Approximate computation model of clear sky spectral luminance

su yi; wan min; hu xiao-yang; yang rui; leng jie; zheng jie

Volume 17 Issue 10

Oct. 2005

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Article Navigation > High Power Laser and Particle Beams > 2005 > 17(10): 0-

zhang mei, wang kuilu, wei fuli, et al. Time response of large-core step-index fiber transmission system with scintillator illumination[J]. High Power Laser and Particle Beams, 2009, 21.

Citation:

su yi, wan min, hu xiao-yang, et al. Approximate computation model of clear sky spectral luminance[J]. High Power Laser and Particle Beams, 2005, 17.

zhang mei, wang kuilu, wei fuli, et al. Time response of large-core step-index fiber transmission system with scintillator illumination[J]. High Power Laser and Particle Beams, 2009, 21.

Citation:

su yi, wan min, hu xiao-yang, et al. Approximate computation model of clear sky spectral luminance[J]. High Power Laser and Particle Beams, 2005, 17.

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Approximate computation model of clear sky spectral luminance

1.
Institute of Applied Electronics,CAEP,P.O.Box 919-1001,Mianyang 621900,China

Publish Date: 2005-10-15

Abstract

Abstract

Based on radiative transfer equation, using the experiential formulae of air mass and atmospheric aerosol optical depth and atmospheric molecule parameters obtained by HITRAN database, an approximate algorithm for clear sky spectral luminance was given, which could be used generally. Clear sky spectral luminance was computed by the approximate algorithm model. Computation results indicate that there are distinct absorption lines of O2 and H2O on the curve of clear sky spectral luminance. The luminance of clear sky radiation is higher at shortwave band, while the spectrum for small sun angle shifts to longer waveband. The sky radiation luminance adjacent to horizon is higher.
- sky radiation,
- spectral luminance,
- computation model,
- optical depth

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