1)61365 Troops of PLA，Tianjin 300140;2)Surveying and Mapping Institute of Information Engineering University, Zhengzhou 450052;3)Bureau of Surveying and Mapping of Shanxi Province, Xi’an 710054
Abstract：The FG5 absolute gravimeter was applied to the absolute gravity measurement at the 12 absolute gravity fiducial stations of the Crustal Movement Observation Network of China near the ocean. The Earth tide and ocean loading correction were analyzed in the absolute gravity determination. As a result, the FG5 absolute gravimeter at Shanghai fiducial station precisely detected the coseismic response to Japan Ms6.0 earthquake. The standard deviation of Set Scatter of all stations was proved to be better than 5×10 -8 ms -2.
