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Video: Ulawan Eruption: 2023

GIF Animation

SO2 mass from the Ulawan eruption on 11/20 and 11/21 2023.

The green contours show airborne volcanic ash (VA) as qualitative UV Aerosol Index (1 to 10), which is proportional to ash concentration and height. Most of the VA falls out near the volcano, but some fine ash fraction is transported together with SO2 gas by upper tropospheric winds away from the volcano and poses a danger to aircraft.