Table 1 Initial conditions for the reference numerical simulation of the Etna 122 BC Plinian eruption, for the excess H2O and CO2 runs, for the sensitivity analysis, and for external increase in H2O and CO2 (due to interaction with an external volatile source).
From: Role of volatiles in highly explosive basaltic eruptions
Parameter | Initial conditions for the Etna 122 BCE test case eruption | |||||
|---|---|---|---|---|---|---|
Reference value | Excess H2O | Excess CO2 | Sensitivity Analysis | External H2O | External CO2 | |
Inlet pressure [MPa] | 160 | 160 | 160 | 140–180 | 191 | 229 |
Inlet temperature [°C] | 1060 | 1060 | 1060 | 1030–1130 | 1060 | 1060 |
Total H2O content [wt.%] | 3.0 | 6.0; 10.0 | 3.0 | 1–10 | 4.0 | 3.0 |
Total CO2 content [wt.%] | 0.9 | 0.9 | 6.0; 10.0 | 0.1–10 | 0.9 | 1.9 |
Initial crystal fraction [vol.%] | ∼10 | ∼10 | ∼10 | 0–20 | ∼10 | ∼10 |
Conduit radius [m] | 35 | 35 | 35 | 10–50 | 35 | 35 |
Conduit length [m] | 6000 | 6000 | 6000 | 6000 | 6000 | 6000 |
