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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 30 — Oct. 20, 1998
  • pp: 7008–7018

Equivalence of pyrheliometric and monochromatic aerosol optical depths at a single key wavelength

Benoı̂t Molineaux, Pierre Ineichen, and Norm O’Neill  »View Author Affiliations


Applied Optics, Vol. 37, Issue 30, pp. 7008-7018 (1998)
http://dx.doi.org/10.1364/AO.37.007008


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Abstract

The atmospheric aerosol optical depth (AOD) weighted over the solar spectrum is equal to the monochromatic AOD at a certain wavelength. This key wavelength is ∼0.7 μm, which is only slightly influenced by air mass and aerosol content. On the basis of this result, simple relations are proposed to predict monochromatic AOD from pyrheliometric data and vice versa. The accuracy achieved is close to ±0.01 units of AOD at ∼0.7 μm, estimated from simultaneous sunphotometer data. The precision required for the estimation of the precipitable water-vapor content is approximately ±0.5 cm.

© 1998 Optical Society of America

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(010.1100) Atmospheric and oceanic optics : Aerosol detection
(010.1110) Atmospheric and oceanic optics : Aerosols

History
Original Manuscript: April 24, 1998
Revised Manuscript: June 23, 1998
Published: October 20, 1998

Citation
Benoı̂t Molineaux, Pierre Ineichen, and Norm O’Neill, "Equivalence of pyrheliometric and monochromatic aerosol optical depths at a single key wavelength," Appl. Opt. 37, 7008-7018 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-30-7008

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