New Fourier transform spectra of water vapor are presented in the range 6500-16 400 cm -1 obtained using pathlengths of up to 800 m and long integration times. These spectra have a significantly higher signal-to-noise than previous measurements in this wavenumber range. Wavenumbers, absolute intensi
Weak Line Water Vapor Spectrum in the 11 787–13 554 cm−1 Region
✍ Scribed by Roman N. Tolchenov; Jonathan Tennyson; J.W. Brault; A.A.D. Canas; Roland Schermaul
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 123 KB
- Volume
- 215
- Category
- Article
- ISSN
- 0022-2852
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✦ Synopsis
Long-pathlength Fourier transform spectra of water vapor recorded previously by Schermaul et al. (J. Mole. Spectrosc. 211, 169 (2002)) are analyzed in the range 11 787-13 554 cm -1 . Wavenumbers, absolute intensities, and self-broadening coefficients, with associated uncertainties, are presented for 2137 lines. Analysis of these lines using variational linelists has been conducted leading to the assignment of 1906 of the new lines to 23 different upper vibrational states in the 3ν + δ, 4ν, and 4ν + δ polyads, a further 19 lines are ascribed to H 2 18 O. Comparisons are made with the HITRAN database.
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New laboratory measurements are presented for the near-infrared and visible spectrum (8600-15 000 cm -1 ) of water vapor. Spectral line parameters, principally intensities and air-broadening coefficients, are derived from Fourier transform spectroscopic measurements at high resolution (0.03 cm -1 ),
The new laboratory measurements of R. Schermaul et al. (J. Mol. Spectrosc. 208), for the near-infrared and visible spectrum of water vapor, covering the 2ν + δ, 3ν, 3ν + δ, and 4ν polyads, are combined with accurate calculations of weaker lines to provide a new, comprehensive linelist of water trans