固体潮汐参数变化与地震关系研究

运用潮汐计算模型及固体潮汐数字化观测结果，计算了固体潮汐参数，并对计算结果进行了对比。结果表明：整点和加密采样（10min）两种采样方法除计算的中误差有一些差别外，对固体潮汐因子的影响不大。同时用辅助气压观测及首都圈体应变观测数据计算了体应变日异常频次，并与观测台站附近的小震活动进行了对比，讨论了远震及震源区地震活动与固体潮汐数字化观测结果间的关系。

STUDY ON RELATIONSHIP BETWEEN EARTH TIDE PARAMETERS AND EARTHQUAKE

Based on the model of earth tide and the observed tide data, we have calculated the tidal parameters by use of the hour- and 10-minute-data and compared them between each other. It shows that the both tidal factors and phase lags of M2 waves are generally close to each other,besides there is little difference in errors. We also proposed and calculated the index of Daily Anomaly Count (DAC) of the body strain by use of the observation data with the supplementary atmosphere observation, and then compared the index with small seismic activities near the observation sites in Beijing area. Finally, the relationship between far earthquakes, weak earthquakes near focal area and the calculated DAC is discussed.