The amplitude of background seismic noise varies with the amount of subglacial discharge at glaciers in Alaska and Greenland.  We find that subglacial discharge efficiency increases at a tidewater glacier, over the course of the summer.  Glaciohydraulic tremor observations represent the first tool to quantitatively assess variations in subglacial discharge from tidewater glaciers.

The article is available here.

  • Citation: Bartholomaus, T. C., J. M. Amundson, J. I. Walter, S. O’Neel, M. E. West, and C. F. Larsen (2015), Subglacial discharge at tidewater glaciers revealed by seismic tremor, Geophysical Research Letters, 42, 6391-6398, doi:10.1002/2015GL064590.
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