Fracture Propagation to the Base of the Greenland Ice Sheet During Supraglacial Lake Drainage

@article{Das2008FracturePT,
  title={Fracture Propagation to the Base of the Greenland Ice Sheet During Supraglacial Lake Drainage},
  author={Sarah B. Das and Ian R. Joughin and Mark Dietrich Behn and Ian M. Howat and Matt A. King and Daniel Lizarralde and Maya P. Bhatia},
  journal={Science},
  year={2008},
  volume={320},
  pages={778 - 781}
}
Surface meltwater that reaches the base of an ice sheet creates a mechanism for the rapid response of ice flow to climate change. The process whereby such a pathway is created through thick, cold ice has not, however, been previously observed. We describe the rapid (<2 hours) drainage of a large supraglacial lake down 980 meters through to the bed of the Greenland Ice Sheet initiated by water-driven fracture propagation evolving into moulin flow. Drainage coincided with increased seismicity… 

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