Tidal forcing on David Glacier and Drygalski Ice Tongue

During the 2005-06 Austral Summer, we carried out a joint observational campaign in the area of the David Glacier, South Victoria Land, with the aim of collecting simultaneous time series of geodetic and seismological data. We installed 7 temporary seismographic stations on rock outcrops surrounding...

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Bibliographic Details
Published in:Geophysical Research Letters
Main Authors: Casula, G., Danesi, S., Dubbini, M., Vittuari, L.
Other Authors: Casula, G.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione CNT, Roma, Italia, Danesi, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia, Dubbini, M.; DIMeC, Università di Modena e Reggio Emilia, Vittuari, L.; Università di Bologna, DISTART, Facoltà Ingegneria, Cooper, A.K.; USGS, Raymond, C.R.; USGS, Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione ONT, Roma, Italia, Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia, DIMeC, Università di Modena e Reggio Emilia, Università di Bologna, DISTART, Facoltà Ingegneria, Cooper, A.K., Raymond, C.R., USGS
Format: Conference Object
Language:English
Published: U.S. Geological Survey and The National Academies 2007
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Online Access:http://hdl.handle.net/2122/2809
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Summary:During the 2005-06 Austral Summer, we carried out a joint observational campaign in the area of the David Glacier, South Victoria Land, with the aim of collecting simultaneous time series of geodetic and seismological data. We installed 7 temporary seismographic stations on rock outcrops surrounding the glacier and 3 temporary geodetic stations both on flowing ice and on rock. The seismic network registered a significant low-energy seismic activity, principally originated by ice creeping and basal stress at the interface between the ice and the bedrock. The geodetic stations allowed us to survey the glacier kinematics forced by the Ross Sea tides, and to infer the grounding line location. Here we show some details about data analysis and preliminary results. Published University of california, Santa Barbara, CA, USA 3.3. Geodinamica e struttura dell'interno della Terra reserved