Fig. 12
From: Rapid emergency assessment of ash and gas hazard for future eruptions at Santorini Volcano, Greece
Exceedance probability maps, where the contours show the probability as a percentage, for ash concentrations exceeding 2Â mg/m3 (aviation enhanced procedure zone), given fixed plume heights of 0.5, 1, 2 and 3Â km within the Santorini Weak case, as computed by the VOL-CALPUFF model. Exceedance probability maps for the smaller 0.2Â mg/m3 threshold (2010 aviation safe flying limit) show a similar pattern but with slightly larger reach, however the Airport still has a 5Â % or lower probability of exceeding the 2 mg/m3 threshold at all plume heights