Acoustic impedance and basal shear stress beneath four Antarctic ice streams

• Published in: Annals of Glaciology
• Main Authors: Vaughan, David G., Smith, Andrew M., Nath, P. Chandrika, Le Meur, Emmanuel
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: International Glaciological Society 2003
• Subjects: Glaciology; Antarctic; Carlson Inlet; Evans Ice Stream; Rutford; Rutford Ice Stream; Talutis Inlet; Annals of Glaciology; Antarc*; Antarctica
• Online Access: http://nora.nerc.ac.uk/id/eprint/13003/

The acoustic impedance of the subglacial material beneath 7.2 km profiles on four ice streams in Antarctica has been measured using a seismic technique. The ice streams span a wide range, of dynamic conditions with flow rates of 35-464 in a(-1). The acoustic impedance indicates that poorly lithified...