From Glossary of Meteorology
Revision as of 17:55, 25 April 2012 by imported>Perlwikibot
(Also called circumsolar radiation.) Radiation scattered out of the direct solar beam is often forward peaked, especially when the scattering is caused by dust.
Therefore, the scattered radiation is concentrated at small angles close to the sun. This aureole phenomenon provides a sensitive measure of dust loading in the atmosphere.
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