Computer Science
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988jqsrt..40...51n&link_type=abstract
Journal of Quantitative Spectroscopy and Radiative Transfer (ISSN 0022-4073), vol. 40, July 1988, p. 51-69.
Computer Science
139
Approximation, Atmospheric Scattering, Earth Atmosphere, Solar Flux Density, Algorithms, Delta Function, Legendre Functions, Optical Thickness, Radiative Transfer, Transfer Functions, Truncation Errors
Scientific paper
The efficiency of numerical calculations is discussed for selected algorithms employing the discrete ordinate method and the truncation approximation for the solar radiative intensity in moderately thick, plane-parallel scattering atmospheres. It is found that truncation of the phase function causes a significant error in the computed intensity and the magnitude of this error depends significantly on how the intensity is retrieved from the truncated radiative transfer equation. A newly developed retrieval algorithm, the IMS-method, yields the intensity field with an error less than about 1 percent when the number of discrete paths is as small as 10 in the hemisphere for aerosol-laden atmospheres with optical thickness less than about 1.
Nakajima Tatsuya
Tanaka Masao
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