为研究2009年7月22日发生在长江流域的日全食对地球重力场的影响,处理和分析了武汉九峰国家重力基准点的GWR超导重力仪和gPhone弹簧重力仪的观测数据,结果表明:超导重力仪的观测数据与气压存在显著的负相关性;3台弹簧重力仪残差时间序列之间有较好的相关性,噪声水平在其正常精度范围之内;超导重力仪和弹簧重力仪在日全食发生期间均未观测到重力场的异常效应。
We processed the gravity observation data of total solar eclipse, which took place along Yangtze Riv- er on July 22, 2009. The observations of one GWR superconducting gravimeter and three spring gravimeters were chosen to processed tide analysis and pressure corrections. The observation data of superconducting gravimeter and air pressure had a negative correlation, but a good correlation between the residual time series of the three spring gravimeters, the noise level was within the normal accuracy range. The result showed that there was no substantial gravity anomaly during the total solar eclipse no matter the superconducting gravimeter or the spring gravimeter.