Unlimited number of possible electrode configurations! You can process In addition to these commonĪrrays, the program even supports non-conventional arrays with an almost Wenner, pole-pole, dipole-dipole, pole-dipole, Wenner-Schlumberger andĮquatorial dipole-dipole (rectangular) arrays. This program can be used for surveys using the The program supports both the finite-difference and finite-elementįorward modelling techniques. Inversion routine (deGroot-Hedlin and Constable 1990, Loke and Barkerġ996a). Values, and a non-linear least-squares optimisation technique is used for the However, the program can also handle data sets with a non-uniform electrodeĪ forward modelling subroutine is used to calculate the apparent resistivity The survey is usually carried out with a system where the electrodesĪre arranged along a line with a constant spacing between adjacent electrodes. Of investigation (Edwards 1977) of the data points with the largest electrode The depth of theīottom row of blocks is set to be approximately equal to the equivalent depth Using the distribution of the data points as a rough guide. Theĭistribution and size of the blocks is automatically generated by the program Loosely tied to the distribution of the data points in the pseudosection. Rectangular blocks, is shown in Figure 2. The 2-D model used by the inversion program, which consists of a number of This program isĭesigned to invert large data sets (with about 200 to 21000 data points)Ĭollected with a system with a large number of electrodes (about 25 to 16000 Sequence that can be used for a 2-D electrical imaging survey. To 1600 by 1200 pixels and 16 million colours.įigure 1 shows an example of the electrodes arrangement and measurement It has been tested with video screen modes of up
#RES2DINV MANUAL WINDOWS#
Windows based program, all Windows compatible graphics cards and printersĪre automatically supported. RES2DINV is a computer program that will automatically determine a two-ĭimensional (2-D) resistivity model for the subsurface for the data obtainedįrom electrical imaging surveys (Griffiths and Barker 1993). No part of this document may be reproduced without written RES2DINV is copyrighted by Geotomo Software, 2000-2010. Ģ Computer system requirements and installation 3ħ Data file operations and data format 11Īppendix A : Dipole-dipole and pole-dipole surveys 55 Appendix B : The Wenner-Schlumberger array 58Īppendix D : The Equatorial Dipole-Dipole array 62Īppendix H : Speed of graphics display 81Īppendix I : Cross-borehole data inversion 82Īppendix K : Robust data and model inversion 96Īppendix L : Non-conventional or general arrays 98Īppendix N : Saving results in SURFER format 106Īppendix R : Time-lapse resistivity inversion 119Īppendix S : Incorporating data noise estimates 127Īppendix T : Incorporating boundaries of known layers 129Īppendix U : Special topography informationĪppendix V : Plotting methods for the gradient array 133Īppendix W : The offset pole-dipole array 138Īppendix X : Global or GPS coordinates 140.Geotomo Software, 115 Cangkat Minden Jalan 5, Minden Heights, 11700 Gelugor, Penang, MALAYSIA Tel : +60 4 6574525, Fax : +60 4 6588437 email : Internet : On land, water and cross-borehole surveys Wenner (,), dipole-dipole, inline pole-pole, pole-dipole, equatorial dipole-dipole, offset pole-dipole,
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