2 research outputs found
Marvel analysis of the measured high-resolution rovibrational spectra of H232S
44325 measured and assigned transitions of H232S, the parent isotopologue of the hydrogen sulfide molecule, are collated from 33 publications into a single database and reviewed critically. Based on this information, rotation-vibration energy levels are determined for the ground electronic state using the Measured Active Rotational-Vibrational Energy Levels (MARVEL) technique. The ortho and para principal components of the measured spectroscopic network of H232S are considered separately. The verified set of 25 293 ortho- and 18 778 para- H232S transitions determine 3969 ortho and 3467 para energy levels. The MARVEL results are compared with alternative data compilations, including a theoretical variational linelist
The HITRAN 2012 Molecular Spectroscopic Database
This paper describes the status of the latest edition of the HITRAN molecular spectroscopic
compilation. The new edition is meant to replace the previous HITRAN edition of 2008 and its
updates during the intervening years. The HITRAN molecular absorption compilation is
comprised of six major components structured into folders that are freely accessible on the
internet. These folders consist of the traditional line-by-line spectroscopic parameters required
for high-resolution radiative-transfer codes, infrared absorption cross-sections for molecules not
yet amenable to representation in a line-by-line form, ultraviolet spectroscopic parameters,
aerosol indices of refraction, collision-induced absorption data, and general tables such as
partition sums that apply globally to the data. The new HITRAN is greatly extended in terms of
accuracy, spectral coverage, additional absorption phenomena, and validity. Molecules and
isotopologues have been added that address the issues of atmospheres beyond the Earth. Also
discussed is a new initiative that casts HITRAN into a relational database format that offers
many advantages over the long-standing sequential text-based structure that has existed since the
initial release of HITRAN in the early 1970s