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Airborne absolute gravimetry with a Quantum sensor

Authors

Jensen,  Tim
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Bidel,  Yannick
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Zahzam,  Nassim
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Bresson,  Alexandre
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Blanchard,  Cédric
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Bonnin,  Alexis
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Cadoret,  Malo
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Bernard,  Jeanne
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Forsberg,  René
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Salaün,  Corinne
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Lucas,  Sylvain
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Lequentrec-Lalancette,  Marie-Francoise
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Rouxel,  Didier
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Gabalda,  Germinal
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Seoanne,  Lucia
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Citation

Jensen, T., Bidel, Y., Zahzam, N., Bresson, A., Blanchard, C., Bonnin, A., Cadoret, M., Bernard, J., Forsberg, R., Salaün, C., Lucas, S., Lequentrec-Lalancette, M.-F., Rouxel, D., Gabalda, G., Seoanne, L. (2023): Airborne absolute gravimetry with a Quantum sensor, XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-1636


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017942
Abstract
In 2019 the French Aerospace Lab (ONERA) carried out an airborne gravity survey to test their quantum absolute gravimeter, GIRAFE, targeting three different locations in France. This was done with the support of the French Laboratory of National Meteorology (LCM-CNAM), the French Hydrographic and Oceanographic Office (SHOM), the French Laboratory of Geoscience Environment (GET) and the National Space Institute at the Technical University of Denmark (DTU Space). On board the aircraft was also a classical strapdown gravimeter provided by DTU Space, to be used as a reference for the GIRAFE observations. Here we will present the results of the survey along with a comparison with both the classical sensor, marine observations and altimetry derived gravity data. The results show that the GIRAFE estimates have improved dramatically since the first airborne test carried out in Iceland 2017, reaching an accuracy of 0.6 to 1.3 mGal. It is also evident that the long-term stability of the GIRAFE instrument is significantly better than the classical strapdown system. P.S. the actual actract had more than 15 authors: Yannick Bidel, Nassim Zahzam, Alexandre Bresson, Cédric Blanchard, Alexis Bonnin, DPHY-ONERA Malo Cadoret, Jeanne Bernard, LCM-CNAM Tim E. Jensen (presenter), René Forsberg, DTU Space Corinne Salaün, Sylvain Lucas, Marie-Francoise Lequentrec-Lalancette, Didier Rouxel, SHOM Germinal Gabalda, Lucia Seoanne, Dinh Toan Vu, Sylvain Bonvalot, GET (CNRS, IRD, UPS, CNES)