Sentences with phrase «ice stream beds»

We interpret high spatial variability of bedforms as indicating a complex mechanical and hydrodynamic regime at the former ice stream beds, consistent with observations from some modern ice streams.

Data from modern ice stream beds are difficult to obtain, but where ice advanced onto continental shelves during glacial periods, extensive areas of the former bed can be imaged using modern swath sonar tools.

Not exact matches

Pictures from Huygens show cobbles of ice that resemble water - worn rocks on a terrestrial stream bed.

«It was literally one of the first days that we were driving across the ice stream, doing what we thought was a pretty standard survey, that I saw the bed of the ice just dropping away,» Bingham said.

A subglacial aquifer bed model and water pressure dependent basal sliding relationship for a West Antarctic ice stream.

Fast - flowing ice streams draining the WAIS (Pine Island Glacier and Thwaites Glacier in particular) into the Amundsen Sea have a grounding line on a reverse bed slope, becoming deeper inland.

I reduced ice - bed coupling along ice streams to generate these profiles.

The gap is up to 1.4 m (60 inches) wide, and is filled with water at a pressure nearly high enough to lift the ice stream off its bed.

The thick and slow - moving interior ice reservoir is generally fixed to the underlying bedrock while the ice streams glide over lubricated beds at velocities of up to several hundred metres per year.