高精度重力仪观测读数所包含的各种信息可分为两大类。第一类属于地球重力场固有的信息;第二类属于每台独立的观测仪器所附加的信息。第一类信息中含有重力的长期变化项如地核平移、地壳及溶岩中的质量迁移、点位变化、地球自转和形状变化、引力常数变化等;亦有短期变化项如地球潮汐效应、地下水变化、大气质量变化、人类行为后果等。第二类信息主要反映的是理想状态下的重力仪读数与千差万别的外界条件下的实际重力仪之不同。后者除含有如尺度及格 High-precision gravimeter observations contained in a variety of information can be divided into two categories. The first belongs to the information inherent in the Earth’s gravitational field; the second belongs to the information appended to each individual observational instrument. The first type of information contains long-term changes in gravity such as translation of the earth’s core, mass transfer in the crust and lava, point changes, rotation and shape of the Earth, changes in the gravitational constant, and short-term changes such as the Earth’s tidal effects, groundwater Changes, changes in air quality, the consequences of human behavior and so on. The second type of information primarily reflects the difference between an ideal gravimeter reading and an actual gravimeter under vastly different external conditions. In addition to containing the latter as the standard pass