UBC GRAV3D 用于重力数据的体元三维正反演模拟，适用于地面重力数据、航空重力数据或钻孔中测得的三维重力数据。
GRAV3D is a library used for carrying out forward modelling and inversion of surface, airborne and/or borehole gravity data in 3D. The forward modelling is accomplished by using an integral equation approach on a tensor grid that computes and stores the (possibly compressed) sensitivity matrix. The inverse problem is solved as an optimization problem that minimizes the earth structure subject to adequately fitting the data and honouring additional specified constraints.
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