| 摘 要： | Forward modeling is the base of inversion techniques, and the speed of forward modeling and how to store the coefficient matrix from inversion are the key techniques of the gravity and magnetic 3D inversion. An new Gravity and Magnetic 3D forward modeling method with rolling topography is presented in this paper. The principle is that two different scale matrixes with different measurements from forwarding modeling are produced based on the layers partition for inversion vertically, and the forward modeling values of the gravity and magnetic value with rolling topography are direcdy computed based on the local linear interpolating by taking the topography as the horizontal in the local model space.
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