Some Aspects of the Physics of Glaciers

Abstract

The three modes of glacier flow (ice deformation, sliding, bed deformation) are described. The pattern of how-lines is deduced from the principle of mass conservation; the temperature distribution by considering heat sources and heat transfer by conduction and advection. The mechanisms of surging and of the tidewater-glacier instability are outlined. The interpretation of Heinrich Events as evidence of surges of the Laurentide Ice Sheet is critically reviewed.