Shallow shelf approximation as a “sliding law” in a thermomechanically coupled ice sheet model
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چکیده
منابع مشابه
The shallow shelf approximation as a “sliding law” in a thermomechanically coupled ice sheet model
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 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 i...
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[1] The shallow shelf approximation, a balance of membrane stresses for ice flow, is an effective ‘‘sliding law’’ for ice sheet modeling. Our use of it as a sliding law becomes a standard model for ice stream flow when the sliding velocity is large (100 m a 1 and faster). Following Schoof (2006a), we describe the basal resistance as plastic till for which the yield stress is given by a Mohr-Cou...
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ژورنال
عنوان ژورنال: Journal of Geophysical Research
سال: 2009
ISSN: 0148-0227
DOI: 10.1029/2008jf001179