Physics – Optics
Scientific paper
Sep 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983georl..10..881s&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 10, Sept. 1983, p. 881-884.
Physics
Optics
25
Atmospheric Optics, Clouds, Latitude, Optical Thickness, Volcanoes, Aerosols, Airborne Equipment, Photometers, Solar Instruments
Scientific paper
Sun photometer measurements of the spectral optical thickness of the El Chichon eruption cloud were obtained during an airborne latitudinal survey. The measured optical thicknesses were greatly enhanced over background levels for the stratosphere. The observations covered 44 deg N to 36 deg S, and increased optical thickness was found at all latitudes where measurements were made. Significant variations in the magnitude and spectral dependence of the optical thickness were found within the latitude range covered by the observations. The maximum optical thickness was found at 20 deg N and the minimum was found at 30 deg S. The optical thickness values ranged between 0.13 and 0.017 at 870 nm and between 0.15 and 0.044 at 440 nm.
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