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Technical report series on global modeling and data assimilation. Volume 3 : An efficient thermal infrared radiation parameterization for use in general circulation models

Author:
Suarex, Max J.
Published:
Nov 1, 1994.
Physical Description:
1 electronic document
Additional Creators:
Chou, Ming-Dah
Online Version

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Restrictions on Access:
Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary:
A detailed description of a parameterization for thermal infrared radiative transfer designed specifically for use in global climate models is presented. The parameterization includes the effects of the main absorbers of terrestrial radiation: water vapor, carbon dioxide, and ozone. While being computationally efficient, the schemes compute very accurately the clear-sky fluxes and cooling rates from the Earth's surface to 0.01 mb. This combination of accuracy and speed makes the parameterization suitable for both tropospheric and middle atmospheric modeling applications. Since no transmittances are precomputed the atmospheric layers and the vertical distribution of the absorbers may be freely specified. The scheme can also account for any vertical distribution of fractional cloudiness with arbitrary optical thickness. These features make the parameterization very flexible and extremely well suited for use in climate modeling studies. In addition, the numerics and the FORTRAN implementation have been carefully designed to conserve both memory and computer time. This code should be particularly attractive to those contemplating long-term climate simulations, wishing to model the middle atmosphere, or planning to use a large number of levels in the vertical.
Other Subject(s):
Collection:
NASA Technical Reports Server (NTRS) Collection.
Note:
Document ID: 19950009331.
Accession ID: 95N15745.
NASA-TM-104606-VOL-3.
NAS 1.15:104606-VOL-3.
REPT-95B00011-VOL-3.
Terms of Use and Reproduction:
No Copyright.
View MARC record | catkey: 15656083