From: Global database on large magnitude explosive volcanic eruptions (LaMEVE)
VOLUME DATA QUALITY INDICATOR | |
---|---|
VALUE | DESCRIPTION |
0 | No isopach map or evidence to support cited volume OR assumed value. |
1 | Simple isopach map or thickness data (< 10 measurements) OR volume calculation with no methodology given OR volume derived from method other than isopach map (e.g. size of caldera; VEI estimate; duration and intensity of column heights). |
2 | Isopach map drawn from >10 and <30 measured thicknesses with calculation method described. |
3 | Isopach map drawn from >30 measured thicknesses with calculation method described. |