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21 February 2001 Properties of stratospheric aerosol estimated from HALOE data
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Abstract
Extinction coefficients for stratospheric aerosols at 8 HALOE wavelengths are determined by comparing transmittances data for two adjacent solar occultation measurements, where one limb path is loaded with aerosols but the other path is free of aerosols. These extinction coefficients are used to infer the aerosol properties such as composition and size distribution parameters. Mie theory has been used to calculate the extinction coefficients, and a nonlinear least square method is applied to determine the aerosol properties. Sixteen cases are selected for the retrieval in southern hemisphere at latitudes from 21 to 48 degrees S for the period of 29 Mar - 31 May 1992. Retrieved size width ranges from 1.1 to 1.5 and radius ranges from 0.25 to 0.45 micrometer. These size parameters are within the ranges of in situ measurements at Laramie, Wyoming. Retrieved weight % of H2SO4 is larger than the equilibrium value by about 5 to approximately 10 weight %, similar to the results for northern hemisphere at latitudes 20 to 55 degree N for the period from Nov 1991 to Feb 1992.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kwang-Mog Lee, Jae H. Park, Steven T. Massie, and Wookap Choi "Properties of stratospheric aerosol estimated from HALOE data", Proc. SPIE 4150, Optical Remote Sensing of the Atmosphere and Clouds II, (21 February 2001); https://doi.org/10.1117/12.416991
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