Parametric models of shortwave radiation transfer in the inhomogeneous Earth's atmosphere

T. Yu. Chesnokova; Andrei B. Serebrennikov

doi:10.1117/12.411926

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29 December 2000 Parametric models of shortwave radiation transfer in the inhomogeneous Earth's atmosphere

T. Yu. Chesnokova, Andrei B. Serebrennikov

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Proceedings Volume 4341, Seventh International Symposium on Atmospheric and Ocean Optics; (2000) https://doi.org/10.1117/12.411926
Event: 7th International Symposium on Atmospheric and Ocean Optics, 2000, Tomsk, Russian Federation

Abstract

To solve the problem, connected with wide-band light fluxes transfer through multi-component scattering medium like the Earth's atmosphere, an extensive information on optical properties and, in particular, absorption spectra of its components is required, as well as a development of efficient methods taking into account the molecular absorption in solving the transfer equations. To eliminate the limitations imposed by model interpretation of absorption bands, the 'k- distribution' method is gathering force in recent years, which offers a convenient parameterization of the absorption functions in the form of exponential series. This method gives the calculation accuracy comparable with that obtained by the direct method. In this work, the 'k-distribution' method is applied to the case of overlapping the absorption bands in some inhomogeneous medium. The test calculations of short-wave radiation fluxes were conducted by this method both regarding for the molecular and aerosol scattering and ignoring it. The obtained results well agree with those obtained by the direct 'line-by-line' method.

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T. Yu. Chesnokova and Andrei B. Serebrennikov "Parametric models of shortwave radiation transfer in the inhomogeneous Earth's atmosphere", Proc. SPIE 4341, Seventh International Symposium on Atmospheric and Ocean Optics, (29 December 2000); https://doi.org/10.1117/12.411926

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