Modelling of non-LTE limb spectra of i.r. ozone bands for the MIPAS space experiment

R. O. Manuilova, O. A. Gusev, A. A. Kutepov, T. Von Clarmann, H. Oelhaf, G. P. Stiller, A. Wegner, M. López-Puertas, F. J. Martín-Torres, G. Zaragoza, J. M. Flaud

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

A new model for calculating the populations of the ozone vibrational states under non-LTE (Local Thermodynamic Equilibrium) conditions is presented. In the model, 23 vibrational levels of the O3 molecule, as well as three vibrational levels of the O2 molecule and two vibrational levels of the N2 molecule, are considered. The radiative transfer at the break-down of LTE was treated explicitly for 150000 ro-vibrational transitions. The populations obtained were used to calculate limb radiances in various spectral regions of the 4.8 and 9.6 μm bands. Test retrievals of O3 vertical volume mixing ratio (VMR) profiles with a radiance model disregarding non-LTE were performed in order to assess the potential impact of non-LTE effects on the retrieval of the O3 abundances from MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) measurements.

Original languageEnglish
Pages (from-to)405-422
Number of pages18
JournalJournal of Quantitative Spectroscopy and Radiative Transfer
Volume59
Issue number3-5
DOIs
Publication statusPublished - Mar 5 1998
Externally publishedYes

ASJC Scopus subject areas

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy

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    Manuilova, R. O., Gusev, O. A., Kutepov, A. A., Von Clarmann, T., Oelhaf, H., Stiller, G. P., Wegner, A., López-Puertas, M., Martín-Torres, F. J., Zaragoza, G., & Flaud, J. M. (1998). Modelling of non-LTE limb spectra of i.r. ozone bands for the MIPAS space experiment. Journal of Quantitative Spectroscopy and Radiative Transfer, 59(3-5), 405-422. https://doi.org/10.1016/S0022-4073(97)00120-9