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Table 3 Computational and input parameters

From: Effects of eruption source parameter variation and meteorological dataset on tephra fallout hazard assessment: example from Vesuvius (Italy)

Description Reference Variation range
Total mass 5 × 1011 kg 1011– 1012 kg
Column height 18 km 12 – 22 km
Horizontal diffusion coefficient 5000 m2/s 1000 – 10000 m2/s
Column shape (Suzuki coefficient) 4 unchanged
Meteorological data ERA Interim see Table 1
Settling velocity distribution VSET-2008 VSET–1990, –79, –1631,–2008
Grid spacing 400 × 400 m unchanged