Fourier transform infrared spectroscopy is an extremely powerful technique for atmospheric remote sensing. In particular, on board a satellite and working in emission in the limb-viewing mode, it allows a global coverage during day and night. Based on this method the MIPAS experiment has been recently launched on ESA's Environmental satellite (ENVISAT). However, accurate retrievals require high quality spectroscopic parameters. It is the goal of this paper to show on a few selected examples the importance of using for the retrievals high quality spectral parameters derived from the best possible experimental and theoretical laboratory methods.
La spectroscopie par transformée de Fourrier est une méthode très puissante pour le sondage atmosphérique. En particulier faire des mesures en émission par sondage au limbe à partir d'un satellite permet d'effectuer une couverture globale aussi bien le jour que la nuit. C'est pourquoi l'expérience MIPAS, basée sur cette technique, a été récemment mise en orbite sur le satellite européen ENVISAT dédié à l'environnement. Cependant la qualité des profils de concentration déduits des spectres atmosphériques est intimement liée à celle des données spectrales utilisées pour le dépouillement. Ce papier a pour but de montrer sur quelques exemples choisis l'importance de disposer pour ce faire de données spectrales de qualité, données obtenues au laboratoire à l'aide des meilleurs outils expérimentaux et théoriques.
Mots-clés : Spectroscopie moléculaire, Infrarouge, Sondages atmosphériques, Constituents atmosphériques minoritaires, Ozone stratosphérique, Climat
Jean-Marie Flaud 1; Hermann Oelhaf 2
@article{CRPHYS_2004__5_2_259_0, author = {Jean-Marie Flaud and Hermann Oelhaf}, title = {Infrared spectroscopy and the terrestrial atmosphere}, journal = {Comptes Rendus. Physique}, pages = {259--271}, publisher = {Elsevier}, volume = {5}, number = {2}, year = {2004}, doi = {10.1016/j.crhy.2004.01.016}, language = {en}, }
Jean-Marie Flaud; Hermann Oelhaf. Infrared spectroscopy and the terrestrial atmosphere. Comptes Rendus. Physique, Gas phase molecular spectroscopy, Volume 5 (2004) no. 2, pp. 259-271. doi : 10.1016/j.crhy.2004.01.016. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2004.01.016/
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