Abstract：To analyze the influence of the time-varying gravity factors on mobile gravimetry data processing, we use static and dynamic adjustment methods to process gravimetry data in the area of southern segment of the north-south seismic belt, comparing the results of the two methods. The results show that: 1) The time-varying gravity factors cause errors in the gravity changes by the static adjustment method, which have a relatively obvious impact on gravity variations of the 0.5 a and 1 a time scales, but less impact on the gravity variations of more than 2 a time scale. Therefore, it is appropriate to use the dynamic adjustment method to calculate the 0.5 a and 1 a time scales gravity variations. 2) The locations of the Jiuzhaigou M7.0, Changning M6.0 and Yangbi M6.4 earthquakes have a good corresponding relationship with the zero-value of gravity variations. The gravity variations image reflects the seismogenic background of the 3 earthquakes.
HAO Hongtao,WEI Shouchun,WEI Jin et al. A Comparative Study of Dynamic and Static Adjustment Methods in Mobile Gravity Data Processing[J]. jgg, 2022, 42(8): 783-789.
