doi:10.1088/0026-1394/39/5/2

Results of the Sixth International Comparison of Absolute Gravimeters, ICAG-2001

L Vitushkin et al 2002 Metrologia 39 407-424 doi: 10.1088/0026-1394/39/5/2

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L Vitushkin¹, M Becker², Z Jiang¹, O Francis³, T M van Dam³, J Faller⁴, J-M Chartier¹, M Amalvict⁵, S Bonvalot⁶, N Debeglia⁷, S Desogus⁸, M Diament⁹, F Dupont⁷, R Falk¹⁰, G Gabalda⁶, C G L Gagnon¹¹, T Gattacceca¹², A Germak⁸, J Hinderer⁵, O Jamet¹³, G Jeffries¹⁴, R Käker¹⁵, A Kopaev¹⁶, J Liard¹¹, A Lindau¹⁵, L Longuevergne⁶, B Luck⁵, E N Maderal¹⁷, J Mäkinen¹⁸, B Meurers¹⁹, S Mizushima²⁰, J Mrlina²¹, D Newell²², C Origlia⁸, E R Pujol¹⁷, A Reinhold¹⁰, Ph Richard²³, I A Robinson²⁴, D Ruess²⁵, S Thies²³, M Van Camp²⁶, M Van Ruymbeke²⁶, M F de Villalta Compagni¹⁷ and S Williams¹⁴
¹ Bureau International des Poids et Mesures (BIPM), Sèvres, France
² Institut für Geodäsie (IfG), Universität der Bundeswehr, Neubiberg, Germany
³ European Center for Geodynamics and Seismology (ECGS), Luxembourg
⁴ JILA, University of Colorado-National Institute of Standards and Technology (NIST), Boulder, CO, USA
⁵ École et Observatoire des Sciences de la Terre (EOST), Strasbourg, France
⁶ Institut de Recherche pour le Développement (IRD), Bondy, France
⁷ Bureau de Recherches Géologiques et Minières (BRGM), Orléans, France
⁸ Istituto di Metrologia ``G. Colonnetti'' (IMGC), Turin, Italy
⁹ Institut de Physique du Globe de Paris (IPGP), Paris, France
¹⁰ Bundesamt für Kartographie und Geodäsie (BKG), Frankfurt, Germany
¹¹ Natural Resources Canada (NRCan), Ottawa, Canada
¹² Institut Géographique National (IGN), Saint-Mandé, France
¹³ École Nationale des Sciences Géographiques (ENSG), Marne-la-Vallée, France
¹⁴ Proudman Oceanographic Laboratory (POL), Bidston, UK
¹⁵ Institut für Erdmessung (IfE), Universität Hannover, Hanover, Germany
¹⁶ Sternberg Astronomical Institute (SAI), Moscow State University, Moscow, Russian Federation
¹⁷ Instituto Geográfico Nacional (IGN), Madrid, Spain
¹⁸ Finnish Geodetic Institute (FGI), Masala, Finland
¹⁹ Institute für Meteorologie und Geophysik (IMG), Universität Wien, Vienna, Austria
²⁰ National Metrology Institute of Japan, National Institute of Advanced Industrial Science and Technology (NMIJ/AIST), Tsukuba, Japan
²¹ Geophysical Institute (GFÚ) AS CR, Prague, Czech Republic
²² National Institute of Standards and Technology (NIST), Gaithersburg, USA
²³ Swiss Federal Office of Metrology and Accreditation (METAS), Bern-Wabern, Switzerland
²⁴ National Physical Laboratory (NPL), Teddington, UK
²⁵ Bundesamt für Eich- und Vermessungswesen (BEV), Vienna, Austria
²⁶ Observatoire Royal de Belgique (ORB), Brussels, Belgium

Abstract. The Sixth International Comparison of Absolute Gravimeters was held from 5 June to 28 August 2001 at the Bureau International des Poids et Mesures (BIPM), Sèvres. Seventeen absolute gravimeters were used to make measurements at five sites of the BIPM gravity network. The vertical gravity gradients at the sites and the ties between them were also measured using seventeen relative gravimeters. For the first time the ties were also measured using absolute gravimeters. Various methods of processing the absolute and relative data were tested to calculate the results. The final results of ICAG-2001 are presented. The acceleration due to gravity at a height of 0.90 m is given as (980 925 701.2 ± 5.5) µGal and (980 928 018.8 ± 5.5) µGal for sites A and B, respectively, calculated using a combined adjustment of the absolute and relative data.

Print publication: Issue 5 (2002)

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Results of the Sixth International Comparison of Absolute Gravimeters, ICAG-2001

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