Superconducting Gravimeter Calibration by CoLocated Gravity Observations: Results from GWR C025
Figure 7
Calibration factors determined by adjusting colocated gravity observations with SG GWR C025 and FG5 (red dots), JILAg-6 (green dots), and Scintrex Autograv CG5 SN 40236 (blue dots). The differential drift of the reference gravimeter has been adjusted by polynomial functions. Dark grey dots indicate the results obtained for the zero drift assumption. The ±1‰ error range is displayed as grey box. The dotted lines indicate the calibration factors resulting from the CG5 (−779.1628 nms−2/V, blue) and AG (−779.4732 nms−2/V, red) experiments. (a) All calibration experiments performed in Vienna (VI) and Conrad observatory (CO). (b) Zoom of the experiments performed at Conrad observatory (CO).
