Reverse glacier motion during iceberg calving and the cause of glacial earthquakes.

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Bibliographic Details
Title: Reverse glacier motion during iceberg calving and the cause of glacial earthquakes.
Authors: Murray, T., Nettles, M., Selmes, N., Cathles, L. M., Burton, J. C., James, T. D., Edwards, S., Martin, I., O'Farrell, T., Aspey, R., Rutt, I., Baugé, T.
Source: Science (pre-March 2025). 7/17/2015, Vol. 349 Issue 6245, p305-308. 4p.
Subjects: Ice calving, Glaciers, Surging glaciers, Glaciology, Hydrodynamics, Seismological research
Geographic Terms: Greenland
Abstract: The article focuses on research into the impact iceberg calving has on glacier motion. It states that calving at the Helheim Glacier in Greenland resulted in a minutes-long reversal of the horizontal flow of the glacier with a downward deflection of the glacier's terminus. It reports that a hydrodynamic pressure drop behind the capsizing iceberg caused the downward motion and an upward force on the Earth which is the source of glacial earthquakes.
Database: Psychology and Behavioral Sciences Collection
Description
Abstract:The article focuses on research into the impact iceberg calving has on glacier motion. It states that calving at the Helheim Glacier in Greenland resulted in a minutes-long reversal of the horizontal flow of the glacier with a downward deflection of the glacier's terminus. It reports that a hydrodynamic pressure drop behind the capsizing iceberg caused the downward motion and an upward force on the Earth which is the source of glacial earthquakes.
ISSN:00368075
DOI:10.1126/science.aab0460