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Astrophysics and Space Science

, Volume 66, Issue 2, pp 349–352 | Cite as

Seasonal atmospheric extinction

  • J. S. Mikhail
Article

Abstract

Mean monochromatic extinction coefficients at various wavelengths at the Kottamia Observatory site have shown the existence of a seasonal variation of atmospheric extinction. The extinction of aerosol components with wavelengths at winter represent exceedingly good conditions. Spring gives the highest extinction due to aerosol.

Keywords

Seasonal Variation Extinction Coefficient Good Condition High Extinction Observatory Site 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Abbott, C. G.: 1911,The Sun, Appleton, New York.Google Scholar
  2. Hodge, P. W.: 1971,Nature 229, 549.Google Scholar
  3. Mikhail, J. S.: 1979,Helwan Obs. Bull. (in press).Google Scholar

Copyright information

© D. Reidel Publishing Co. 1979

Authors and Affiliations

  • J. S. Mikhail
    • 1
  1. 1.Helwan Institute of Astronomy and GeophysicsCairoEgypt

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