Computer Science
Scientific paper
Oct 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996spie.2828..503h&link_type=abstract
Proc. SPIE Vol. 2828, p. 503-514, Image Propagation through the Atmosphere, J. C. Dainty; Luc R. Bissonnette; Eds.
Computer Science
Scientific paper
We show that an effective scattering radius r(subscript s) and aerosol extinction coefficient at a wavelength of 3.8 micrometer (alpha) (subscript e) (3.8 micrometer) can be estimated from the simultaneous measurement of visible and 10.6 micrometer extinction in haze and fog. For fog, functions relating r(subscript s) and (alpha) (subscript e) (3.8 micrometer) to the ratio of 10.6 micrometer to 0.55 micrometer extinction were derived based on accepted size distribution models for clouds and fog. For haze, functions for r(subscript s) and (alpha) (subscript e) (3.8 micrometer) were based on an analysis of measured aerosol size distributions. We compare values of r(subscript s) and (alpha) (subscript e) (3.8 micrometer) derived from measurements of local visible and 10.6 micrometer aerosol extinction to values obtained from aerosol size spectra. We conclude that measurements of visible and 10.6 micrometer aerosol extinction provide useful additional information about the aerosol.
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