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Applied Optics

Applied Optics


  • Vol. 40, Iss. 6 — Feb. 20, 2001
  • pp: 866–877

Chromatic Refraction with Global Ozone Monitoring by Occultation of Stars. I. Description and Scintillation Correction

Francis Dalaudier, Valery Kan, and Alexandre S. Gurvich  »View Author Affiliations

Applied Optics, Vol. 40, Issue 6, pp. 866-877 (2001)

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We describe refractive and chromatic effects, both regular and random, that occur during star occultations by the Earth’s atmosphere. The scintillation that results from random density fluctuations, as well as the consequences of regular chromatic refraction, is qualitatively described. The resultant chromatic scintillation will produce random features on the Global Ozone Monitoring by Occultation of Stars (GOMOS) spectrometer, with an amplitude comparable with that of some of the real absorbing features that result from atmospheric constituents. A correction method that is based on the use of fast photometer signals is described, and its efficiency is discussed. We give a qualitative (although accurate) description of the phenomena, including numerical values when needed. Geometrical optics and the phase-screen approximation are used to keep the description simple.

© 2001 Optical Society of America

OCIS Codes
(010.1320) Atmospheric and oceanic optics : Atmospheric transmittance
(010.1330) Atmospheric and oceanic optics : Atmospheric turbulence
(010.4950) Atmospheric and oceanic optics : Ozone
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(290.5930) Scattering : Scintillation

Francis Dalaudier, Valery Kan, and Alexandre S. Gurvich, "Chromatic Refraction with Global Ozone Monitoring by Occultation of Stars. I. Description and Scintillation Correction," Appl. Opt. 40, 866-877 (2001)

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