Physics – Optics
Scientific paper
Sep 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983georl..10..885s&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 10, Sept. 1983, p. 885-888.
Physics
Optics
16
Atmospheric Optics, Clouds, Optical Radar, Optical Thickness, Radar Measurement, Volcanoes, Aerosols, Backscattering, Latitude
Scientific paper
Sun photometer and lidar backscatter measurements of the El Chichon volcanic cloud were obtained during an airborne latitude survey. The observations were collected between 46 deg N and 46 deg S from Oct. 19-Nov. 7, 1982. Comparisons between these data sets have been performed. An aerosol optical model was developed for the conversion of the lidar measurements to optical thickness values using numerical aerosol size distribution data and index of refraction information collected with coordinated dustsonde balloon flights. The derived lidar optical thickness values were found to agree with the sun photometer optical thickness values within measurement uncertainties. The lidar derived values ranged from 0.16 at the equator to 0.03 at 30 deg S latitude. Peak values were concentrated between 35 deg N and 10 deg S.
McCormick Patrick M.
Spinhirne James D.
Swissler T. J.
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