Characterization of composition, size, and density of atmospheric aerosols from high-resolution IR satellite measurements

Alexander Yu Zasetsky; James J. Sloan

doi:10.1117/12.508011

10 November 2003 Characterization of composition, size, and density of atmospheric aerosols from high-resolution IR satellite measurements

Alexander Yu Zasetsky, James J. Sloan

Author Affiliations +

Proceedings Volume 5151, Earth Observing Systems VIII; (2003) https://doi.org/10.1117/12.508011
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

We describe a new method for the quantitative characterization of condensed phases in the atmosphere. It uses broad band IR extinction spectra to obtain the density, size distribution, phase and the approximate composition of aerosols within a single retrieval process. The method is based on a linear least squares fitting procedure with physically-based constraints. In this report, the method is applied to the analysis of spectra measured by the Atmospheric Trace Molecule Spectroscopy (ATMOS) instrument. The volume density, size distribution and composition of the stratospheric sulfate aerosols observed in several ATMOS missions are reported. The values of these properties for aerosols observed shortly after the eruption of Mount Pinatubo in 1992 are compared with those of aerosols present at much lower levels in 1993 and 1994.

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Alexander Yu Zasetsky and James J. Sloan "Characterization of composition, size, and density of atmospheric aerosols from high-resolution IR satellite measurements", Proc. SPIE 5151, Earth Observing Systems VIII, (10 November 2003); https://doi.org/10.1117/12.508011

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