L. Régalia-Jarlot

TL;DR: The GEISA database as discussed by the authors is a computer accessible spectroscopic database, designed to facilitate accurate forward radiative transfer calculations using a line-byline and layer-by-layer approach.

TL;DR: The GEISA/IASI-03 database as discussed by the authors is the current version of the database, which contains three independent spectroscopic archives related with: an individual line transition spectroscopy parameters sub-database which contains 14 molecules, i.e., H2O, CO2, O3, N2O2, CO, CH4, O2, SO2, NO2, HNO3, OCS, C2H2, N 2, N1, CCL4, CCl4, and N2, representing 51 isotopomers and

TL;DR: The 2000 HITRAN edition, with the updates of 2001, contains improved and new data on the acetylene molecule and the main changes concern the 13.6- and 7.5-μm spectral regions (improved line intensities), and the 5μm region (previously absent from the database).

TL;DR: Using FT spectra (unapodized FWHM: 0.002 cm −1 ) of acetylene 12 C 2 H 2, absolute line positions have been measured (average accuracy: ± 0.0002 cm−1 ) between 1860 and 2180 cm − 1 in the 3ν51, (2ν4+ν5)1I, and (2π 4+π 5)1II cold bands, improving the wavenumbers previously published by Pliva under a resolution of about 0.03 cm−2 as mentioned in this paper.

TL;DR: Using Fourier Transform spectra (unapodized FWHM: 0.002 cm −1 ) of acetylene 12C2H2, absolute line positions have been obtained in the 5-μm region for about 490 lines belonging to 15 hot bands arising from the v4=1 or v5=1 lower vibrational level, improving the data available in this spectral region.