Abstract：We did tidal analysis and extracted gravity residual from continuous gravity records of gPhone meters (serial number 109 and 118) at Shisanling seismic station from April to August in 2013. The results showed the gPhone meters successfully detected the gravity variations at μGal level, which are caused by rainfall| the delay time of positive correlation between the 2nd-order curve fitting residual gravity of gPhone data and the static water level of Shahe seismic station (15 km from Shisanling seismic station) is about 4 d. Such a positive correlation indicates that the hydrology records are very important in the explanation of the observed gravity data. Therefore, to increase the processing accuracy of gravity data, it is necessary to add groundwater level observations to the continuous gravity observation network of our country.
SHE Yawen,FU Guangyu,WEI Jin. Analysis of Instrument Performance and Hydrology Response of
gPhone Meters at Shisanling Seismic Station[J]. jgg, 2015, 35(5): 901-905.
