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Thermodynamic derivatives of infrared absorptanceCalculation of the concentration, pressure, and temperature dependence of the spectral absorptance of a vibrational absorption band. A smooth thermodynamic dependence was found for wavelength intervals where the average absorptance is less than 0.65. Individual rotational lines, whose parameters are often well known, were used as bases in the calculation of medium resolution spectra. Two modes of calculation were combined: well-separated rotational lines plus interaction terms, or strongly overlapping lines that were represented by a compound line of similar shape plus corrections. The 1.9- and 6.3-micron bands of H2O and the 4.3-micron band of CO2 were examined in detail and compared with experiment.
Document ID
19740056895
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Broersma, S.
Walls, W. L.
(Oklahoma, University Norman, Okla., United States)
Date Acquired
August 7, 2013
Publication Date
August 1, 1974
Publication Information
Publication: Optical Society of America
Subject Category
Physics, General
Accession Number
74A39645
Funding Number(s)
CONTRACT_GRANT: NAS8-30175
Distribution Limits
Public
Copyright
Other

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