Deformaton of the Ward-Hunt Ice Shelf, Northwest Territories, Canada, can be used to study the rheology of ice in the low-stress, low-strain rate regime (10-12s-1). Finite element simulations are separately displayed to demonstrate what the effects of ice salinity, ice temperature, and sea-ice back pressure have on the spreading rates of this ice shelf. We conclude that in general these effects tend to obscure any differences between the commonly used non-Newtonian flow law and the Newtonian flow law recently reinterpreted from field measurements. The numerical simulations indicate that there are specific locations where useful field measurements could be carried out on the ice shelf. |