UFR de Physique

Propositions de stages en laboratoire -- M2

Les offres sont actualisées en mai. Par exemple, les offres de stages pour l'année universitaire 2015-2016 seront mises en place en mai 2015, les offres de stages pour l'année universitaire 2016-2017 seront mises en place pour en mai 2016, etc.

Characterization of the instrumental prototype CHRIS (Compact High spectral Resolution Infrared Spectrometer) for measuring atmospheric composition

  • Option International « Atmospheric Environnement » du parcours Lumière-Matière
  • Laboratoire: Laboratoire d'Optique Atmosphérique (LOA )
  • Responsable du stage: HERBIN Hervé (Herve.Herbin@univ-lille.fr,
  • Mots clés: Atmospheric composition, Infrared spectroscopy, FTS
  • Fiche complète en PDF : Fiche complète en PDF

The high spectral resolution infrared instrumentation is a powerful tool to analyze gaseous and particulate atmospheric species. Therefore in recent years, several instruments of this type have been embedded on satellite platforms such as: TES, IASI, or TANSO-FTS. The intrinsic qualities of these instruments can provide daily vertical distributions at global scale of many gas species. However, they suffer from two major drawbacks: 1- their spatial resolution is very limited, and 2- their measurements have very weak sensitivity to the lower atmospheric layers (between 0 and 2 km altitude). The LOA has recently acquired a unique instrument to record atmospheric infrared spectra with high spectral resolution from the ground. This has the advantage of being portable and therefore can make accurate measurements locally with a very good sensitivity to physical and chemical constituents of the lower troposphere. The objective of this research training is to achieve the complete characterization of this instrument in terms of spectral and radiometric calibration, as well as performed the first experiments/analysis to retrieve geophysical products.