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Data used for res2dinv
Data used for res2dinv








However, the parameters which affects the inversion process can be modified by the user. The program will automatically choose the optimum inversion parameters for a particular data set. Topographic effects can be modelled by using a distorted finite-element grid such that the surface of the grid matches the topography.

data used for res2dinv

On a modern microcomputer, the data inversion takes less than a minute for small surveys with 100 electrodes in a flat area, to several hours for extremely large surveys with 6000 electrodes in rugged terrain. It supports parallel calculations that significantly reduces the inversion time. A Intel multi-core (or compatible CPU) based microcomputer with at least 2 GB RAM and an 500 gigabyte hard-disk is recommended. Like RES2DINV, it is completely automatic and the user does not even have to supply a starting model. The RES3DINVx32/圆4 programs use the smoothness-constrained Gauss-Newton least-squares inversion technique to produce a 3D model of the subsurface from the apparent resistivity data alone. The arrays supported include the pole-pole, pole-dipole, inline dipole-dipole, equatorial dipole-dipole and Wenner-Schlumberger and non-conventional arrays.

data used for res2dinv

In areas with complex structures, there is no substitute for a fully 3D survey. The main limitation of such surveys is probably the assumption of a 2D structure. In areas where the geological structures are approximately two-dimensional (2D), conventional 2D electrical imaging surveys have been successfully used.










Data used for res2dinv