Investigations of Rutford Ice Stream using DELORES (the BAS DEep-LOoking Radio-Echo Sounder)

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• Dr Ed King, British Antarctic Survey
• Tuesday 19 June 2007, 16:00-17:00
• British Antarctic Survey.

If you have a question about this talk, please contact Deb Shoosmith.

Open to non-BAS; please contact Deb Shoosmith (drsho@bas.ac.uk or 221702) if you would like to attend.

Ice streams are the principal drainage features of the Antarctic ice sheet, channeling 90% of the ice flow from the interior to the coast. Rutford Ice Stream in West Antarctica drains a catchment to the north and west of the Ellsworth Mountains. The ice divide between the catchments of Rutford Ice Stream and Pine Island Glacier is poorly defined in places and is a location where we might expect significant change to flow regimes in the future. I used the British Antarctic Survey’s DELORES (Deep Look Radio Echo Sounder) radar system to map isochronal layering and the ice stream bed on several traverses of the onset region of Rutford Ice Stream. This talk has two strands: 1) to describe the present flow regime in the onset region of Rutford Ice Stream, near to the ice divide; and 2) to describe the development of bedforms as the ice flow speed increases through the region.

This talk is part of the British Antarctic Survey series.

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