Relative Gravity Measurement Campaign during the 7th International Comparison of Absolute Gravimeters (2005)

Z. Jiang (1) , M. Becker (2) , O. Francis (3) , A. Germak (4) , V. Palinkas (5) , Philippe Jousset (6) , J. Kostelecky (5) , François Dupont (6) , C.W. Lee (7) , C.L. Tsai (7) , R. Falk (8) , H. Wilmes (8) , A. Kopaev (9) , D. Ruess (10) , M.C. Ullrich (10) , B. Meurers (11) , J. Mrlina (12) , Sébastien Deroussi (13) , Laurent Métivier (13, 14) , Gwendoline Pajot (6, 13) , Franck Pereira dos Santos (15) , M. van Ruymbeke (16) , S. Naslin (16) , M. Ferry (17)

1 BIPM - Bureau International des Poids et Mesures
2 IPGD - Institute of Physical Geodesy
3 CSC - Computer Science and Communications Research Unit [Luxembourg]
4 INRiM - Istituto Nazionale di Ricerca Metrologica
5 GOP - Geodetic Observatory Pecny
6 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
7 ITRI - Industrial Technology Research Institute
8 BKG - Federal Agency for Cartography and Geodesy
9 Sternberg Astronomical Institute [Moscow]
10 BEV - Federal Office of Metrology and Surveying [Vienna]
11 IMG - Institute of Meteorology and Geophysics [Vienna]
12 ASCR - Institute of Geophysics
13 IPGP - Institut de Physique du Globe de Paris
14 LAREG - LAboratoire de Recherche en Géodésie
15 SYRTE - Systèmes de Référence Temps Espace
16 ROB - Royal Observatory of Belgium = Observatoire Royal de Belgique
17 Universidade de Évora

Since the 1st International Comparison of Absolute Gravimeters (ICAG) and accompanying Relative Gravity Campaign (RGC) held at the BIPM in 1981, repeated ICAG-RGCs have been organized every four years. A total of 19 absolute gravimeters (AG) and 15 relative gravimeters (RG) participated in the 7th ICAG-RGC, which took place in 2005. Co-located absolute and relative gravity measurements as well as precision levelling measurements were carried out. The final version of the absolute g values of the 7th ICAG has been officially released recently. This paper is the final report of the 7th RGC and replaces the preliminary results published earlier. It covers the organization of the RGC and the data processing, analyses RG behaviour, computes g, δg and OAG (offset of AG) and discusses their uncertainties. In preparation for the BIPM key comparison ICAG-2009, a standard data-processing procedure has been developed and installed in the BIPM ICAG-RGC software package, GraviSoft. This was used for the final data processing.

Mots clés: Instrumentation; measurement; Environmental; Earth science

Domaines: Sciences de la Terre

Z. Jiang, M. Becker, O. Francis, A. Germak, V. Palinkas, et al.. Relative Gravity Measurement Campaign during the 7th International Comparison of Absolute Gravimeters (2005). Metrologia / Metrologica, 2009, 46 (3), p. 214-226. ⟨10.1088/0026-1394/46/3/008⟩. ⟨hal-00514370⟩