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On June 4th, 2011, the Puyehue-Cordon Caulle volcanic complex (40°35′25″S 72°07′02″W, Chile) started eruption, sending ash 45,000 feet into the atmosphere. After the initial period, the eruption continued for several months, with less intensity. Changes in global irradiance in the UV-B and UV-A, and direct irradiance and AOD in the UV-A, as consequence of the eruption, were studied. Global irradiance...
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