PRECISE GRAVITY MONITORING WITH AN FG5 ABSOLUTE GRAVIMETER, AT THE YANAIZU-NISHIYAMA GEOTHERMAL FIELD

摘要

A Micro-g FG5 (S/N 217) absolute gravimeter was introduced and tested in 2002 to detect short-term gravity changes related to a suspension in production at the Yanaizu-Nishiyama geothermal field. The test confirmed that the FG5 absolute gravimeter is suitable for practical use in monitoring geothermal fields.