Physics – Geophysics
Scientific paper
2008-10-20
J. Geophys. Res. 114, F03008, 2009
Physics
Geophysics
12 pages of text; 4 tables; 27 figures; submitted to JGR Earth Surface
Scientific paper
10.1029/2008JF001179
The shallow shelf approximation is a better ``sliding law'' for ice sheet modeling than those sliding laws in which basal velocity is a function of driving stress. The shallow shelf approximation as formulated by \emph{Schoof} [2006a] is well-suited to this use. Our new thermomechanically coupled sliding scheme is based on a plasticity assumption about the strength of the saturated till underlying the ice sheet in which the till yield stress is given by a Mohr-Coulomb formula using a modeled pore water pressure. Using this scheme, our prognostic whole ice sheet model has convincing ice streams. Driving stress is balanced in part by membrane stresses, the model is computable at high spatial resolution in parallel, it is stable with respect to parameter changes, and it produces surface velocities seen in actual ice streams.
Brown Jed
Bueler Ed
No associations
LandOfFree
The shallow shelf approximation as a "sliding law" in a thermomechanically coupled ice sheet model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The shallow shelf approximation as a "sliding law" in a thermomechanically coupled ice sheet model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The shallow shelf approximation as a "sliding law" in a thermomechanically coupled ice sheet model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-265159