Figure 9

Main characteristics of debris avalanche deposits for the dolomieu (blue) and topA2 (orange) scenarios. Varying friction coefficient are tested (from δ = 7° to δ = 16°). (a) Runout, i.e. maximum distance between the highest point in the collapse structure prior to collapse and flow front. (b) Covered area. (c) Mobile volume, i.e. volume of the material leaving the collapse structure (d) Heim’s ratio (crosses) and effective friction coefficient (squares). Values on the right y-axis in (d) and top x-axis are the angles δ in degrees, matching μ on the opposite axis, such that μ = tan(δ). Error bars in (a) and (d) display the maximum, minimum and mean value derived following the methodology presented in the body of the text.