Sub-seasonal changes observed in subglacial channel pressure , size , and sediment transport

@inproceedings{Gimbert2016SubseasonalCO,
  title={Sub-seasonal changes observed in subglacial channel pressure , size , and sediment transport},
  author={Florent Gimbert and Victor C. Tsai and Jason M. Amundson and Timothy C. Bartholomaus and Jacob I Walter},
  year={2016}
}
Water that pressurizes the base of glaciers and ice sheets enhances glacier velocities and modulates glacial erosion. Predicting ice flow and erosion therefore requires knowledge of subglacial channel evolution, which remains observationally limited. Here we demonstrate that detailed analysis of seismic ground motion caused by subglacial water flow at Mendenhall Glacier (Alaska) allows for continuous measurement of daily to subseasonal changes in basal water pressure gradient, channel size, and… CONTINUE READING
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