GEISA : spectroscopic database

spectroscopic database

The project

Since over three decades, the ARA (Atmospheric Radiation Analysis) group at LMD (Laboratoire de Météorologie Dynamique, France) has developed GEISA (Gestion et Etude des Informations Spectroscopiques Atmosphériques: Management and Study of Atmospheric Spectroscopic Information), a computer accessible database system [Chédin et al. (1982), Husson et al. (1992), Jacquinet-Husson et al. (1999, 2005, 2008, 2011, 2016), Armante et al (2016), designed to facilitate accurate and fast forward, calculations of atmospheric radiative transfer using a line-by-line and (atmospheric) layer-by-layer approach. This effort has proven to be beneficial to the atmospheric scientific community participating in direct and inverse radiative transfer studies.

Products available

  • GEISA 2015 : line transition parameters
  • GEISA 2015 : absorption cross-sections.
  • GEISA 2015 : Microphysical and optical properties of atmospheric aerosols.

Data access are open and free.

Data access

Http download links:




Point of contact

Cathy Boonne (CDS ESPRI, Institut Pierre Simon Laplace) Coordinator CDS ESPRI

Raymond Armante (Laboratoire de Météorologie Dynamique) Coordinator GEISA-AERIS

Agnès Perrin (Laboratoire de Météorologie Dynamique) Coordinator spectroscopy and kinetic data CDS ESPRI