Mahieu, Emmanuel[Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS) >]
Demoulin, Philippe[Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS) >]
[en] water vapor ; spectroscopic line parameters ; atmospheric composition
[en] Despite recent major improvements of water vapour databases, the insufficient quality or consistency of the H2O spectroscopic parameters has been reported many times and line parameters are often manually adjusted to minimize residuals and improve the quality of the fits. Atmospheric observations allow assessing the quality of databases through their simulation using the different line parameters reported in those databases.
This work presents four concrete examples of the spectroscopic problems and proposed improvements in various spectral regions.