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	Author	Barruol Guilhem, Cordier Emmanuel, Bascou Jérôme, Fontaine Fabrice R., Legrésy Benoit, Lescarmontier Lydie
	Title	Tide‐induced microseismicity in the Mertz glacier grounding area, East Antarctica			Type	Journal
	Year	2013	Publication	Geophysical Research Letters	Abbreviated Journal
	Volume	40	Issue	20	Pages	5412-5416
	Keywords	Adélie land Antarctica cryoseismology icequakes Mertz glacier tide
	Abstract	AbstractThe deployment of a seismic network along the Adélie and George V coasts in East Antarctica during the period 2009?2012 provides the opportunity to monitor cryoseismic activity and to obtain new insights on the relationship between tidal cycles and coastal glacier dynamics. Here we focus on records from a seismometer located on a rocky outcrop in the vicinity of the grounding line of the 35 km broad Mertz glacier, a major outflow of this region. We detect numerous icequakes (50,000 events within 10 months and up to 100 events/h) and demonstrate their clear tidal modulation. We suggest that they result from ice friction and fracturing around the rocky peak and from the glacier flexure in response to the falling and rising tides at its grounding area. We propose that such icequake monitoring could be used as a climate proxy since grounding lines are subject to migrate with sea level changes.
	Programme	688
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	Address
	Corporate Author				Thesis
	Publisher		Place of Publication		Editor
	Language		Summary Language		Original Title
	Series Editor		Series Title		Abbreviated Series Title
	Series Volume		Series Issue		Edition
	ISSN	0094-8276	ISBN	0094-8276	Medium
	Area		Expedition		Conference
	Notes				Approved	yes
	Call Number				Serial	6826
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