|
Model parameter (units)
|
Input value or range
|
Unit Y
|
Unit W
|
Unit U
|
Unit S
|
Unit P
|
Unit W-Y
|
|---|
|
Volcano
| | | | | | | |
|
Easting (m)
|
645,110
| | | | | | |
|
Northing (m)
|
2,158,088
| | | | | | |
|
Elevation (m asl)
|
3850
| | | | | | |
|
Total eruption mass (kg)
|
108–1013
|
3.5 × 1011
|
2.8 × 1011
|
1 × 1011
|
1.2 × 1011
|
1.9 × 1011
|
1.2 × 1012
|
|
Eruption column
| | | | | | | |
|
Height (km asl)
|
10–30
|
30
|
29
|
28
|
29
|
29
|
26
|
|
Integration steps
|
60
| | | | | | |
|
Shape parameter (α)
|
1.0
|
1
|
1
|
1
|
1
|
1
|
1
|
|
Shape parameter (β)
|
0.001–7.0
|
1.5
|
0.9
|
1.2
|
3.9
|
4.3
|
2.8
|
|
Particle
| | | | | | | |
|
Median (φ)
|
−3 – 0
|
−1
|
0
|
−0.5
|
−1.5
|
−1.6
|
0
|
|
Standard deviation (φ)
|
1–2
|
1
|
1
|
1
|
1.2
|
1
|
1.8
|
|
Maximum (φ)
|
−6
| | | | | | |
|
Minimum (φ)
|
6
| | | | | | |
|
Lithic density (kg m−3)
|
2700
| | | | | | |
|
Pumice density (kg m− 3)
|
450
| | | | | | |
|
Fall time threshold (s)
|
103–109
|
4.7 × 107
|
9.9 × 108
|
9.9 × 108
|
1.2 × 107
|
6.4 × 105
|
10 × 103
|
|
Integration steps
|
60
| | | | | | |
|
Atmosphere
| | | | | | | |
|
Eddy constant (m2 s−1)
|
0.04
| | | | | | |
|
Diffusion coefficient (m2 s− 1)
|
500–5000
|
4903
|
3995
|
4995
|
2388
|
1652
|
5000
|
