France
Projects
- Concordia, Antarctica, Seismic Experiment for the International Polar Year (CASE-IPY)
- see also: POLENET/LAPNET- a multidisciplinary seismic array experiment in northern Fennoscandia during the International Polar Year 2007-2009
- Gravity variation and vertical motion in polar regions - Constraints on post-glacial rebound and present-day ice melting (GRAVITE)
Project Name and Acronym:
Concordia, Antarctica, Seismic Experiment for the International Polar Year (CASE-IPY)
http://case.u-strasbg.fr
Principal Contacts for Data
Jean-Jacques Leveque, leveque@sismo.u-strasbg.fr
Alessia Maggi, alessia.maggi@unistra.fr
Project Scientists
Jean-Jacques Lévêque, CNRS (UMR7516) and University of Strasbourg, leveque@sismo.u-strasbg.fr
Alessia Maggi, CNRS (UMR7516) and University of Strasbourg, alessia.maggi@unistra.fr
Annie Souriau, Observatoire Midi-Pyrénées and CNRS UMR5562, Annie.souriau@dtp.obs-mip.fr
Jean-Paul Montagner, Institut de Physique du Globe Paris, jpm@ipgp.jussieu.fr
Project Locations
East Antarctica
Project Activities
Deployment of 3 remote stations close to Concordia base, and of a seismic profile between Concordia and Vostok stations.
Principal Science Objectives
Mapping crustal and lithospheric structure. Providing observations of core phases along polar paths.
Research Highlights
First remote stations in the region between Concordia and Vostok. Improved knowledge of the seismic structure of the ice-cap.
Published Papers and Abstracts
JJ. Leveque, A. Maggi & A. Souriau, 2010. Seismological constraints on ice properties at Dome C, Antarctica, from H/V measurements. Antarctic Science (submitted).
JJ. Leveque, A. Maggi, A. Souriau & G. Wittlinger. CASE-IPY: autonomous seismic stations newly deployed on the East Antarctic Plateau. EGU General Assembly, 2010.
A. Souriau, JJ. Leveque, A. Maggi. Seismological constraints on ice properties at Dome C, Antarctica, from H/V measurements. American Geophysical Union, Fall 2009.
JJ. Leveque, A. Maggi, A. Delladio, J. Burdin, JY. Thore, A. Morelli. ConCorDia: a new, permanent seismological station in Antarctica. EGU General Assembly, 2008.
A. Maggi and JJ. Leveque. Concordia, Antarctica, Seismic Experiment for the International Polar Year. American Geophysical Union, Fall 2007.
Institutes / Agencies that provided project support
Agence National de la Recherche (ANR)
Funding and logistical support from Institut Paul Emile Victor (IPEV)
Are you a member of an institution in France affiliated with POLENET?
Please contact Megan Berg to contribute web content.
Project Name and Acronym:
Gravity variation and vertical motion in polar regions - Constraints on post-glacial rebound and present-day ice melting (GRAVITE)
Principal Contacts for Data
Jacques Hinderer, Nicolas Le Moigne, Bernard Luck, Yves Rogister
Project Scientists
Martine Amalvict, Institut de Physique du Globe Strasbourg (CNRS/University of Strasbourg), Martine.Amalvict@unistra.fr
Jacques Hinderer, Institut de Physique du Globe Strasbourg (CNRS/University of Strasbourg), Jacques.Hinderer@eost.u-strasbg.fr
Nicolas Le Moigne, Géosciences Montpellier (CNRS/Univeristy of Montpellier 2), nicolas.lemoigne@gm.univ-montp2.fr
Bernard Luck, Institut de Physique du Globe Strasbourg (CNRS/University of Strasbourg), Bernard.Luck@unistra.fr
Anthony Mémin, Institut de Physique du Globe Strasbourg (CNRS/University of Strasbourg), Anthony.Memin@unistra.fr
Yves Rogister, Institut de Physique du Globe Strasbourg (CNRS/University of Strasbourg), Yves.Rogister@unistra.fr
Project Locations
Ross Embayment (McMurdo Station, Scott Base, Cape Roberts, Mario Zucchelli Station) and Terre Adélie (Dumont d'Urville Station) in Antarctica, Ny-Alesund in Svalbard
Project Activities
Absolute and relative gravity measurements at permanent stations
Principal Science Objectives
By repeating gravity measurements at different sites every few years, we monitor the long-term variation of the gravity field. The ground-based gravity observations are complementary to the GPS observations that provide the motion of the ground and space observations of the time-varying gravity field by the satellite GRACE launched in 2002. The goals are to separate the signals coming from different sources of Earth deformation, in particular the present-day ice melting and post-glacial rebound, and better understand the response of the cryosphere to climate changes.
Research Highlights
First absolute gravity measurements at Thiel-1 station (McMurdo Station) and SBG-1 station (Scott Base)
Published Papers
Amalvict M., Willis P., Wöppelmann G., Ivins E., Bouin MN, Testut L., & Hinderer J., (2009) Stability of the East Antarctic station Dumont d?Urville from long-term geodetic observations and geophysical model, Polar research, 28(2), 193-202.
Mäkinen J., Amalvict M., Shibuya K. & Fukuda Y. (2007) Absolute Gravimetry in Antarctica: State-of-the-Art and Prospective, Journal of geodynamics, 43, 339-357.
Mémin A., Rogister Y., & Hinderer J. (2010) Separation of the geodetic consequences of past and present ice melting, Pure and applied geophysics, submitted.
Mémin A., Rogister Y., Hinderer J., Omang O. C., & Luck B. (2010) Secular gravity variations at Svalbard (Norway) from ground observations and GRACE satellite data, Geophysical journal international, in revision.
Abstracts
Hothem L., Le Moigne N., Rogister Y., Mémin A., Hinderer J. (2010) Absolute gravity measurements at McMurdo Station, Scott Base and Mario Zucchelli stations in November 2009, 2nd Symposium of the International Gravity Field Service, Fairbanks, Alaska, September 2010.
Mémin A., Rogister Y., Hinderer J. (2010) Effects of glaciers topography on geodetic consequences of past and present ice melting: the case of Svalbard, Norway, 2nd Symposium of the International Gravity Field Service, Fairbanks, Alaska, September 2010.
Mémin A., Rogister Y., Hinderer J., Kierulf H., Omang O. C. (2009) Comparison of GRACE Data with Superconducting Gravity Measurements at Ny-Alesund in Svalbard, Norway, AGU Meeting, Toronto, Canada, May 2009.
Mémin A., Rogister Y., Hinderer J., Omang O. C., Luck B.. (2010) Secular gravity variations at Svalbard, Norway, from ground observations and GRACE satellite data, International Polar Year, Oslo Science Conference, Oslo, Norway, June 2010.
Mémin A., Rogister Y., Hinderer J., Omang O. C., Luck B.. (2010) Ice loss in Svalbard, Norway, from secular gravity variations analysis of ground observations (SG and AG) and GRACE data}, 2nd Symposium of the International Gravity Field Service, Fairbanks, Alaska, September 2010.
Rogister Y., Le Moigne N., Hothem L., Mémin A., Hinderer J. (2010) Absolute gravity measurements at McMurdo Station, Scott Base and Mario Zucchelli Station in November 2009, SCAR meeting, Buenos Aires, Argentina, August 2010.
Institutes / Agencies that provided project support
Institut Paul Emile Victor (IPEV), Programma Nazionale di Ricerche in Antartide (PNRA), Land Information New Zealand (LINZ), Antarctica New Zealand (ANZ) and US Antarctic Program (USAP)
Are you a member of an institution in France affiliated with POLENET?
Please contact Megan Berg to contribute web content.
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