Positions, intensities and air-broadened line shape parameters for the 1←0 bands of CO isotopologues

Smith, Mary Ann H.

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https://hdl.handle.net/2142/100694 Copy

Description

Title

Positions, intensities and air-broadened line shape parameters for the 1←0 bands of CO isotopologues

Author(s)

Smith, Mary Ann H.

Contributor(s)

• Mantz, Arlan
• Gordon, Iouli E.
• Gamache, Robert R.
• Li, Gang
• Crawford, Timothy J.
• Sung, Keeyoon
• Benner, D. Chris
• Devi, V. Malathy

Issue Date

2018-06-22

Keyword(s)

Atmospheric science

Abstract

High-resolution spectra recorded with Fourier transform spectrometers (FTS) have been analyzed to determine line positions and intensities for transitions in the 1←0 bands of 12C 16O, 13C 16O, 12C 18O and 13C 16O, and air-broadened halfwidth and shift coefficients, their temperature dependences, line mixing and speed dependence parameters were measured for 13C 16O and 12C 18O transitions. These parameters were retrieved from two multispectrum fittings (1940-2260 cm−1 ) of a data set that included two room-temperature spectra of a natural sample of CO recorded with the Kitt Peak FTS and self- and air-broadened spectra (up to 626 Torr) of 13C-enriched and 18O-enriched CO samples between 150 K and room temperature recorded with the JPL Bruker IFS-125HR FTS. Sample cells with path lengths of about 0.5, 1.1, 4.3 and 20.4 cm were used, and all but the shortest cell were temperature controlled. The retrieved 1←0 band strengths of 12C 16O, 12C 18O and 13C 18O are very close to the HITRAN2012a values, but for 13C 16O the band strength is ∼4.5% larger than the HITRAN2012 value and 2.6% higher than the HITRAN2016b value.c

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

eng

Permalink

http://hdl.handle.net/2142/100694

DOI

10.15278/isms.2018.FF01

Copyright and License Information

Copyright 2018 Mary Ann H. Smith

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