Table 2.
Eruption deposits, data sources, numbers of measurements, and parameters used in cubic B-spline case studies
| Deposit | Data source | Number of measurements | Roughness | Number of divisions (X by Y) |
|---|---|---|---|---|
| Fogo member A | Walker and Croasdale (1971) | 250 | 1 | 7 × 4 |
| Fogo 1563 | Walker and Croasdale (1971) | 229 | 1 | 6 × 3 |
| Askja 1875 Layer D | Sparks et al. (1981) | 136 | 100 | 17 × 11 |
| Taupo Plinian Pumice | Walker (1981) | 180 | 10 | 5 × 3 |
| Cerro Negro 1995 | Hill et al. (1998)a | 81 | 100 | 3 × 2 |
| El Chichon Layer B | Sigurdsson et al. (1984); Varekamp et al. (1984)a | 69 | 10 | 5 × 4 |
| Mount St Helens May 18th 1980 | Sarna-Wojcicki et al. (1981)a | 235 | 10 | 10 × 5 |