Figure 3 . Conditions at Crane Glacier compared to process model
cliff-failure thresholds. (Left) Cliff-height failure criteria required
to trigger MICI (see Text S1; Figure S6, S7), including subaerial cliff
height (Hc), bed slope\(\left(\frac{\text{db}}{\text{dx}}\right)\), ice thickness gradient\(\left(\frac{\text{dH}}{\text{dx}}\right)\), and timescale of ice
shelf collapse (Tcollapse), with conditions we observe
at Crane Glacier provided. (Right) Schematic diagram comparing cliff
heights required for brittle failure under strong (S) and weak (W) model
treatment of ice, if included in referenced work (with the model
authors’ preferred estimate marked with a solid line).