On Precise Gravity Measurement at Stations of Small Gravity Difference (Part 3 )

Abstract

Precise gravity measurement was carried out repeatedly at both sets of the stations, where gravity difference from the base station (Gravity Station of Geophysical Institute of Kyoto University, 979. 72158 gal) is smaller than 1 mgal and where gravity value is almost equal to 979.700 gal, by means of 3 LaCoste & Romberg gravimeters (model G). The obtained accuracy was estimated to be about ±0.015 mgal. The gravity values obtained through the present measurement will give basic data for the future study on time change of gravity in the Kinki District.