Model Overview

Parameters

Notation Comparison

parameter	Weertman [1]	van der Veen [2]	Poinar [3]
ice thickness		H	H
depth	y	b	z
crevasse depth	L	d	d
depth to water surface	\(-y_0\)	a	w
average tensile stress	\(\sigma_A\)	\(R_{xx}\)	\(\sigma\)
tensile stress	\(\sigma_T\)	\(\sigma_{xx}\)	\(\sigma_y\)’
compressive hydrostatic stress	\(\sigma_C\)	L
shear modulus	G		\(\mu\)
crevasse opening displacement	D(y)		e(d,z)

[1]

Weertman (1996). Dislocation Based Fracture Mechanics

[2]

van der Veen (1998). Fracture mechanics approach to penetration of surface creasses on glaciers

[3]

Poinar et al., (2017). Drainage of southeast Greenland firn aquifer water through crevasses to the bed.