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Proceedings Paper

Calculations of non-LTE limb-radiance spectral structure in 9.6-um ozone band
Author(s): Yuri M. Timofeev; Vladimir S. Kostsov; Hartmut Grassl; R. O. Manuilova
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Paper Abstract

The results of limb radiance calculations in the 9.6 micrometers ozone absorption band are presented for the tangent heights 30 - 110 km. Deviations from local thermodynamic equilibrium (LTE) are taken into account for 20 vibrational transitions forming (nu) 1 and (nu) 3 bands. The monochromatic limb radiance in line contours has been investigated for fundamental and hot bands for LTE and non-LTE. Variations of radiance stipulated by variations of kinetic, vibrational temperatures and ozone concentration have been analyzed. For day- and night-time limb radiance spectra have been calculated for different spectral resolutions. The approach is suggested to retrieve ozone profiles under non-LTE conditions using high-resolution limb spectral measurements (e.g., obtained by space-borne devices of MIPAS type).

Paper Details

Date Published: 12 February 1993
PDF: 12 pages
Proc. SPIE 1715, Optical Methods in Atmospheric Chemistry, (12 February 1993); doi: 10.1117/12.140216
Show Author Affiliations
Yuri M. Timofeev, St. Petersburg State Univ. (Russia)
Vladimir S. Kostsov, St. Petersburg State Univ. (Russia)
Hartmut Grassl, Max-Planck Institute of Meteorology (Germany)
R. O. Manuilova, St. Petersburg State Univ. (Russia)


Published in SPIE Proceedings Vol. 1715:
Optical Methods in Atmospheric Chemistry

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