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Fig. 5 | Journal of Applied Volcanology

Fig. 5

From: Rapid emergency assessment of ash and gas hazard for future eruptions at Santorini Volcano, Greece

Fig. 5

Exceedance probability curves for ash loading at the Airport for four fixed plume heights as computed by the TEPHRA2 model. Each plot shows the simulated influence of eruption flux to plume height relationships (by assuming the standard relationship of Sparks et al, 1997 for Santorini Strong or the revised Woodhouse et al, 2013 relationship that accounts for wind conditions on weak plume for Santorini Weak) and aggregation (by increasing grain sizes) on ash fall loading. The plots show results for individual eruptions of fixed plume height and so deposit loads are the same for eruptions within the Typical and Clustering variants. Similar results were found for the other key sites. Dashed lines mark the 1 g/m2 threshold, which is used to represent the onset of ash fall and reduced air quality. Note that ash loads are shown on a base 10 logarithm scale

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