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The 8th International Comparison of Absolute Gravimeters 2009: the first Key Comparison (CCM.G-K1) in the field of absolute gravimetry

2012; IOP Publishing; Volume: 49; Issue: 6 Linguagem: Inglês

10.1088/0026-1394/49/6/666

1681-7575

Z. Jiang, Vojtech Pálinkás̆, F. Arias, J. O. Liard, Sébastien Merlet, H. Wilmes, L. F. Vitushkin, L. Robertsson, L. Tisserand, Franck Pereira dos Santos, Quentin Bodart, Reinhard Falk, Henri Baumann, Shigeki Mizushima, Jaakko Mäkinen, Mirjam Bilker‐Koivula, Chia‐Ling Lee, In-Mook Choi, Baki Karaböce, Wang-xi Ji, Qiong Wu, D. Ruess, C. Ullrich, Jan Kostelecký, D. Schmerge, M. C. Eckl, Ludger Timmen, Nicolas Le Moigne, R. Bayer, T. A. Olszak, Jonas Ågren, Ciro Del Negro, Filippo Greco, M. Diament, Sébastien Deroussi, Sylvain Bonvalot, Jan Kryński, Marcin Sękowski, H. Hu, L J Wang, S Svitlov, Alessandro Germak, Olivier Francis, M. Becker, Dave Inglis, Ian Robinson,

Statistical and numerical algorithms

The 8th International Comparison of Absolute Gravimeters (ICAG2009) took place at the headquarters of the International Bureau of Weights and Measures (BIPM) from September to October 2009. It was the first ICAG organized as a key comparison in the framework of the CIPM Mutual Recognition Arrangement of the International Committee for Weights and Measures (CIPM MRA) (CIPM 1999). ICAG2009 was composed of a Key Comparison (KC) as defined by the CIPM MRA, organized by the Consultative Committee for Mass and Related Quantities (CCM) and designated as CCM.G-K1. Participating gravimeters and their operators came from national metrology institutes (NMIs) or their designated institutes (DIs) as defined by the CIPM MRA. A Pilot Study (PS) was run in parallel in order to include gravimeters and their operators from other institutes which, while not signatories of the CIPM MRA, nevertheless play important roles in international gravimetry measurements. The aim of the CIPM MRA is to have international acceptance of the measurement capabilities of the participating institutes in various fields of metrology. The results of CCM.G-K1 thus constitute an accurate and consistent gravity reference traceable to the SI (International System of Units), which can be used as the global basis for geodetic, geophysical and metrological observations of gravity. The measurements performed afterwards by the KC participants can be referred to the international metrological reference, i.e. they are SI-traceable.