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Seamless inversion of very long survey lines using sparse inversion techniques (RES2DINV only license includes limited used of RES3DINV 3D inversion program) RES2DINV software is designed to interpolate and interpret field data of electrical geophysical prospecting (2D sounding) of electrical resistivity (conductivity) and induced polarization. Software to edit resistivity and IP data, includes a commercial 1D inversion software: Shareware: Site for various demo and shareware programs: 2D plotting: Demo for Surfer 2D plotting software: 3D graphics and models: A sophisticated 3D earth science graphics package. Supported by RES3DINV. 2D and 3D graphics package. https://treestock928.weebly.com/usb-20-serial-driver-for-redsail-plotter.html. Microcomputers and inversion software now make it possible to take more than one reading. The inversion of the 3D data gave 3D resistivity sections which were. 3D resistivity survey 1.1. Site and Target Descriptions The survey site was at the convocation ground of the. Inverted using the RES2DINV software developed by Loke and Barker (1996). AGI is proud to introduce the new EarthImager 3D resistivity and IP inversion software. This software inverts resistivity and IP data acquired with electrodes arranged in boreholes and/or on the surface and presents a 3D volume of inverted resistivity data with advanced volume rendering technique. The final resistivity or IP image-volume can be. Our most advanced modeling and inversion software for all electrical resistivity and induced polarization tomography needs. Its user-friendly interface will help with 2D, 3D, or 4D geophysical Electrical Resistivity Tomography (ERT) applications. All individual ERT modules from previous versions are now embedded in a full 3D graphical environment.
Resistivity and induced polarization inversion software (free to download)
ProfileR has been designed for surface array resistivity imaging. ProfileR is an inverse solution for a 2-D resistivity distribution based on computation of 3-D current flow using a quadrilateral finite element mesh. The inverse solution is based on a regularised objective function combined with weighted least squares (an 'Occams' type solution). The code supplied has been compiled for Intel compatable processors, users working on different platforms should contact the author.
ProfileR has no built in graphical interface. The user can use his/her own software for graphical output (e.g. Surfer). Alternatively the interface Zondres2D written by Alexander Kaminsky can be used. This is attached in the download bundle along with a readme file to explain how to get started. The plot shown here is an example of the output from the Zondres2D graphical interface written for ProfileR by Alexander Kaminsky
The R family of codes
A set of four codes have been developed to allow forward and inverse modelling of 2D and 3D DC resistivity and induced polarization (complex resistity). The meshing and data input are similar for all codes.
R2 is a forward/inverse modelling code for 2-D resistivity problems. Regions are discretised in a quadrilateral or triangular mesh. The inverse solution is based on a regularised objective function combined with weighted least squares (an ‘Occams’ type solution) as defined in Binley and Kemna (2005). Electrodes can be placed on the ground surface or in boreholes. A 32bit and 64bit version for Intel compatible processors are provided in the download. R2 will output forward and inverse models in x,y,z ASCII format suitable for plotting with third party software. R2 also produces vtk formatted output allowing quick plotting with Paraview
cR2 is is a forward/inverse modelling code for 2-D complex resistivity (induced polarization) problems. cR2 is based on R2 and has a similar input/output structure.
R3t is a forward/inverse solution for 3D current flow in an unstructured (tetrahedral) or structured (triangular prism) mesh. The inverse solution is based on a regularised objective function combined with weighted least squares (an ‘Occams’ type solution) as defined in Binley and Kemna (2005).
R3t runs in a 64bit Intel compatible processor (64bit is necessary for running large problems).
cR3t is a forward/inverse solution for 3-D complex resistivity (induced polarization) problems using unstructured (tetrahedral) or structured (triangular prism) mesh. cR3t using the same meshing structure as R3t but treats resistivity as a complex parameter (defined in terms of magnitude and phase angle). cR3t runs in a 64bit Intel compatible processor (64bit is necessary for running large problems).
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Links to software useful for the above codes
ParaView - open source data visualisation software - ParaView
Mesh generator with graphical interface - Gmsh
- a new Python GUI for R2, R3t, cR2 and cR3t - ResIPy