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Applied Optics

Applied Optics


  • Vol. 41, Iss. 21 — Jul. 20, 2002
  • pp: 4234–4244

New method for simultaneous gas and aerosol retrievals from space limb-scanning spectral observation of the atmosphere

Sergey Oshchepkov, Yasuhiro Sasano, and Tatsuya Yokota  »View Author Affiliations

Applied Optics, Vol. 41, Issue 21, pp. 4234-4244 (2002)

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This study concerns the development of a new inversion method for simultaneous gas and aerosol retrievals in the upper layers of the atmosphere from limb-viewing multiwavelength-transmission infrared measurements. In this method, concentrations of gas species such as O3, NO2, HNO3, N2O, CH4, and H2O, and spectral dependences of the aerosol extinction coefficient are retrieved simultaneously. When this is done, smoothness constraints on the desired spectral dependencies of the aerosol extinction coefficient are used as an a priori assumption. The method is used in the treating of synthetic transmission spectra of the Improved Limb Atmospheric Spectrometer, which is based on the solar occultation technique and was on board the Advanced Earth Observing Satellite. A set of numerical tests shows the efficiency of the method.

© 2002 Optical Society of America

OCIS Codes
(010.1320) Atmospheric and oceanic optics : Atmospheric transmittance
(280.1100) Remote sensing and sensors : Aerosol detection
(280.1310) Remote sensing and sensors : Atmospheric scattering
(290.1090) Scattering : Aerosol and cloud effects

Original Manuscript: June 5, 2001
Revised Manuscript: December 14, 2001
Published: July 20, 2002

Sergey Oshchepkov, Yasuhiro Sasano, and Tatsuya Yokota, "New method for simultaneous gas and aerosol retrievals from space limb-scanning spectral observation of the atmosphere," Appl. Opt. 41, 4234-4244 (2002)

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