Table 1 Total discharged mass estimation using the single isopach method (Hayakawa 1985) for each isopleth contour line
Contour (g/m2) | Thickness (m) | Area (m2) | Discharged mass (t) |
|---|---|---|---|
1 | 6.7 × 10−7 | 1.2 × 109 | 1.0 × 104 |
2 | 1.3 × 10−6 | 5.3 × 108 | 8.6 × 10 3 (min) |
4 | 2.7 × 10−6 | 3.1 × 108 | 1.0 × 104 |
8 | 5.3 × 10−6 | 2.0 × 108 | 1.3 × 104 |
16 | 1.1 × 10−5 | 1.3 × 108 | 1.7 × 104 |
32 | 2.1 × 10−5 | 8.6 × 107 | 2.2 × 104 |
64 | 4.3 × 10−5 | 6.5 × 107 | 3.4 × 104 |
128 | 8.5 × 10−5 | 5.2 × 107 | 5.4 × 104 |
256 | 1.7 × 10−4 | 4.1 × 107 | 8.5 × 104 |
512 | 3.4 × 10−4 | 2.9 × 107 | 1.2 × 105 |
1024 | 6.8 × 10−4 | 1.9 × 107 | 1.6 × 105 |
15,000 | 1.0 × 10−2 | 1.0 × 107 | 1.2 × 106 |
75,000 | 5.0 × 10−2 | 3.5 × 106 | 2.2 × 106 |
150,000 | 0.1 | 1.8 × 106 | 2.2 × 106 |
450,000 | 0.3 | 6.7 × 105 | 2.5 × 10 6 (max) |
750,000 | 0.5 | 3.0 × 105 | 1.8 × 106 |
1,500,000 | 1.0 | 4.7 × 104 | 5.7 × 105 |