“…The geometric state of ice flow has the potential to define regions of upstream stability so that, depending on the location of these limits, the degree of vulnerability of a glacier to thinning could be deduced (Felikson et al, 2017(Felikson et al, , 2021Zheng, 2022). These discoveries, based on the model of diffusive kinematic waves (Nye, 1963(Nye, , 1960Weertman and Birchfield, 1983), have used the Péclet number as a metric to define these regions (Felikson et al, 2017(Felikson et al, , 2021.…”