References of "Francis, Olivier 50001803"
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See detailNew Devlopments in Gravity Applications and Instruments
Nind, Chris; Niebauer, Tim; MacQueen, Jeff et al

Scientific Conference (2008, January 14)

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See detailGeodetic measurements of postglacial adjustments in Greenland
Khan, S. A.; Wahr, J.; Leuliette, E. et al

in Journal of Geophysical Research (2008)

We analyze data from seven continuous Global Positioning System (GPS) receivers and one tide gauge, all located along the edge of the Greenland ice sheet, to determine vertical uplift rates. We compare ... [more ▼]

We analyze data from seven continuous Global Positioning System (GPS) receivers and one tide gauge, all located along the edge of the Greenland ice sheet, to determine vertical uplift rates. We compare our results with predictions based on the ICE-5G deglaciation model of Peltier (2004). Results from the GPS receiver at Kellyville (-1.2 ± 1.1 mm/a) and from the tide gauge at Nuuk (-2.2 ± 1.3 mm/a), indicate that ICE-5G overestimates the subsidence rates at those locations by 2.1 and 1.1 mm/a, respectively. Kellyville and Nuuk are located along the southwestern margin of the Greenland ice sheet, and the observed negative uplift rates are consistent with independent evidence that the ice margin along the southwestern edge readvanced during the last ~8 ka to its current position. The ICE-5G glaciation-deglaciation history includes a readvance between the latitudes of 62°N and 72°N. The GPS measurements suggest the ICE-5G readvance may be too large or mistimed. Our GPS results at Qaqortoq, located at the southern tip of Greenland, suggest a secular subsidence rate of 􏰀0.3 ± 1.1 mm/a, while ICE-5G predicts an uplift rate of 1.0 mm/a. ICE-5G assumes no ice sheet readvance in south Greenland, including no readvance of the Qassimiut lobe. The difference of 1.3 ± 1.1 mm/a can tentatively be explained as due to a ~33 km readvance of the Qassimiut lobe during the last ~3 ka. For the other GPS sites, the observed/predicted uplift rates are 3.6 ± 1.1/-0.1 mm/a at Thule, 0.0 ± 1.1/2.0 mm/a at Scoresbysund, and -0.4 ± 1.1/-1.7 mm/a at Kulusuk. For Thule, Kulusuk, and Scoresbysund the differences between the observed and predicted rates are on the order of 1.3 – 3.7 mm/a, though with opposite signs, and indicate that ICE-5G does not exactly reproduce the correct rebound signal at those locations. [less ▲]

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See detailAbsolute Gravity Measurements at LNE
Merlet, Sébastien; Francis, Olivier UL; Palinkas, Vjotech et al

in Peshekhonov, Vladimir (Ed.) Proceedings of the International Symposium on Terrestrial Gravimetry: static and mobile measurements (2008)

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See detailInvestigations of characteristics of gravimetric sites intended for high-accuracy measurements
Krivtsov, Eugene; Yankovsky, Alexander; Vistushkin, Leonid et al

in Peshekhonov, Vladimir (Ed.) Proceedings of the International Symposium on Terrestrial Gravimetry: static and mobile measurements (2008)

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See detailIs the instrumental drift of superconducting gravimeters a linear or exponential function of time?
Van Camp, Michel; Francis, Olivier UL

in Journal of Geodesy (2007), 81(5), 337-344

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See detailElastic uplift in southeast Greenland due to rapid ice mass lost
Khan, Shfaqat A.; Wahr, John; Stearns, Leigh A. et al

in Geophysical Research Letters (2007), 34(L21701), 1-6

The rapid unloading of ice from the southeastern sector of the Greenland ice sheet between 2001 and 2006 caused an elastic uplift of ~35 mm at a GPS site in Kulusuk. Most of the uplift results from ice ... [more ▼]

The rapid unloading of ice from the southeastern sector of the Greenland ice sheet between 2001 and 2006 caused an elastic uplift of ~35 mm at a GPS site in Kulusuk. Most of the uplift results from ice dynamic-induced volume losses on two nearby outlet glaciers. Volume loss from Helheim Glacier, calculated from sequential digital elevation models, contributes about ~16 mm of the observed uplift, with an additional ~5 mm from volume loss of Kangerdlugssuaq Glacier. The remaining uplift signal is attributed to significant melt-induced ice volume loss from the ice sheet margin along the southeast coast between 62°N and 66°N. [less ▲]

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See detailRelative campaign during the International Comparison of Absolute Gravimeters ICAG-2005 and the strategy of data treatment combined with the absolute results
Jiang, Zhiheng; Vitushkin, Leonid; Becker, Matthias et al

in Kilicoglu, Ali; Forsberg, Rene (Eds.) Gravity Field of the Earth: Proceedings of the 1st International Symposium of the International Gravity Field Service (2007)

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See detailThe Seventh International Comparison of Absolute Gravimeters ICAG-2005 at the BIPM. Organization and Preliminary reseults
Vitushkin, Leonid; Jiang, Zhiheng; Becker, Matthias et al

in Kilicoglu, Ali; Forsberg, Rene (Eds.) Gravity Field of the Earth: Proceedings of the 1st International Symposium of the International Gravity Field Service (2007)

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See detailMeasurements of the acceleration due to gravity at the gravity laboratory of the National Institute of Metrological Research Turin (Italy)
D'Agostino, G.; Desogus, S.; Germak, A. et al

Report (2006)

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See detailAnalysis of results of the International Comparison of Absolute Gravimeters in Walferdange (Luxembourg) of November 2003
Francis, Olivier UL; van Dam, Tonie UL

in Francis, Olivier; van Dam, Tonie (Eds.) International Comparison of Absolute Gravimeters in Walferdange (Luxembourg) of November 2003 (2006)

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See detailInternational Comparison of Absolute Gravimeters in Walferdange (Luxembourg) of November 2003
Francis, Olivier UL; van Dam, Tonie UL

Book published by Centre Européen de Géodynamique et de Séismologie (2006)

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See detailModelling the global ocean tides: modern insights from FES2004
Lyard, Florent; Lefevre, Fabien; Letellier, Thierry et al

in Ocean Dynamics (2006), 56(5-6), 394--415

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See detailSet standard deviation, repeatability and offset of absolute gravimeter A10-008
Schmerge, D.; Francis, Olivier UL

in Metrologia (2006), 43(5), 414

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See detailGravity Tide and seasonal gravity variation at Ny-Alesund, Svalbard In Arctic
Sato, Tadahiro; Boy, Jean-Paul; Tamura, Yoshiaki et al

in Journal of Geodynamics (2006), 41(1-3), 234-241

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See detailA geophysical interpretation of the secular displacement and gravity rates observed at Ny-Alesund, Svalbard in the Arctic - effects of the post-glacial rebound and present-day ice melting
Sato, Tadahiro; Okuno, Junichi; Hinderer, Jacques et al

in Geophysical Journal International (2006), 165(3), 729-743

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See detailResults of the international comparison of absolute gravimeters in Walferdange (Luxembourg) of November 2003
Francis, Olivier UL; van Dam, Tonie UL; Amalvict, M. et al

in Jekeli, C.; Bastos, L.; Fernandes, J. (Eds.) Gravity, Geoid and Space Missions - GGSM 2004 (2005)

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