ABSTRACT
Processes of glacial erosion, debris entrainment and transport, and deposition depend on the behaviour of ice, sediment and rock materials on, within, beneath, around and in front of glaciers. Conditions at the ice/bedrock interface are of critical importance to the operation of glacial processes but, at depth beneath modern glaciers, prove difficult for investigation in comparison with observations that are easily achieved in supraglacial and ice-marginal locations.
