TY - JOUR A1 - Harvey, N. J. A1 - Huntley, N. A1 - Dacre, H. F. A1 - Goldstein, M. A1 - Thomson, D. A1 - Webster, H. T1 - Multi-level emulation of a volcanic ash transport and dispersion model to quantify sensitivity to uncertain parameters JO - Nat. Hazards Earth Syst. Sci. J1 - NHESS VL - 18 IS - 1 SP - 41 EP - 63 Y1 - 2018/01/04 PB - Copernicus Publications SN - 1684-9981 UR - https://nhess.copernicus.org/articles/18/41/2018/ L1 - https://nhess.copernicus.org/articles/18/41/2018/nhess-18-41-2018.pdf DO - 10.5194/nhess-18-41-2018 ER -