Fig. 8From: An automated ash dispersion forecast system: case study Popocatépetl volcano, MexicoEruption 19:49 UTC 14 August, 2019. Observed ash, red polygon according to the Washington-VAAC. Forecasted ash concentration, coloured area in mg/m3 (see legend). VAAC image taken from the VAAC-Washington webpageBack to article page