Res2dinv free download windows#

However, the program has an option which allows the user to use a model where the number of blocks can exceed the number of data points. The distribution and size of the blocks is automatically generated by the program so that the number of blocks usually do not exceed the number of data points. The arrangement of the blocks is loosely tied to the distribution of the data points in the pseudosection. The 2-D model used by the inversion program, which consists of a number of rectangular blocks, is shown in Figure 2. This program is designed to invert large data sets (with about 200 to 6500 data points) collected with a system with a large number of electrodes (about 25 to1800 electrodes). Figure 1 shows an example of the electrodes arrangement and measurement sequence that can be used for a 2-D electrical imaging survey. It has been tested with video screen modes of up to 1600 by 1200 pixels and 256 colours.

Res2dinv free download windows#

Since it is a Windows based program, all Windows compatible graphics cards and printers are automatically supported. Special OhmMapper Note 93 What's New 94 Preview 97ДЎ Introduction RES2DINV is a computer program that will automatically determine a two-dimensional (2-D) resistivity model for the subsurface for the data obtained from electrical imaging surveys (Griffiths and Barker 1993). 1 Introduction 1 2 Computer system requirements and installation 3 3 Copy protection 5 4 Theory 6 5 Disc contents 7 6 Using the program 9 7 Data file operations 10 8 Editing the data 14 9 Changing the program settings 17 10 Inversion options 22 11 Topographical modelling 29 12 Display inversion results 32 13 Program settings 37 14 Help 37 15 Printing the pseudosections 37 16 Other useful programs 38 17 Pitfalls in 2-D inversion 39 18 Some field examples 40 19 Trouble shooting 43 Acknowledgements 44 References 45 Appendix A : Dipole-dipole and pole-dipole surveys 47 Appendix B : The Wenner-Schlumberger array 50 Appendix C : Fixing Resistivities 52 Appendix D : The Equatorial Dipole-Dipole array 54 Appendix E : Underwater surveys 55 Appendix F : IP data inversion 58 Appendix G : Command line batch mode 62 Appendix H : Speed of graphics display 63 Appendix I : Cross-borehole data inversion 64ДЄppendix J : Remote electrodes 73 Appendix K : Robust data and model inversion 77 Appendix L : Non-conventional or general arrays 79 Appendix M : Array types in RES2DINV 85 Appendix N : Saving results in SURFER format 87 Appendix O : Model refinement 90 Wenner (,), dipole-dipole, inline pole-pole, pole-dipole, equatorial dipole-dipole, Schlumberger and non-Д¬onventional arrays On land, underwater and cross-borehole surveysДЄugust 2001 email : Internet : Table of Contents Topic Page No. Rapid 2-D Resistivity & IP inversion using the least-squares method