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Relative campaign during the International Comparison of Absolute Gravimeters ICAG-2005 and the strategy of data treatment combined with the absolute results / Zhiheng Jiang (2007)
Titre : Relative campaign during the International Comparison of Absolute Gravimeters ICAG-2005 and the strategy of data treatment combined with the absolute results Type de document : Article/Communication Auteurs : Zhiheng Jiang , Auteur ; Leonid Vitushkin, Auteur ; Matthias Becker, Auteur ; Olivier Francis, Auteur ; Philippe Jousset, Auteur ; Matthieu Ferry, Auteur ; François Dupont , Auteur ; Sébastien Deroussi, Auteur ; Laurent Métivier , Auteur ; Gwendoline Pajot-Métivier , Auteur ; et al., Auteur Editeur : [s.l.] : [s.n.] Année de publication : 2007 Conférence : IGFS 2006, 1st International Symposium of the International Gravity Field Service 28/08/2006 01/09/2006 Istanbul Turquie OA proceedings Importance : pp 375 - 380 Note générale : auteurs : Zhiheng Jiang 1 , Leonid Vitushkin1 , Matthias Becker2 , Olivier Francis3 , Philippe Jousset4 and Matthieu Ferry3 , François Dupont4 , Sébastien Deroussi5 , Laurent Métivier5 , Gwendaline Pajot5 , Chiungwu Lee6 , Chin-Lung Tsai 6 , Reinhard Falk7 , Herbert Wilmes7 , Alexander Kopaev8 , Diethard Ruess9 , Christian Ullrich9 , Bruno Meurers10, Jan Mrlina11, Vojtech Palinkas12, Jakub Kostelecky12, Franck Pereira13 , Michel van Ruymbeke14, Sébastien Naslin14 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] gravimètre absolu
[Termes IGN] gravimètre supraconducteur
[Termes IGN] gravimétrieRésumé : (auteur) As a tradition following the first International Comparison of Absolute Gravimeters in 1981 (Becker and Groten, 1983), during the 7 th International Comparison of Absolute Gravimeters (ICAG-2005) at the BIPM (Bureau International des Poids et Mesures), high precision relative gravity ties and vertical gradients were measured over the BIPM ICAG-network which includes sites with a gravity difference up to 9 mGal* . 12 institutes of 10 countries with 15 gravimeters of 6 different types were employed. We report in this paper the organisation of the relative campaign, the raw data analysis, the relative-only measurement adjustment and the combined adjustment of the relative and absolute data. Related problems issued during the measurements and data processing are introduced. When preparing the final version of this paper, the absolute g-values of the ICAG 2005 are not yet available (Vitushkin et al., IGFS2006). In consequence, results presented here are preliminary. The detailed analysis of adjusted g-values and gravimeter calibration etc. will be discussed in a forthcoming paper. The relative gravimetry raw data analysis, the comparison between the relative-only adjustment and the absolute-only adjustment shows that the uncertainty of an adjusted gravity difference given by the relative campaign is of the order of 1~2 µGal, probably ±1.3 µGal, and that of the gradient is of the order of 1~2 µGal/m. Numéro de notice : C2006-038 Affiliation des auteurs : LAREG+Ext (1991-2011) Thématique : POSITIONNEMENT Nature : Communication DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=102795 Documents numériques
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