RESEARCH ON ACCURACY OF POINT MASS MODEL USING AUSTRALIAN GROUND AND AIRBORNE GRAVITY DATA
利用高精度地面及航空重力数据对点质量模型精度的研究

The self-consistency problem of the point mass model method for approximating the Earth's external gravity field is discussed.Considering the fact that the disturbing gravity cannot be obtained through direct measurement at altitudes above the Earth's surface,a solution which made for studying the approximation accuracy of the point mass model method is proposed.That a test of internal and external consistency accuracy based on the ground and airborne gravity observations of Australia was made.Numerical res...