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Applied Optics

Applied Optics


  • Vol. 42, Iss. 3 — Jan. 20, 2003
  • pp: 492–496

Solar aureoles caused by dust, smoke, and haze

Forrest M. Mims, III  »View Author Affiliations

Applied Optics, Vol. 42, Issue 3, pp. 492-496 (2003)

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The forward scattering of sunlight by atmospheric aerosols causes a bright glow to appear around the Sun. This phenomenon, the simplest manifestation of the solar corona, is called the solar aureole. Simple methods can be used to photograph the solar aureole with conventional and digital cameras. Aureole images permit both a visually qualitative and an analytically quantitative comparison of aureoles caused by dust, smoke, haze, pollen, and other aerosols. Many hundreds of aureole photographs have been made at Geronimo Creek Observatory in Texas, including a regular time series since September 1998. These images, and measurements extracted from them, provide an important supplement to studies of atmospheric aerosols.

© 2003 Optical Society of America

OCIS Codes
(010.1100) Atmospheric and oceanic optics : Aerosol detection
(010.1110) Atmospheric and oceanic optics : Aerosols
(010.1290) Atmospheric and oceanic optics : Atmospheric optics
(290.1090) Scattering : Aerosol and cloud effects

Original Manuscript: January 22, 2002
Revised Manuscript: March 27, 2002
Published: January 20, 2003

Forrest M. Mims, "Solar aureoles caused by dust, smoke, and haze," Appl. Opt. 42, 492-496 (2003)

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