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Proceedings Paper

CDSD-1000: the high-temperature carbon dioxide spectroscopic databank and information system
Author(s): Sergey A. Tashkun; Valery I. Perevalov; Jean-Luc Teffo; Alexander D. Bykov; N. N. Lavrentieva; Yurii L. Babikov
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Paper Abstract

We present a high-temperature version, CDSD-1000, of the Carbon Dioxide Spectroscopic Databank and the associated information system on the spectroscopy of the carbon dioxide molecule. The databank contains the line parameters (positions, intensities, air- and self-broadened halfwidths and coefficients of temperature dependence of air-broadened halfwidths) of the four most abundant isotopic species of CO2. The reference temperature is Tref=1000 K and the intensity cutoff is Icut=10-27 cm-1/(molecule cm-2). More than 3 million lines covering the 260-8310 cm-1, 418-2454 cm-1, 394-4662 cm-1, and 429-2846 cm-1 spectral ranges for 12C16O2, 13C16O2, 12C16O18O, and 12C16O17O, respectively, are included in to CDSD-1000. The line positions and line intensities have been generated within the framework of the method of effective operators. The calculations are based on global fittings of parameters of effective Hamiltonians and effective dipole moment operators to the observed data collected from the literature. The line widths and coefficients of temperature dependence of the line widths have been generated using a semi-empirical approach. Line-by-line simulations of several medium resolution high-temperature (T=1000-1550 K) spectra have been performed in order to validate the databank. CDSD-1000 is freely accessible via ftp://ftp.iao.ru/pub/CDSD-1000. An information system on the spectroscopy of carbon dioxide molecule based on CDSD databank (http://cdsd.iao.ru and http://cdsd.lpma.jussieu.fr) has been elaborated. It allows users to calculate absorption coefficients, absorption, transmittance, radiance in wide ranges of temperatures and pressure for defined isotopic abundance and path length. This system also allows for modeling of spectra recorded with different kinds of spectrometers at different resolutions.

Paper Details

Date Published: 12 January 2004
PDF: 12 pages
Proc. SPIE 5311, 14th Symposium on High-Resolution Molecular Spectroscopy, (12 January 2004); doi: 10.1117/12.545199
Show Author Affiliations
Sergey A. Tashkun, Institute of Atmospheric Optics (Russia)
Valery I. Perevalov, Institute of Atmospheric Optics (Russia)
Jean-Luc Teffo, Lab. de Physique Moleculaire et Applications/CNRS (France)
Univ. Pierre et Marie Curie (France)
Alexander D. Bykov, Institute of Atmospheric Optics (Russia)
N. N. Lavrentieva, Institute of Atmospheric Optics (Russia)
Yurii L. Babikov, Institute of Atmospheric Optics (Russia)


Published in SPIE Proceedings Vol. 5311:
14th Symposium on High-Resolution Molecular Spectroscopy
Leonid N. Sinitsa; Semen N. Mikhailenko, Editor(s)

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