众所周知,在地球整个历史过程中发生了一系列构造过程,如大陆形成和运动、山脉和盆地形成、火山活动和地震过程等。已经证实,这些过程形成和发展中地球自转不均匀性起非常大的作用。地球旋转状态变化决定了地球椭球的扁率,当地球形状收缩变化时,发生子午线弧和纬线弧长度变化共 As we all know, a series of structural processes took place throughout the history of the earth, such as the formation and movement of the continent, the formation of mountains and basins, the volcanic activity and the earthquake process. It has been shown that these processes play an important role in the formation and development of inhomogeneous rotation of the Earth. The change of state of the earth’s rotation determines the ellipsoid’s flattening rate. When the shape of the earth shrinks, the variations of the length of the meridian arc and the weft arc occur