Mini-Symposium: Environmental/Atmospheric , Invited Lecture

Molecules of Tropospheric or Stratospheric Interest: From Laboratory Spectroscopy to Satellite Applications

A. Perrin1,5, L. Manceron2,6, R. Armante1,5, F. Kwabia-Tchana3,7, P. Roy2, D. Doizi4,8
1Laboratoire de Météorologie Dynamique/IPSL, 2Synchrotron SOLEIL, AILES Beamline, 3Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), 4Den-Service d’Etude du Comportement des Radionucléides (SECR), 5 Ecole Polytechnique, Palaiseau, France, 6MONARIS, 7Université de Paris et Université Paris Est Créteil, IPSL, 8Université Paris-Saclay

Remote sensing in the infrared region is a very powerful technique for observing atmospheric composition, either from satellite, balloon borne or ground-based systems. However, together with an accurate radiative transfer code, the analysis and interpretation of the atmospheric spectra require good knowledge of the molecular parameters of the species of interest as well as of the interfering species. This is particularly true for the recent instruments which cover wide spectral ranges at rather high spectral resolutions with excellent signal to noise ratios. The present talk will describe spectroscopic analyses which lead to improved line positions and intensities for several molecules of stratospheric or tropospheric interest. Through these examples it will be demonstrated that improving the quality of the spectroscopic parameters leads to a better interpretation of the atmospheric spectra.