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Computation of atmospheric cooling rates by exact and approximate methodsInfrared fluxes and cooling rates for several standard model atmospheres, with and without water vapor, carbon dioxide, and ozone, have been calculated using a line-by-line method at 0.01/cm resolution. The sensitivity of the results to the vertical integration scheme and to the model for water vapor continuum absorption is shown. Comparison with similar calculations performed at NOAA/GFDL shows agreement to within 0.5 W/sq m in fluxes at various levels and 0.05 K/d in cooling rates. Comparison with a fast, parameterized radiation code used in climate models reveals a worst case difference, when all gases are included, of 3.7 W/sq m in flux; cooling rate differences are 0.1 K/d or less when integrated over a substantial layer with point differences as large as 0.3 K/d.
Document ID
19910053656
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Ridgway, William L.
(Applied Research Corp. Landover, MD, United States)
HARSHVARDHAN
(Purdue University West Lafayette, IN, United States)
Arking, Albert
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 15, 2013
Publication Date
May 20, 1991
Publication Information
Publication: Journal of Geophysical Research
Volume: 96
ISSN: 0148-0227
Subject Category
Meteorology And Climatology
Accession Number
91A38279
Funding Number(s)
CONTRACT_GRANT: NSF ATM-89-09870
CONTRACT_GRANT: NAS5-30430
CONTRACT_GRANT: NAG5-1088
Distribution Limits
Public
Copyright
Other

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