The 1997 spectroscopic GEISA databank

The current version GEISA-97 of the computer-accessible database system GEI SA (Gestion et Etude des Informations Spectroscopiques Atmospheriques: Mana gement and Study of Atmospheric Spectroscopic Information) is described. Th is catalogue contains 1,346,266 entries. These are spectroscopic parameters required to describe adequately the individual spectral lines belonging to 42 molecules (96 isotopic species) and located between 0 and 22,656 cm(-1) . The featured molecules are of interest in studies of the terrestrial as w ell as the other planetary atmospheres, especially those of the Giant Plane ts. GEISA-97 contains also a catalog of absorption cross-sections of molecu les such as chlorofluorocarbons which exhibit unresolvable spectra. The mod ifications and improvements made to the earlier edition (GEISA-92) and the data management software are described. GEISA-97 and the associated managem ent software are accessible from the ARA/LMD (Laboratoire de Meteorologie D ynamique du CNRS, France) web site: http://ara01.polytechnique.fr/registrat ion. (C) 1999 Elsevier Science Ltd. All rights reserved.