| Scenario A: rain-on-snow | Scenario B: snow-slurry lahar | Scenario C: snowmelt lahar |  |
---|---|---|---|---|
Fluid phase | Â | Â | Â | Â |
 Water input [m] | 0.4 | 0.31 | 0 |  |
 Water input by instantaneous snowmelt [m] | 0.15 | 0 | 0.73 |  |
Solid phase | Â | Â | Â | Â |
 Snow [m] | 0 | 0.58 | 0 |  |
 Tephra [m] | 1 | 0.5 | 1.5 |  |
Total volume [m3] | 36,500 | 87,200 | 17,500 | Â |
Solid volume fraction | 0.65 | 0.78 | 0.67 | Â |
Angle of repose [°] | 33.6 | 36.3 | 33.6 |  |
Peak flow (Clay-rich flow) [m3/s] | 76 | 150 | 42 | Qp = 0.0188 V0.790 (Pierson 1998) |
Peak flow (Granular flow) [m3/s] | 49 | 96 | 28 | Qp = 0.0135 V0.780 (Pierson 1998) |
Time duration (Clay-rich flow) [s] | 966 | 1160 | 828 | 2Â V/Qp |
Time duration (Granular flow) [s] | 1494 | 1810 | 1271 | 2Â V/Qp |