OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 5, Iss. 5 — May. 1, 1966
  • pp: 787–792

Zenith Skylight Intensity and Color during the Total Solar Eclipse of 20 July 1963

William E. Sharp, John W. F. Lloyd, and S. M. Silverman  »View Author Affiliations


Applied Optics, Vol. 5, Issue 5, pp. 787-792 (1966)
http://dx.doi.org/10.1364/AO.5.000787


View Full Text Article

Enhanced HTML    Acrobat PDF (874 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

The zenith skylight intensity was measured, with a resolution of 10 Å, over the wavelength range from 5200 Å to 6400 Å during a total solar eclipse at Hermon, Maine. The intensity was found to change by about two orders of magnitude in the 2-min period before totality and reached a minimum during totality of 19.5 kR/Å at 5200 Å. The spectral distribution remained that of the day sky until the sun was more than 99.8% obscured. During totality, the shorter wavelengths were enhanced, indicating a shift to the blue in sky color. Comparisons with an independent measurement from an aircraft show that the intensity scale height of the secondary scattered component, predominating at totality, is significantly less than that of the day sky. The measurements are compared with the day and twilight sky.

© 1966 Optical Society of America

History
Original Manuscript: December 20, 1965
Published: May 1, 1966

Citation
William E. Sharp, John W. F. Lloyd, and S. M. Silverman, "Zenith Skylight Intensity and Color during the Total Solar Eclipse of 20 July 1963," Appl. Opt. 5, 787-792 (1966)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-5-5-787


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. E. Halley, Phil. Trans. Roy. Soc. London 20, 245 (1715).
  2. R. Grant, as quoted by J. Q. Stewart, C. D. MacCracken, in Astrophys. J. 91, 51 (1940). [CrossRef]
  3. A. E. Kennelly, J. Franklin Inst. 150, 137 (1900).
  4. W. de W. Abney, T. E. Thorpe, Phil Trans. Roy Soc. London 180, 363 (1889). [CrossRef]
  5. W. de W. Abney, T. E. Thorpe, Phil. Trans. Roy Soc. London 187, 433 (1896). [CrossRef]
  6. C. Fabry, Compt. Rend. 141, 870 (1905).
  7. B. Walter, F. Goos, Z Physik 13, 564 (1912).
  8. J. Elster, H. Geitel, Z. Physik 13, 852 (1912).
  9. J. Kunz, J. Stebbins, Proc. Am. Phil. Soc. 50, 269 (1919).
  10. H. T. Stetson, W. Arnold, J. Johnson, Astrophys. J. 74, 122 (1931). [CrossRef]
  11. “Measurements of Sky Brightness,” Trans. Illum. Eng. Soc. New York 20, 583 (1925).
  12. C. H. Sharp, S. McK. Gray, W. F. Little, H. J. Eckweiler, J. Opt. Soc. Am. 23, 234 (1933). [CrossRef]
  13. J. Hargreaves, J. Roy. Astron. Soc. Canada 43, 229 (1949).
  14. A. S. E. Ackermann, Nature 120, 83 (1927). [CrossRef]
  15. The staff of the Photometry Department of the National Physical Laboratory, “The Variation of Natural Light During the Total Eclipse of the Sun on June 29th, 1927,” I. Eng. 21, 198 (1928).
  16. R. A. Richardson, E. O. Hulbert, J. Geophys. Res. 54, 215 (1949). [CrossRef]
  17. C. C. Batchelder, K. Batchelder, R. Hargreaves, J. Hargreaves, Astrophys. J. 123, 9 (1956). [CrossRef]
  18. E. O. Hulburt, Nat. Geoph. Soc. Contrib. Techn. Pap., Solar Eclipse Ser. No. 2, 78 (1942).
  19. N. Betenska, J. Brit. Astron. Assoc. 54, 124 (1944).
  20. N. S. Orlova, Leningrad, Universitet. Uchenyye Zapiska, No. 132105 (1949) as abstracted in A. I. D. Rept. B-64–20.
  21. N. S. Orlova, Leningrad, Universitet. Uchenyye Zapiska, No. 190105 (1957) as Abstracted in A. I. D. Rept. B-64–20.
  22. W. D. Wright, The Measurement of Colour (D. Van Nostrand Company, Inc., Princeton, N. J., 1964), p. 258.
  23. Rayleigh, (R.J.S.), Gerlands Beitr. Geophys. 19, 292 (1928).
  24. C. S. Deehr, M. H. Rees, Planetary Space Sci. 12, 875 (1964). [CrossRef]
  25. J. F. Noxon, T. P. Markham, J. Geophys. Res. 68, 6059 (1963). [CrossRef]
  26. M. J. Koomen, D. M. Packer, R. Tousey, in The Airglow and the Aurorae, A. Dalgarno, E. B. Armstrong, Eds. (Pergamon Press, Ltd., London, 1956).
  27. J. G. Moore, in Proceedings of Project APEQS Symposium (Douglas Aircraft Company, Santa Monica, Calif., 1964), p. 43.
  28. W. G. Fastie, H. M. Crosswhite, T. P. Markham, Ann. Geophys. 17, 109 (1961).
  29. F. Volz, “Twilight Intensity at 20° Elevation,” AF 19-(640)4546 Scientific Report No. 2 (1961).
  30. J. W. F. Lloyd, S. Silverman, L. J. Nardone, B. L. Cochrun, Appl. Opt. 4, 1602 (1965). [CrossRef]
  31. S. D. Elliott, in Proceedings of Project APEQS Symposium (Douglas Aircraft Company, Santa Monica, Calif.1964), p. 37.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited