Equilibrium
Scientific paper
Calculation results are presented for the contribution of the non-Local Thermodynamic Equilibrium process of resonant scattering of sunlight in the 1-0 band of HCl to the earthlimb radiance, for the case of tangent altitudes from 20 to 90 km. It is established that the mechanism in question is a significant contributor to radiance at altitudes as low as 20 km, and that it becomes greater than the Local Thermodynamic Equilibrium contribution above 40 km. Attention is given to the prospects for detection of HCl at altitudes approaching 80 km, by means of the Cryogenic Limb Array Etalon Spectrometer scheduled for deployment by the NASA Upper Atmospheric Research Satellite.
James Thomas C.
Kumer Jack B.
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