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根据IERS决议，国际地球参考系的原点是地球固体部分、海洋和大气的共同质量中心因此，地球上流体部分质量分布变化会改变固体地球质心相对于国际地球参考系原点的位置变化．空间技术如SLR和GPS的观测结果表明，固体地球质心可能有幅度达10毫米的位置变化，所以给出固体地球质心位置变化以及地球物理原因已成为重要问题.本文采用了全球4000多个地面气象台站从1949到1982年的月平均降水、温度和气压值，对水和大气的分布变化引起的固体地球质心位置变化进行了计算，得出水储量分布变化对固体地球质心运动比气压分布变化有更大的贡献，固体地球质心位置变化的最大值可达4毫米．
According to the IERS resolution, the origin of the International Earth Reference System is the Earth's solid portion, the common mass center of the ocean and the atmosphere. Therefore, changes in the mass distribution of the fluid portion of the Earth will change the position of the Solid Earth's center of mass relative to the origin of the International Earth Reference System. The observations of space technologies such as SLR and GPS indicate that solid-earth centroids may have positional changes of up to 10 millimeters in magnitude, so giving solid-centroid location changes and geophysical reasons has become an important issue.In this paper, more than 4,000 surface meteorological stations From 1949 to 1982, the monthly average precipitation, temperature and pressure values of the changes of water and atmosphere caused by changes in the distribution of solid earth center of mass calculated the centroid, and found that changes in the distribution of water on solid earth centroid movement than the pressure distribution changes Large contribution, solid earth centroid position changes up to 4 mm.