3d Resistivity Inversion Software Store
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This is a list of free and open-source software for geophysical data processing and interpretation. The list is split into broad categories, depending on the intended use of the software and its scope of functions.
- Manufacturer of geophysical instruments for measurements of ground resistivity, electromagnetic conductivity, gamma-ray, magnetic susceptibility, and for metal detection. Geophysical services for engineering geology, archaeology, water sources, environmental, UXO surveys. Processing software for 2D/3D inversion, VES interpretation.
- Omega 3D Electromagnetic Modeling is used to infer the anisotropic resistivity distribution of the subsurface through 3D inversion of controlled-source electromagnetic (CSEM) and magnetotelluric (MT) data. CSEM and MT synthetic responses of the subsurface can be computed starting from the resistivity distribution (i.e., forward modeling).
Notice that 'free and open-source' requires that the source code is available. Simple being 'free of charge' is not sufficient—see gratis versus libre. The reader interested in freeware (just free of charge) software is referred to the list of freeware geophysics software.
Reflection seismic processing packages[edit]
These are full-featured reflection seismology processing packages, with support for modeling, imaging, and inversion. They are relatively low-level and in some cases have their own data formats and involve learning an extensive syntax or meta-language.
| Name | Description | Originator | License | Platforms | Language | Notes |
|---|---|---|---|---|---|---|
| Madagascar[1] | Multidimensional data analysis including seismic processing | Sergey Fomel and others | GPL | Cross-platform | C, C++, Python | Programming Interfaces to Fortran 77, Fortran 90, Python, Java, MATLAB, Julia. |
| FreeUSP[2] | Seismic processing | Amoco, BP | Custom | Unix, Linux | Fortran 77, C | |
| FreeDDS[3] | Seismic processing | Amoco, BP | Custom | Unix, Linux | Fortran 77, C | Generic format (SEGY, SU, SEPlib, USP) |
| PSEIS-OSS[4] | Parallel seismic processing | Randy Selzler | GPL | Unix, Linux | Fortran 77, C | Generic format (SEGY, SU, SEPlib, USP, Madagascar) |
| CWP/SU (Seismic Unix)[5] | Seismic processing | Stanford, Colorado School of Mines | BSD-style | Unix, Linux, OS X, Cygwin 32 | C, some Fortran 77 | World's most widely used (82 countries and territories). |
| CPSeis[6] | Seismic processing | ConocoPhillips | MIT | Cross-platform | Fortran 90, C++ | |
| SPARC[7] | Seismic processing | ARCO | GPL | Cray | Fortran | |
| SEPlib[8] | Seismic processing | Stanford University | Custom | Cross-platform | Fortran, C | |
| GeBR[9] | Seismic processing | Various contributors, Brazil | GPL | Linux | C | Interfaces with SU, Madagascar, etc. |
| OpenSeaSeis[10] | Seismic processing | Bjorn Olofsson, now property of the Colorado School of Mines | BSD-style | Linux, Windows, OS X | C, C++, Java | Interfaces with SU data. Reads most common SEGY and a subset of SEGD formats. |
3d Resistivity Inversion Software Store Reviews
Reflection seismic processing utilities[edit]
These packages offer some subset of functionality of the full processing packages in the previous section.
| Name | Description | Originator | License | Platforms | Language | Notes |
|---|---|---|---|---|---|---|
| BotoSeis[11] | Seismic processing | Williams Lima, Brazil | GPL | Cross-platform | Java | Workflow builder; interfaces with SU, Madagascar, etc. |
| Delivery[12] | Bayesian inversion | CSIRO | GPL, BSD-style | Cross-platform | Java | |
| GSEGYView[13] | Display SEG-Y files | Vladimir Bashkardin | GPL | Cross-platform | Fortran, C | |
| GPLib++[14] | Seismic and magnetotelluric processing | Max Moorkamp, Dublin Inst. Adv. Studies | GPL | Unix, Linux | C++ | |
| JavaSeis[15] | Pre-stack seismic I/O | ARCO | CPL | Cross-platform | Java | |
| kogeo[16] | Geophysical analysis and visualization | University of Hamburg | GPL | Windows | C++ | |
| Mines JTK[17] | Signal processing and display | Dave Hale, Colorado School of Mines | CPL | Cross-platform | Java | |
| JRG[18] | Modeling and basic processing | John Louie, University of Nevada | Custom | Cross-platform | Java | |
| Jive3D[19] | Modeling and tomographic inversion | James Hobro, University of Cambridge | Custom | Unix, Linux | Fortran | GMT and other libraries |
| PySIT[20] | Imaging and inversion | Russell Hewett & Laurent Demanet, MIT | BSD 3-clause | Unix, Linux | Python | |
| SegDSee[21] | Display SEG-D and SEG-B files | Sergey Pavlukhin | Custom | Cross-platform | C++, Qt | |
| segyio[22] | Read and write SEG-Y files | Equinor | LGPL | Cross-platform | C, Python | |
| Segpy[23] | Read and write SEG-Y files | Rob Smallshire, Thomas Mejer Hansen | LGPL | Cross-platform | Python | Fork of defunct SegyPY |
| segy-py[24] | Read SEG-Y files | Kurt Schwehr, Google | Custom | Cross-platform | Python | Various FOSS packages |
| SeismiGraphix[25] | Read and view SEG-Y, SEG-D, Seismic Unix and Javaseis. View and remap headers | Abel Surace | Custom | Cross-platform | Java | |
| SIOSEIS[26] | Seismic reflection and refraction processing | Paul Henkart, SIO | BSD | Cross-platform | gfortran, gcc | |
| SLIMpy[27] | Processing front end | Felix Herrmann, Univ. of British Columbia | LGPL | Cross-platform | Python | Interfaces with SU, Madagascar, etc. |
| WaveletExtractor[28] | Well-ties | CSIRO | GPL, BSD-style | Cross-platform | Java |
Nonreflection seismic processing utilities[edit]
| Name | Description | Originator | License | Platforms | Language | Notes |
|---|---|---|---|---|---|---|
| ObsPy[29] | Seismology toolbox | Moritz Beyreuther et al. | LGPL | Cross-platform | Python | Uses Numpy and Cython |
| PAMGUARD[30] | Passive acoustic monitoring for marine mammals | Multiple workers | GPL | Linux, Windows, OS X | Java | Plug-in-able |
| SCEC Broadband Platform[31] | Ground Motion Simulation | SCEC Community Modeling Environment | Apache 2 | Linux | Python, C, Fortran | Uses Numpy and SciPy |
| Sesarray[32] | Signal processing for ambient vibrations | Joseph Fourier University, University of Potsdam | GPL | Linux, Windows, OS X | C, C++ | Includes geopsy (signal processing) & dinver (inversion) |
| Seismic Handler[33] | Signal processing for earthquakes | SZGRF | GPL | Linux, Solaris | C, Python | |
| STK[34] | Signal processing for earthquakes | Dominique Reymond | GPL | Unix, Linux, Windows | C | |
| TauP[35] | Travel-time & ray-path calculation | University of South Carolina | GPL | Cross-platform | Java | |
| smartRefract[36] | Refraction seismic interpretation | Simone Pittaluga | GPL | Cross-platform | Java | Based on GRM (Palmer) |
Modeling and inversion packages[edit]
| Name | Description | Originator | License | Platforms | Language | Notes |
|---|---|---|---|---|---|---|
| devito[37] | Symbolic finite difference engine, including seismic modeling and inversion | Fabio Luporini, Matthias Louboutin, et al. | MIT | Cross-platform | Python | Uses Numpy and SymPy |
| Fatiando a Terra[38] | Geophysical modeling and inversion | Leonardo Uieda et al. | BSD | Cross-platform | Python | Uses Numpy and Cython |
| PyGMI[39] | 3D interpretation and modelling of magnetic and gravity data | Patrick Cole | GPL | Cross-platform | Python | |
| SimPEG[40] | Simulation and Parameter Estimation in Geophysics | Rowan Cockett et al. | MIT | Cross-platform | Python | Uses Numpy and SciPy |
| pyGIMLi[41] | Geophysical Inversion and Modelling Library | Carsten Rücker, Thomas Günther, and Florian Wagner | Apache 2 | Cross-platform | Python | Uses Numpy |
| OCCAM1DCSEM[42] | An Inversion Program for Generating Smooth 1D Models from Controlled-Source Electromagnetic and Magnetotelluric Data. | Kerry Key, SEMC | GPL | Cross-platform | Fortran | Optional plotting and editing routines are in Matlab. |
| 2DMT[43] | Occam's inversion for 2D magnetotelluric (MT) modeling | Steven Constable et al., SEMC | Unclear | Cross-platform | Fortran | Optional plotting and editing routines are in Matlab. |
| empymod[44] | Full 3D electromagnetic modeller for 1D VTI media | Dieter Werthmüller | Apache 2 | Cross-platform | Python | Uses Numpy and SciPy |
| extrEMe[45] | Accurate and scalable 3-D MT forward solver based on a contracting integral equation method | M. Kruglyakov, A. Geraskin, A. Kuvshinov | modified GPL 2 | Cross-platform | C# | |
| GIEM2G[46] | Gnu Integral Equation Modeling in ElectroMagnetic Geophysics | Mikhail Kruglyakov, Lidia Bloshanskaya | GPL 2 | Cross-platform | Fortran | |
| gprMax[47] | Ground Penetrating Radar (GPR) 3D modelling | Antonis Giannopoulos, Craig Warren, et al. | GPL 3 | Cross-platform | Python, Cython |
Visualization, interpretation, analysis packages[edit]
| Name | Description | Originator | License | Platforms | Language | Notes |
|---|---|---|---|---|---|---|
| OpendTect[48] | Geoscience interpretation and visualization | dGB Earth Sciences | GPL or custom | Cross-platform | C++ | Interfaces with Petrel, Madagascar, GMT, Google Earth/Maps |
| GeoTriple for Oil&Gas Exploration[49] | Geoscience data management, display and analysis | Geoforge project | LGPL | Cross-platform | Java | Interfaces with WorldWind |
| GeoCraft[50] | Geophysical analysis and visualization | ConocoPhillips | MIT | Cross-platform | Java | |
| qiWorkBench[51] | Geophysical interpretation and visualization | BHP Billiton Petroleum | GPL, BSD | Cross-platform | Java | |
| Generic Mapping Tools[52] | Map generation and analysis | Lamont-Doherty and University of Hawaii | GPL | Cross-platform | C | Implemented in OpendTect |
| ParaViewGeo[53] | Geoscience extension of ParaView | KitwareParaView, MIRARCO | BSD | Cross-platform | C++, Python | Oriented towards mining |
| GI[54] | Geophysical interpretation and visualization | Unclear | Cross-platform | C++, Qt | Alpha version | |
| FischerLab[55] | Fischer Plots and Sequence Stratigraphy | Adewale Amosu & Yuefeng Sun, Texas A&M University | Modified BSD | Cross-Platform | Matlab | Free to use |
Not true free and open-source projects[edit]
The following projects are not free and open-source. They have unknown licensing, licenses which place some restriction on use or redistribution, or depend on non-open-source software like MATLAB, and thus do not meet the Open Source Definition from the Open Source Initiative. (For example, the license may rule out use by certain people or for certain purposes, e.g., in a commercial context.) They are included here because they may be of interest for those in an academic environment or access to tools like MATLAB.
| Name | Description | Originator | License | Platforms | Language | Notes |
|---|---|---|---|---|---|---|
| GeoFEST[56] | Fault and terrain visualization | Greg Lyzenga & Jay Parker, Jet Propulsion Laboratory | Unclear | Unix, Linux | C | Hosted by Open Channel Foundation[57] |
| MSLT[58] | Finite element stress-strain modeling | Peggy Li & Herb Siegel, Jet Propulsion Laboratory | Unclear | Unix, Linux, OS X | C | |
| GeoSeis[59] | Processing seismic refraction data | Muhammed Celik, Kocaeli University | Freeware | Windows | Visual Basic | Fully free after v. 1.3.8 |
| MARE2DEM[60] | 2D Inversion of CSEM and MT Data | Kerry Key, Scripps Institution of Oceanography | Freeware, GNU open source | OS X, Linux, Windows | Fortran | Free to use, needs a valid MATLAB license to build models |
| GPRSoft Lite[61] | GPR Data Visualization | Geoscanners AB | Freeware | Windows | GSF, DZT, RAD3, DT1, formats supported | |
| GP Workbench[62] | GPR processing | USGS | Unclear | Windows | C++ | SU format |
| Seismic Lab[63] | Seismic processing toolbox | Mauricio Sacchi, University of Alberta | GPL | Cross-platform | MATLAB | Needs MATLAB |
| CREWES[64] | Seismic processing toolbox | Gary Margrave, University of Calgary | Custom, free for non-commercial use | Cross-platform | MATLAB | Needs MATLAB |
| SegyMAT[65] | Read and write SEG-Y files | Thomas Mejer Hansen, Univ. of Copenhagen | LGPL | Cross-platform | MATLAB | Needs MATLAB |
| IMAGE2SEGY[66] | Image converter | Marcel.lí Farran, Institut de Ciències del Mar | Creative Commons | Cross-platform | MATLAB | Needs MATLAB & SegyMAT |
| SW3D[67] | Seismic processing | Vlastislav Cerveny, Charles University | Unclear | |||
| rayinvr[68] | 2D traveltime inversion | Colin Zelt, Rice University | Custom, non-commercial use only | Unix, Linux | Fortran 77, C | |
| fast[69] | 3D traveltime tomography | Colin Zelt, Rice University | Custom, non-commercial use only | Unix, Linux | Fortran 77, C | |
| passeis[70] | Passive seismic analysis | Haishan Zheng, University of Saskatchewan | Unclear | Cross-platform | MATLAB | Needs MATLAB |
| seismon[71] | Processing for earthquakes | Stefan Mertl | GPL | Cross-platform | MATLAB | Needs MATLAB |
| PyShottab[72] | Processing for ocean-bottom seismic | Dalhousie University | Unclear | Cross-platform | Python | Windows binary |
| IGeoS (formerly SIA)[73] | Geophysical processing and analysis | University of Saskatchewan | Custom, free for non-commercial use | Unix, Linux | C++ | Interfaces with SU, GMT |
| Seizmo[74] | Global seismic analysis | Garrett Euler, Washington University in St. Louis | Unclear | Cross-platform | MATLAB | Octave-compatible |
| WheelerLab [75] | Sequence Stratigraphic Analysis and Chronostratigraphic Analysis (Wheeler Diagrams) | Adewale Amosu & Yuefeng Sun, Texas A&M University | Modified BSD | Cross-Platform | MATLAB | Needs Matlab and SegyMAT |
Collections[edit]
3d Resistivity Inversion Software Store Download
| Name | Description | Originator | License | Platforms | Language | Notes |
|---|---|---|---|---|---|---|
| SEG Software Repo[76] | Open source codes that were made available together with published articles in the journal Geophysics by the Society of Exploration Geophysicists SEG. | Various authors | SEG license and others | Variable | Variable | Static repo. Maintained versions might be found on other places. |
| P233 Suite[77] | Open source codes for EM data (1D, 2D, 3D) from 25 years of investigation by CSIRO, funded by AMIRA. | CSIRO | Public Domain | Cross-Platform | Fortran | |
| Markku Pirttijärvi[78] | Free (but mostly not open-source) software by Markku Pirttijärvi; mostly EM, gravity and magnetic data. | Markku Pirttijärvi | Free to download | Windows | Fortran | Free, not open source |
| Geoscience Australia's Airborne Electromagnetic Inversion Software[79] | Open source codes for inverting and forward modelling airborne electromagnetic (AEM) data: GAFORWARDMODELTDEM - 1D forward modelling . GALEISBSTDEM - deterministic 1D sample by sample inversion. GARJMCMCTDEM - stochastic 1D sample by sample inversion Siti dove trovare keygen mac torrent. All hardware and physical products are subject to the standard Italian VAT rate of 22%. IMPORTANT NOTICE to all EU customers. | Geoscience Australia Ross C. Brodie | Creative Commons 4.0 Attribution (BY). Free to download | Cross-Platform | C++, | Some third party software dependencies. (Specified within). |
Probably defunct projects[edit]
The following projects have seen very little activity for more than a year.
| Name | Description | Originator | License | Platforms | Language | Notes |
|---|---|---|---|---|---|---|
| openGPR[80] | GPR processing and interpretation | Mats Schuh | GPL | Linux | Python | No longer in active development |
| OpenICarre | Integrated interpretation system | IFP | ||||
| MagIC-Py[81] | Magnetic data processing | Python | ||||
| geoid[82] | Geological mapping | |||||
| ART[83] | Ray tracing | |||||
| GPCPP[84] | ||||||
| Seismic Refraction Tomography[85] | GPL |
References[edit]
- ^'Madagascar'. reproducibility.org. Retrieved 2016-06-13.
- ^'FreeUSP Download'. freeusp.org. Retrieved 2016-06-13.
- ^'Data Dictionary System: Home'. freeusp.org. Retrieved 2016-06-13.
- ^'Archived copy'. Archived from the original on 2013-06-14. Retrieved 2019-07-08.CS1 maint: Archived copy as title (link)
- ^'CWP'. cwp.mines.edu. Retrieved 2016-06-13.
- ^'It works!'. Archived from the original on 2009-08-26. Retrieved 2016-06-13.
- ^'Index of /Arco'. freeusp.org. Retrieved 2016-06-13.
- ^'Home [Stanford Exploration Project]'. sepwww.stanford.edu.
- ^'GêBR Project'. gebrproject.com. Retrieved 2016-06-13.
- ^'CWP'. cwp.mines.edu. Retrieved 2016-06-13.
- ^'BotoSeis download SourceForge.net'. botoseis.sourceforge.net. Retrieved 2016-06-13.
- ^'CSIRO Petroleum and Geothermal research'. www-old.dpr.csiro.au. Retrieved 2018-02-01.
- ^'gsegyview download SourceForge.net'. sourceforge.net. Retrieved 2016-06-13.
- ^'GPLIB++: GPLib++ documentation'. gplib.sourceforge.net. Retrieved 2016-06-13.
- ^'JavaSeis download SourceForge.net'. javaseis.org. Retrieved 2016-06-13.
- ^'kogeo - a free and open toolkit for 2d/3d seismic data analysis'. kogeo.de. Retrieved 2016-06-13.
- ^'Dave Hale mines jtk'. inside.mines.edu. Retrieved 2016-06-13.
- ^'JRG - Seismic Processing on Any Computer'. crack.seismo.unr.edu. Retrieved 2016-06-13.
- ^James W. D. Hobro. 'Jive3D'. bullard.esc.cam.ac.uk. Retrieved 2016-06-13.
- ^'PySIT Seismic Imaging Toolbox for Python'. pysit.org. Retrieved 2016-06-13.
- ^S.Pavlukhin. 'ДМНГ – Программы'. dmng.ru. Retrieved 2016-06-13.
- ^'GitHub - statoil/segyio: C and Python library for reading and writing SEG-Y files'. github.com. Retrieved 2017-04-26.
- ^'GitHub - sixty-north/segpy: A Python package for reading and writing SEG Y files'. github.com. Retrieved 2016-06-13.
- ^'Index of /~schwehr/software/seismic-py'. vislab-ccom.unh.edu. Retrieved 2016-06-13.
- ^'SeismiGraphix'.
- ^'Seismic processing system SIOSEIS'. sioseis.ucsd.edu. Retrieved 2016-06-13.
- ^'SLIMpy: SLIMpy'. slim.eos.ubc.ca. Retrieved 2016-06-13.
- ^http://www.csiro.au/products/WaveletExtractor.html
- ^'Home · obspy/obspy Wiki · GitHub'. github.com. Retrieved 2016-06-13.
- ^'PAMGuard Passive Acoustic Monitoring PAM Open Source Software - PAMGuard'. pamguard.org. Retrieved 2016-06-13.
- ^'Broadband Platform - SCECpedia'. scec.usc.edu. Retrieved 2016-06-13.
- ^'Geopsy home: software applications for ambient vibration techniques'. geopsy.org. Retrieved 2016-06-13.
- ^'Seismic Handler'. seismic-handler.org. Retrieved 2016-06-13.
- ^D Reymond. 'STK : Seismic ToolKit written with GTK+'. seismic-toolkit.sourceforge.net. Retrieved 2016-06-13.
- ^'USC Seismology - TauP'. seis.sc.edu. Retrieved 2016-06-13.
- ^'Home'. vs30.it. Retrieved 2016-06-13.
- ^'Devito'. devitoproject.org. Retrieved 2019-01-28.
- ^'Fatiando a Terra: modeling and inversion — fatiando 0.4 documentation'. fatiando.org. Retrieved 2016-06-13.
- ^'Google Project Hosting'. Retrieved 2016-06-13.
- ^SimPEG developers. 'SimPEG'. simpeg.xyz. Retrieved 2016-06-13.
- ^'— GIMLi - Geophysical Inversion and Modelling Library'. www.pygimli.org. Retrieved 2017-06-02.
- ^Newman, Steven Constable, Kerry Key, Robert. 'Scripps Institution of Oceanography Marine EM Laboratory Research Occam 1D CSEM and MT Inversion'. marineemlab.ucsd.edu. Retrieved 2017-06-02.
- ^Newman, Steven Constable, Kerry Key, Robert. 'Scripps Institution of Oceanography Marine EM Laboratory Research Occam 2D MT Inversion'. marineemlab.ucsd.edu. Retrieved 2017-06-02.
- ^'empymod'. empymod.github.io. Retrieved 2017-06-02.
- ^'extrEMe'. bitbucket.org/em_geophysics/extreme. Retrieved 2017-12-26.
- ^'GIEM2G'. github.com/DarthLaran/GIEM2G. Retrieved 2017-12-26.
- ^'gprMax'. www.gprMax.com. Retrieved 2018-01-29.
- ^'OpendTect - Free Open-source Seismic Interpretation Software System'. opendtect.org. Retrieved 2016-06-13.
- ^'GeoTriple - Oil&Gas Exploration - About'. geoforge.org. Retrieved 2016-06-13.
- ^'GeoCraft Github repository'. github.com. Retrieved 2016-08-31.
- ^http://qiworkbench.org[permanent dead link]
- ^'Wiki - GMT - GMT — The Generic Mapping Tools'. gmt.soest.hawaii.edu. Retrieved 2016-06-13.
- ^'Acfas-Sudbury'. paraviewgeo.mirarco.org. Retrieved 2016-06-13.
- ^'GI download SourceForge.net'. sourceforge.net. Retrieved 2016-06-13.
- ^'View PDF'. www.searchanddiscovery.com. Retrieved 2017-12-02.
- ^'GeoFEST'. physics.hmc.edu. Retrieved 2016-06-13.
- ^'Open Channel Foundation: Welcome'. openchannelfoundation.org. Archived from the original on 2001-03-31. Retrieved 2016-06-13.
- ^'Open Channel Foundation: MSLT'. openchannelfoundation.org. Retrieved 2016-06-13.
- ^'GeoSeis - Ana Sayfa'. geoseis.tr.gg. Retrieved 2016-06-13.
- ^'MARE2DEM Modeling with Adaptively Refined Elements for 2D Electromagnetics'. mare2dem.ucsd.edu. Retrieved 2016-06-13.
- ^'GPRSoft – Post-Processing GPR Software'. geoscanners.com. Retrieved 2016-06-13.
- ^'USGS Open-File Report 2006-1365: GP Workbench Manual: Technical Manual, User's Guide, and Software Guide'. pubs.usgs.gov. Retrieved 2016-06-13.
- ^'Signal Analysis and Imaging Group - SeismicLab - Matlab Scripts for Seismic Data Processing'. seismic-lab.physics.ualberta.ca. Retrieved 2016-06-13.
- ^'CREWES Matlab Toolbox'. crewes.org. Retrieved 2016-06-13.
- ^'SegyMAT : A Matlab and Octave toolbox for reading and writing SEG-Y formatted files'. segymat.sourceforge.net. Retrieved 2016-06-13.
- ^'IMAGE2SEGY'. icm.csic.es. Retrieved 2016-06-13.
- ^'SW3D'. sw3d.mff.cuni.cz. Retrieved 2016-06-13.
- ^'RAYINVR'. terra.rice.edu. Retrieved 2016-06-13.
- ^'FAST'. terra.rice.edu. Retrieved 2016-06-13.
- ^http://www.geoconvention.org/2009abstracts/151.pdf
- ^'Archived copy'. Archived from the original on 2013-01-28. Retrieved 2013-01-31.CS1 maint: Archived copy as title (link)
- ^'Archived copy'. Archived from the original on 2011-07-06. Retrieved 2009-09-25.CS1 maint: Archived copy as title (link)
- ^'IGeoS (formerly SIA) geophysical and seismic processing and data analysis'. seisweb.usask.ca. Retrieved 2016-06-13.
- ^'Project SEIZMO - A Matlab & Octave Toolbox for Earthquake Seismology'. epsc.wustl.edu. Retrieved 2016-06-13.
- ^Amosu, Adewale; Sun, Yuefeng (2017). 'WheelerLab: An interactive program for sequence stratigraphic analysis of seismic sections, outcrops and well sections and the generation of chronostratigraphic sections and dynamic chronostratigraphic sections'. SoftwareX. 6: 19–24. Bibcode:2017SoftX..6..19A. doi:10.1016/j.softx.2016.12.003.
- ^'software.seg.org'. software.seg.org. Retrieved 2017-12-04.
- ^'P233 Suite'. p223suite.sourceforge.net. Retrieved 2017-12-04.
- ^'Markku Pirttijärvi'. wiki.oulu.fi/pages/viewpage.action?pageId=20677906. Retrieved 2017-12-04.
- ^'GALEI'. github.com/GeoscienceAustralia/ga-aem.git. Retrieved 2018-03-14.
- ^'openGPR'. opengpr.sourceforge.net. Retrieved 2016-06-13.
- ^'MagIC-Py download SourceForge.net'. magic-py.sourceforge.net. Retrieved 2016-06-13.
- ^'Geoid download SourceForge.net'. geoid.sourceforge.net. Retrieved 2016-06-13.
- ^'Project ART at sourceforge.net'. artsystem.sourceforge.net. Retrieved 2016-06-13.
- ^'GeoPhysical Calculation Plus Plus download SourceForge.net'. gpcpp.sourceforge.net. Retrieved 2016-06-13.
- ^'Seismic Refraction Tomography download SourceForge.net'. tomoseis.sourceforge.net. Retrieved 2016-06-13.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Comparison_of_free_geophysics_software&oldid=910731376'
2D resistivity inversion of ERT data
Deployment of a permanent electrical resistivity tomography profile on a longitudinal section of an active landslide.
Electrical resistivity tomography (ERT) or electrical resistivity imaging (ERI) is a geophysical technique for imaging sub-surface structures from electrical resistivity measurements made at the surface, or by electrodes in one or more boreholes. If the electrodes are suspended in the boreholes, deeper sections can be investigated. It is closely related to the medical imaging technique electrical impedance tomography (EIT), and mathematically is the same inverse problem. In contrast to medical EIT, however, ERT is essentially a direct current method. A related geophysical method, induced polarization (or spectral induced polarization), measures the transient response and aims to determine the subsurface chargeability properties.
History[edit]
3d Resistivity Inversion Software Store In India
The technique evolved from techniques of electrical prospecting that predate digital computers, where layers or anomalies were sought rather than images.Early work on the mathematical problem in the 1930s assumed a layered medium (see for example Langer, Slichter). Andrey Nikolayevich Tikhonov who is best known for his work on regularization of inverse problems also worked on this problem. He explains in detail how to solve the ERT problem in a simple case of 2-layered medium. During the 1940s, he collaborated with geophysicists and without the aid of computers they discovered large deposits of copper. As a result, they were awarded a State Prize of Soviet Union.
Andrey Nikolayevich Tikhonov, the 'father of ERT'
When adequate computers became widely available the inverse problem of ERT could be solved numerically, and the work of Loke and Barker at Birmingham University was among the first such solution, and their approach is still widely used.
With the advancement in the field of Electrical Resistivity Tomography (ERT) from 1D to 2D and now-a- days 3D, ERT has explored many fields. The applications of ERT include fault investigation, ground water table investigation, soil moisture content determination and many others. In industrial process imaging ERT can be used in a similar fashion to medical EIT, to image the distribution of conductivity in mixing vessels and pipes. In this context it is usually called Electrical Resistance Tomography, emphasising the quantity that is measured rather than imaged.
See also[edit]
References[edit]
- R.E. Langer, On an inverse problem in differential equations, Bull Am Math Soc, 39, pp 814–820, 1933.
- L.B. Slichter, The interpretation of the resistivity prospecting method for horizontal structures, J Appl Phys, v4, pp 307–322, 1933.
- R.E. Langer, On determination of earth conductivity from observed surface potentials, Bull Am Math Soc, 42, pp 747–754, 1936.
- Tikhonov, A. N. (1949). О единственности решения задачи электроразведки. Doklady Akademii Nauk SSSR (in Russian). 69 (6): 797–800.
- A.P. Calderón, On an inverse boundary value problem, in Seminar on Numerical Analysis and its Applications to Continuum Physics, Rio de Janeiro. 1980. Scanned copy of paper
- Loke, M.H. (2004). Tutorial: 2-D and 3-D electrical imaging surveys(PDF). Retrieved 2007-06-11.
- M.H. Loke, and R.D. Barker, Rapid least-squares inversion of apparent resistivity pseudo-sections using quasi-Newton method: Geophysical Prospecting, 48, 181–152, 1996.
- M.H. Loke, and R.D. Barker, Practical techniques for 3D resistivity surveys and data inversion: Geophysical prospecting, 44, 499–523, 1996.
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