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Infrared radiation parameterizations for the minor CO2 bands and for several CFC bands in the window regionFast and accurate parameterizations have been developed for the transmission functions of the CO2 9.4- and 10.4-micron bands, as well as the CFC-11, CFC-12, and CFC-22 bands located in the 8-12-micron region. The parameterizations are based on line-by-line calculations of transmission functions for the CO2 bands and on high spectral resolution laboratory measurements of the absorption coefficients for the CFC bands. Also developed are the parameterizations for the H2O transmission functions for the corresponding spectral bands. Compared to the high-resolution calculations, fluxes at the tropopause computed with the parameterizations are accurate to within 10 percent when overlapping of gas absorptions within a band is taken into account. For individual gas absorption, the accuracy is of order 0-2 percent. The climatic effects of these trace gases have been studied using a zonally averaged multilayer energy balance model, which includes seasonal cycles and a simplified deep ocean. With the trace gas abundances taken to follow the Intergovernmental Panel on Climate Change Low Emissions 'B' scenario, the transient response of the surface temperature is simulated for the period 1900-2060.
Document ID
Document Type
Reprint (Version printed in journal)
Kratz, David P. (Lockheed Engineering and Sciences Co. Hampton, VA, United States)
Chou, Ming-Dah (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Yan, Michael M.-H. (Science Systems and Applications, Inc. Lanham, MD, United States)
Date Acquired
August 16, 2013
Publication Date
July 1, 1993
Publication Information
Publication: Journal of Climate
Volume: 6
Issue: 7
ISSN: 0894-8755
Subject Category
Distribution Limits