An area of pack ice is subject to shear when the ice motion varies significantly in the direction normal to the motion, subjecting the ice to rotational forces. These forces may result in phenomena si
milar to a flaw.
Sea ice terminology. An area of floating ice is subject to shear when the ice motion varies significantly from its main direction, subjecting the ice to rotational forces. These forces may result in p
henomena similar to a flaw.
A zone of severe deformation, especially where a fast-flowing ice stream (q.v.) moves past relatively slow-moving ice. The deformation is characterised especially by intense crevassing.