Is the calibration of a superconducting gravimeter stable in time?
Martine Amalvict, Jacques Hinderer
EOST - Institut de Physique du Globe, 5 rue René Descartes 67084 Strasbourg cedex,
France – Martine.Amalvict@eost.u-strasbg.fr
The J9 GGP station in Strasbourg, France is equipped with the superconducting
gravimeter SG#C026 since July 1996 and with an absolute gravimeter (FG5#206)
since December 1996. In the ten-year period (1996-2006), we conducted numerous
parallel recordings of gravity variations with both instruments.
We present here and comment on the time stability of the resulting calibration factors,
as well as on the achieved precision.
Oral presentation