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Table 2 Grain size and particle density distribution used to produce the settling velocity distribution “VSET-2008” reported in Fig. 5 d. Particle densities are from Macedonio et al. (1990)

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

Φ Total Juveniles Lithics
  wt% Density wt% Density wt%
−5 1 1400 80 2600 20
−4 4 1400 80 2600 20
−3 7 1400 80 2600 20
−2 6 1400 80 2600 20
−1 6 1400 80 2600 20
0 12 1700 80 2600 20
1 17 1700 80 2600 20
2 10 2300 80 2600 20
3 6 2300 80 2600 20
4 7 2500 80 2600 20
5 9 2500 80 2600 20
6 9 2500 80 2600 20
7 5 2500 80 2600 20
8 1 2500 80 2600 20