Articles | Volume 11, issue 1
The Cryosphere, 11, 609–618, 2017
The Cryosphere, 11, 609–618, 2017
Research article
22 Feb 2017
Research article | 22 Feb 2017

Calving localization at Helheim Glacier using multiple local seismic stations

M. Jeffrey Mei et al.

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Cited articles

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Amundson, J. M., Truffer, M., Lüthi, M. P., Fahnestock, M., West, M., and Motyka, R. J.: Glacier, fjord, and seismic response to recent large calving events, Jakobshavn Isbræ, Greenland, Geophys. Res. Lett., 35, l22501,, 2008.
Amundson, J. M., Fahnestock, M., Truffer, M., Brown, J., Lüthi, M. P., and Motyka, R. J.: Ice mélange dynamics and implications for terminus stability, Jakobshavn Isbræ, Greenland, J. Geophys. Res.-Earth, 115, 1405,, 2010.
Amundson, J. M., Clinton, J. F., Fahnestock, M., Truffer, M., Lüthi, M. P., and Motyka, R. J.: Observing calving-generated ocean waves with coastal broadband seismometers, Jakobshavn Isbræ, Greenland, Ann. Glaciol., 53, 79–84,, , 2012.
Anandakrishnan, S. and Bentley, C.: Micro-earthquakes beneath Ice Streams B and C, West Antarctica: observations and implications, J. Glaciol., 39, 455–462, 1993.
Short summary
We determine a method to locate calving at Helheim Glacier. By using local seismometers, we are able to find the calving location at a much higher precision than previous studies. The signal–onset time differences at four local seismic stations are used to determine possible seismic-wave origins. We present a catalogue of 12 calving events from 2014 to 2015, which shows that calving preferentially happens at the northern end of Helheim Glacier, which will help to constrain models of calving.