Joint Geophysical Observations of Ice Stream Dynamics
Ice streams play a major role in the ice mass balance and in the reckoning of the global sea level; they have therefore been object of wide scientific interest in the last three decades. During the 21st Italian Antarctic Expedition, in the austral summer 2005–06, we deployed a joint seismographic an...
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ftingv:oai:www.earth-prints.org:2122/4251 2023-05-15T13:51:40+02:00 Joint Geophysical Observations of Ice Stream Dynamics Danesi, S. Dubbini, M. Morelli, A. Vittuari, L. Bannister, S. Danesi, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Dubbini, M.; DiMec, Università di Modena e Reggio Emilia Morelli, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Vittuari, L.; DISTART, Università di Bologna Bannister, S.; GNS Science, NZ Capra, A.; DiMec, Università di Modena e Reggio Emilia Dietrich, R.; Technische Universitat Dresden, G Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia DiMec, Università di Modena e Reggio Emilia DISTART, Università di Bologna GNS Science, NZ Capra, A. Dietrich, R. Technische Universitat Dresden, G 2008 http://hdl.handle.net/2122/4251 en eng Springer-Verlag Berlin Heidelberg Geodetic and Geophysical Observations in Antarctica, Overview in IPY Perspective 987-3-540-74881-6 http://hdl.handle.net/2122/4251 restricted Antarctica David Glacier Ice Stream Glacier dynamics 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics book chapter 2008 ftingv 2022-07-29T06:05:01Z Ice streams play a major role in the ice mass balance and in the reckoning of the global sea level; they have therefore been object of wide scientific interest in the last three decades. During the 21st Italian Antarctic Expedition, in the austral summer 2005–06, we deployed a joint seismographic and geodetic network in the area of the David Glacier, Southern Victoria Land. This campaign followed a similar experiment carried out in the same area during the austral summer 2003–04 with the deployment of a seismographic network that recorded significant microseismicity beneath the David Glacier, primarily occurring as a few small clusters. In the latest 2005–06 deployment, 7 seismographic stations and 3 GPS geodetic receivers operated continuously for a period of 3 months (November 2005–early February 2006) in an area of about 100×150 km2 around the David Glacier. We have carried out several analyses using the combined data sets. These included the examination of the temporal evolution in earthquake magnitude and location and also the contemporaneous observation of both seismic activity and surface kinematics of the ice stream to possibly correlate the recorded microseismicity with the movement of the glacier, affected by the Ross Sea tides. Unfortunately, a clear correlation between the occurrence of seismic events and the movement of the glacier is not evident. Here we present some details of the two temporary networks and preliminary results and implications. Published 281-298 3.3. Geodinamica e struttura dell'interno della Terra partially_open Book Part Antarc* Antarctic Antarctica David Glacier Ross Sea Victoria Land Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Antarctic Austral David Glacier ENVELOPE(160.000,160.000,-75.333,-75.333) Ross Sea Victoria Land |
institution |
Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
Antarctica David Glacier Ice Stream Glacier dynamics 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics |
spellingShingle |
Antarctica David Glacier Ice Stream Glacier dynamics 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics Danesi, S. Dubbini, M. Morelli, A. Vittuari, L. Bannister, S. Joint Geophysical Observations of Ice Stream Dynamics |
topic_facet |
Antarctica David Glacier Ice Stream Glacier dynamics 02. Cryosphere::02.02. Glaciers::02.02.05. Ice dynamics |
description |
Ice streams play a major role in the ice mass balance and in the reckoning of the global sea level; they have therefore been object of wide scientific interest in the last three decades. During the 21st Italian Antarctic Expedition, in the austral summer 2005–06, we deployed a joint seismographic and geodetic network in the area of the David Glacier, Southern Victoria Land. This campaign followed a similar experiment carried out in the same area during the austral summer 2003–04 with the deployment of a seismographic network that recorded significant microseismicity beneath the David Glacier, primarily occurring as a few small clusters. In the latest 2005–06 deployment, 7 seismographic stations and 3 GPS geodetic receivers operated continuously for a period of 3 months (November 2005–early February 2006) in an area of about 100×150 km2 around the David Glacier. We have carried out several analyses using the combined data sets. These included the examination of the temporal evolution in earthquake magnitude and location and also the contemporaneous observation of both seismic activity and surface kinematics of the ice stream to possibly correlate the recorded microseismicity with the movement of the glacier, affected by the Ross Sea tides. Unfortunately, a clear correlation between the occurrence of seismic events and the movement of the glacier is not evident. Here we present some details of the two temporary networks and preliminary results and implications. Published 281-298 3.3. Geodinamica e struttura dell'interno della Terra partially_open |
author2 |
Danesi, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Dubbini, M.; DiMec, Università di Modena e Reggio Emilia Morelli, A.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia Vittuari, L.; DISTART, Università di Bologna Bannister, S.; GNS Science, NZ Capra, A.; DiMec, Università di Modena e Reggio Emilia Dietrich, R.; Technische Universitat Dresden, G Istituto Nazionale di Geofisica e Vulcanologia, Sezione Bologna, Bologna, Italia DiMec, Università di Modena e Reggio Emilia DISTART, Università di Bologna GNS Science, NZ Capra, A. Dietrich, R. Technische Universitat Dresden, G |
format |
Book Part |
author |
Danesi, S. Dubbini, M. Morelli, A. Vittuari, L. Bannister, S. |
author_facet |
Danesi, S. Dubbini, M. Morelli, A. Vittuari, L. Bannister, S. |
author_sort |
Danesi, S. |
title |
Joint Geophysical Observations of Ice Stream Dynamics |
title_short |
Joint Geophysical Observations of Ice Stream Dynamics |
title_full |
Joint Geophysical Observations of Ice Stream Dynamics |
title_fullStr |
Joint Geophysical Observations of Ice Stream Dynamics |
title_full_unstemmed |
Joint Geophysical Observations of Ice Stream Dynamics |
title_sort |
joint geophysical observations of ice stream dynamics |
publisher |
Springer-Verlag Berlin Heidelberg |
publishDate |
2008 |
url |
http://hdl.handle.net/2122/4251 |
long_lat |
ENVELOPE(160.000,160.000,-75.333,-75.333) |
geographic |
Antarctic Austral David Glacier Ross Sea Victoria Land |
geographic_facet |
Antarctic Austral David Glacier Ross Sea Victoria Land |
genre |
Antarc* Antarctic Antarctica David Glacier Ross Sea Victoria Land |
genre_facet |
Antarc* Antarctic Antarctica David Glacier Ross Sea Victoria Land |
op_relation |
Geodetic and Geophysical Observations in Antarctica, Overview in IPY Perspective 987-3-540-74881-6 http://hdl.handle.net/2122/4251 |
op_rights |
restricted |
_version_ |
1766255671625383936 |