I wonder how much this new map will effect model predictions of ice velocity and dynamic mass balance. Ice thickness measurements are important for calculating the stresses required to model ice velocity, and these are in turn relevant to predictions for the ice sheet's future because they affect how the ice might respond, for example, to increased melting at either the surface or coastal margins.
I would also be interested in seeing simple calcs of hydraulic potential with the new bed geometry. I wonder if water is still routed along this canyon?
Almost certainly. They even say so in the article. Most glacial melt flow is subsurface - disappears down a moulin and flows out under the overhanging shelf, accelerating melt. Feedbacktastic.
Seems that in some parts of the upper canyon, the ice configuration likely leads water away, but in the lower part, it controls the direction of water flow.
I would also be interested in seeing simple calcs of hydraulic potential with the new bed geometry. I wonder if water is still routed along this canyon?