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Record Details

Record 41 of 29713
Infrared radiation models for atmospheric methane
Author and Affiliation:
Cess, R. D.(State Univ. of New York, Stony Brook, NY, United States)
Kratz, D. P.(State Univ. of New York, Stony Brook, NY, United States)
Caldwell, J.(New York, State University, Stony Brook, United States)
Kim, S. J.(NASA Goddard Space Flight Center, Greenbelt, MD)
Abstract: Mutually consistent line-by-line, narrow-band and broad-band infrared radiation models are presented for methane, a potentially important anthropogenic trace gas within the atmosphere. Comparisons of the modeled band absorptances with existing laboratory data produce the best agreement when, within the band models, spurious band intensities are used which are consistent with the respective laboratory data sets, but which are not consistent with current knowledge concerning the intensity of the infrared fundamental band of methane. This emphasizes the need for improved laboratory band absorptance measurements. Since, when applied to atmospheric radiation calculations, the line-by-line model does not require the use of scaling approximations, the mutual consistency of the band models provides a means of appraising the accuracy of scaling procedures. It is shown that Curtis-Godson narrow-band and Chan-Tien broad-band scaling provide accurate means of accounting for atmospheric temperature and pressure variations.
Publication Date: Aug 20, 1986
Document ID:
19870027233
(Acquired Nov 28, 1995)
Accession Number: 87A14507
Subject Category: GEOPHYSICS
Document Type: Journal Article
Publication Information: Journal of Geophysical Research (ISSN 0148-0227); 91; 9857-986
Publisher Information: United States
Contract/Grant/Task Num: NSF ATM-85-15310; NSG-7320
Financial Sponsor: NASA; United States
Organization Source: State Univ. of New York; Stony Brook, NY, United States
NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 8p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ABSORPTANCE; AIR POLLUTION; ATMOSPHERIC COMPOSITION; INFRARED SPECTRA; METHANE; TRACE ELEMENTS; GREENHOUSE EFFECT; MAN ENVIRONMENT INTERACTIONS; SPECTRAL BANDS; SPECTRAL LINE WIDTH
Imprint And Other Notes: Journal of Geophysical Research (ISSN 0148-0227), vol. 91, Aug. 20, 1986, p. 9857-9864.
Availability Source: Other Sources
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