Article (Scientific journals)
GENESIS: Co-location of Geodetic Techniques in Space
Delva, Pacôme; Altamimi, Zuheir; Blazquez, Alejandro et al.
2023In Earth, Planets, and Space, 75 (5)
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Keywords :
GENESIS satellite; reference systems; geodesy; geophysics; navigation; positioning; metrology; space geodetic techniques
Abstract :
[en] Improving and homogenizing time and space reference systems on Earth and, more directly, realizing the Terrestrial Reference Frame (TRF) with an accuracy of 1mm and a long-term stability of 0.1mm/year are relevant for many scientific and societal endeavors. The knowledge of the TRF is fundamental for Earth and navigation sciences. For instance, quantifying sea level change strongly depends on an accurate determination of the geocenter motion but also of the positions of continental and island reference stations, as well as the ground stations of tracking networks. Also, numerous applications in geophysics require absolute millimeter precision from the reference frame, as for example monitoring tectonic motion or crustal deformation for predicting natural hazards. The TRF accuracy to be achieved represents the consensus of various authorities which has enunciated geodesy requirements for Earth sciences. Today we are still far from these ambitious accuracy and stability goals for the realization of the TRF. However, a combination and co-location of all four space geodetic techniques on one satellite platform can significantly contribute to achieving these goals. This is the purpose of the GENESIS mission, proposed as a component of the FutureNAV program of the European Space Agency. The GENESIS platform will be a dynamic space geodetic observatory carrying all the geodetic instruments referenced to one another through carefully calibrated space ties. The co-location of the techniques in space will solve the inconsistencies and biases between the different geodetic techniques in order to reach the TRF accuracy and stability goals endorsed by the various international authorities and the scientific community. The purpose of this white paper is to review the state-of-the-art and explain the benefits of the GENESIS mission in Earth sciences, navigation sciences and metrology.
Disciplines :
Earth sciences & physical geography
Space science, astronomy & astrophysics
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Delva, Pacôme
Altamimi, Zuheir
Blazquez, Alejandro
Blossfeld, Mathis
Böhm, Johannes
Bonnefond, Pascal
Boy, Jean-Paul
Bruinsma, Sean
Bury, Grzegorz
Chatzinikos, Miltiadis
Couhert, Alexandre
Courde, Clément
Dach, Rolf
Dehant, Véronique ;  Université de Liège - ULiège > Département de géologie > Early Life Traces & Evolution-Astrobiology
Dell'Agnello, Simone
Elgered, Gunnar
Enderle, Werner
Exertier, Pierre
Glaser, Susanne
Haas, Rüdiger
Huang, Wen
Hugentobler, Urs
Jäggi, Adrian
Karatekin, Ozgur
Lemoine, Frank G.
Le Poncin-Lafitte, Christophe
Lunz, Susanne
Männel, Benjamin
Mercier, Flavien
Métivier, Laurent
Meyssignac, Benoît
Müller, Jürgen
Nothnagel, Axel
Perosanz, Felix
Rietbroek, Roelof
Rothacher, Markus
Sert, Hakan
Sosnica, Krzysztof
Testani, Paride
Ventura-Traveset, Javier
Wautelet, Gilles  ;  Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Zajdel, Radoslaw
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Title :
GENESIS: Co-location of Geodetic Techniques in Space
Publication date :
Journal title :
Earth, Planets, and Space
Publisher :
Terra Scientific Publishing Company, Japan
Volume :
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Peer reviewed :
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