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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 18 — Jun. 20, 2001
  • pp: 3082–3091

Vertical profiles of aerosol volume from high-spectral-resolution infrared transmission measurements. I. Methodology

Annmarie Eldering, Fredrick W. Irion, Albert Y. Chang, Michael R. Gunson, Franklin P. Mills, and Helen M. Steele  »View Author Affiliations


Applied Optics, Vol. 40, Issue 18, pp. 3082-3091 (2001)
http://dx.doi.org/10.1364/AO.40.003082


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Abstract

The wavelength-dependent aerosol extinction in the 800–1250-cm-1 region has been derived from ATMOS (atmospheric trace molecule spectroscopy) high-spectral-resolution IR transmission measurements. Using models of aerosol and cloud extinction, we have performed weighted nonlinear least-squares fitting to determine the aerosol-volume columns and vertical profiles of stratospheric sulfate aerosol and cirrus cloud volume. Modeled extinction by use of cold-temperature aerosol optical constants for a 70–80% sulfuric-acid–water solution shows good agreement with the measurements, and the derived aerosol volumes for a 1992 occultation are consistent with data from other experiments after the eruption of Mt. Pinatubo. The retrieved sulfuric acid aerosol-volume profiles are insensitive to the aerosol-size distribution and somewhat sensitive to the set of optical constants used. Data from the nonspherical cirrus extinction model agree well with a 1994 mid-latitude measurement indicating the presence of cirrus clouds at the tropopause.

© 2001 Optical Society of America

OCIS Codes
(010.1100) Atmospheric and oceanic optics : Aerosol detection
(280.1100) Remote sensing and sensors : Aerosol detection
(290.1090) Scattering : Aerosol and cloud effects

History
Original Manuscript: September 5, 2000
Revised Manuscript: February 1, 2001
Published: June 20, 2001

Citation
Annmarie Eldering, Fredrick W. Irion, Albert Y. Chang, Michael R. Gunson, Franklin P. Mills, and Helen M. Steele, "Vertical profiles of aerosol volume from high-spectral-resolution infrared transmission measurements. I. Methodology," Appl. Opt. 40, 3082-3091 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-18-3082

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