March 2026 News
FDEM Tools
Considerable rework has been made to the FDEM tools which has been done in consideration of the release of several new FDEM instruments with new levels of accuracy and capability beyond older instruments. We have augmented the data import dialogues, smoothed out the user import procedures and cleaned out any errors in the import functions. We have also improved the accuracy of the FDEM halfspace inversions, extended their functionality to more configurations and improved computation speeds. In particular, we have added PRP configurations considering for, in particular, the Promis and DualEM systems. We have also augmented the LIN apparent resistivity conversions for PRP configurations to and from instrument units.
Major improvements have been made to layered earth inversions for these instruments. This has been done for both the Trust and Occam style inversions. New instrument configurations are now supported and one particular new and very useful capability is selectable Inphase and Out of Phase data for each component and frequency individually. This augmentation is due to the presence, on the market, of instruments that now gather quantifiable Inphase data. In addition, alterations and improvements have been made to the freespace plate inversions for FDEM data in particular considering MaxMin and Promis data.
3D Inversion Interfaces:
Interface dialogues have been enhanced and additional inversion options added for all our 3D inversion applications [ Resistivity, Gravity, Magnetics, CSEM, CSAMT ].
Magnetic Data Tools
Work has been done to improve and extend the ability to perform complex model simulations including augmentation to the multi-core and array processing components. The enhanced simulation of magnetic models containing DEM topography allowing for the inclusion of magnetic property contrasts within the topography which is particularly useful in areas of elevated terrain. The 3D inversion tools have also been augmented with issues including; the provision to provide susceptibility continuity across boundaries in the inversion grid when cell thickness changes. Inversion to a constant depth in surveys with high topographic variations has been added, improved cross-sectioning with augmented 2D viewing of the cross-sections, editing of inversion grids to extract critical structures, provision to export extracted grids to CAD format including support for AutoCAD. Other processing issues include the addition of the calculation of derivatives via DFT which uses rectangular grid cells to maintain along profile data resolution and significantly reducing cross line artifacts. This capability now provides significantly increased clean and accurate derivatives over traditional FFT techniques. New extraction techniques have been added to remove extrapolated derivatives outside the survey area particularly for irregular survey lines thus removing artifacts at the edges particularly when using the derivative inversion grids in an inversion. Additionally, we now provide aeromagnetic compensation for drone data and gradient data. IGRF14 has been enabled allowing determination throughout a survey for changes in date, elevation and time.
Filtering tools
New filtering capabilities have been added. These include a data extrapolation algorithm and two interpolation algorithms when data stations are irregularly distributed. One algorithm is for along profile and the other are 2D spatial interpolation. These algorithms can interpolate both your data and your stations positions.
Gravity Data Tools
We have considerably improved the isostatic corrections introducing new simulation techniques allowing for larger and more detailed corrections. These corrections are extremely important in areas of high elevation as well as in areas near ocean coasts and for marine surveys. Additionally, we have added improved bathymetry corrections and added corrections for the effects of marine sediments. These latter corrections being important not just for marine and harbour work but also for island and coast line data.
In terms of the gravity inversions we have augmented memory allocation as well as the use of more extensive and detailed DEM topography in the user model grid. We have also enhanced simulation of gravity models with DEM topography grids and enabled inversion of gravity derivatives to be suitable for airborne tensor systems as well as for DFT derived derivatives from ground data. The derivation of DFT derivatives has been significantly improved particularly in terms of removing edge effects.
Display and Filtering Tools
There are many items in this area of development but some of these improvements include:
- Augmented cross section visualization tools for both 3D and 1D inversions principally for gravity, magnetics, resistivity and CSEM inversions as well 1D stacked TDEM and FDEM inversions
- Extended tools to export models and model data
- Augmented grid information display
- Improved cleaning of DFT processed grids such as derivatives, RTP, upward continuation
- New precision extrapolation removal tools for multi-parameter grids
General Features
- Augmented and improved plotting tools
- Improved changing of system configurations for inversion and simulation
- Enlarged system configuration capabilities
- Changes to controls and interfaces to improve readability and functionality
- Improvements to imports as well as augmentation of imports. Examples include FDEM, VLF, MT, AFMAG, airborne TDEM and the import of AMIRA formatted data
- Improved conversion of one 3D algorithm primitive to another
- Improved editing capabilities of models in a plan section survey display
- added classic Geotiff file export for maps
EM Simulation Issues
In addition to a new algorithm with dramatically increased capabilities, there has been a variety of improvements to older versions of some of the EM simulation algorithms. These include:
- improved accuracy of low frequency background response of magnetic dipole sources
- improved background response accuracies for FD and TD IP models
- improved storage and recovery of Greens functions [ .dmp archives]
- improved background responses for grounded sources - i.e. CSEM, CSAMT, IP
- improved prism/poly simulation when the top of a target crosses near or immediately at a layer interface. Note that in these cases, current flow between the top and bottom part of the target is maintained
- we have enhanced VLF survey configuration tools
- we have added VLF Controlled Source capabilities
- major improvements to simulation of edited 3D Resistivity inversion models
Visualization Additions
Our visualization tools have been improved in order to enable visualization of 3D models and inversions from different survey types. For example, the joint visualization of a 3D resistivity inversion models with an EM model (e.g. thin sheets or spheres) from a borehole survey. Or the joint visualization of 3D focused airborne magnetic inversions with airborne TDEM plate models. These additions include
- Visualization of mixed 3D primitives which allows for visualization of primitives from different algorithms
- Mixing inversion grids with 3D primitives
- Inversion grid editing. This allows to remove, for example, small contrast cells to focus on the more important cells or the removal of cells above or below certain depths or the removal of portions of the inversion volume conversion to CAD formats
New 3D EM/IP Complete and Exact Simulation Algorithm
Archive
| Title | Date | Summary |
| June 2024 News | 20 Jun 2024 | EMIGMA V11 released. New 3D thin-sheet plate inversion with integrated layered background. Improvements and extensions to all the 3D Inversion applications. Accuracy improvements to both inductive and galvanic 3D simulation algorithms. Updates to online HELP, and more. (full article) |
| March 2026 News | 18 Mar 2026 | Considerable rework has been made to the FDEM tools which has been done in consideration of the release of several new FDEM instruments. Major improvements have been made to layered earth inversions for these instruments. (full article) |
| Dec 2024 News | 4 Dec 2024 | Learn about developments dealing with inductive thin-sheet inversion, 3D earth models from a ground current source(CSEM) and more. (full article) |
| March 2023 News | 15 Mar 2023 | We are proud to announce the release of EMIGMA V10.1 geophysics software. Many improvements have been made to its various modules. |
| July 2022 - EMIGMA V10 and QCTool V5.0.0 | 25 Jul 2022 | Details of QCTool upgrades may be found on the QCTool website qctool.ca. More than 2 years of development have gone into the upgrades in EMIGMA V10 (full article) |
| July 2020 News | 8 Jul 2020 | Many EM simulation, processing and filtering algorithms have been augmented in our EMIGMA geophysics software. (full article) |
| March 2020 - EMIGMA V9.5.5 now available | 11 Mar 2020 | We are pleased to announce that a new version of our EMIGMA geophysics software has been released. It includes many additions to the inversion, simulation and visualization tools. |
| Oct 2019 - 3D Resistivity Inversion | 15 Oct 2019 | We have completed an extensive upgrade to the 3D resistivity inversion in our geophysics software to allow both surface to borehole and borehole to borehole data. (full article) |
| June 2019 - QCTool new features | 12 Jun 2019 | Many new features have been recently added to our QCTool software that will aid in processing geophysics data. (full article) |
| Jan 2019 - Magnetic Compensation | 22 Apr 2019 | We have released a new version of our aeromagnetic processing and magnetic compensation geophysics software. The new version is suitable for airborne, ground and marine surveys. (full article) |
| Oct 2017– CSEM and V9.5 release | 6 Oct 2017 | We are pleased to announce the release of V9.5 of our geophysics software effective October 5, 2017. This past year, we have enabled the use of Land Based CSEM survey interpretation. (full article) |
| Oct 2016 - Release of Version 9.1 | 25 Oct 2016 | While there are many minor improvements and additions to this version of our geophysics software, we wish to touch on only IP modeling, TDEM inversion and the inversion viewer. (full article) |
| July 2016 - Land Based CSEM | 27 Jul 2016 | Our geophysics software now supports land based CSEM including data processing, editing , plotting, gridding, modeling (synthetic data) and 1D and 3D inversion. (full article) |
| June 2016 – Extensions to 1D TDEM inversion capabilities | 21 Jun 2016 | We have added a large number of new functionalities to our 1D TEM inversion tools including simultaneous inversion of data from different base frequencies (full article) |
| May 2016 - New Simulation Capabilities | 11 May 2016 | Inductive Plate Algorithm - FAST! We have implemented a new compiler and other engineering aspects. The result is up to 50 times increased speed of computation! (full article) |
| CGG Airborne Systems | 9 Jan 2016 | Support for CGG 100% normalized step response data has been implemented and is released in today's updates. (full article) |
| Holiday prices | 15 Dec 2015 | Holiday pricing is now available for some licenses until Jan 1,2016. See the prices page for details. |
| Oct 2015 – EMIGMA V9.0 release | 27 Oct 2015 | We are pleased to announce a dramatically new version of the EMIGMA geophysics software. Changes include upgrades to computation speeds and accuracy and network dongle capability. (full article) |
| May 2015 - EMIGMA developments | 14 May 2015 | Some exciting features added to EMIGMA include new imports, better geophysical data and error handling, as well as powerful modeling, inversion and mapping. (full article) |
| July 2014 - New EMIGMA Developments | 25 Jul 2014 | With the introduction of new ground FEM systems, we have upgraded our tools for the newer systems particularly PROMIS, DualEM and GEM2. (full article) |
| July 2014 - Expansion of MT Tools | 24 Jul 2014 | Last year, we completed major upgrades to our MT licenses but the growing popularity for these products is encouraging further additions. (full article) |
| April 2014 - New IP/Resistivity Developments | 22 Jul 2014 | This year, we have released major upgrades to our Resistivity and IP licenses. We believe that EMIGMA is now the most comprehensive software package for such data. (full article) |
| Sept 2013 News | 17 Sep 2013 | We have worked on our geophysics software to make the user interfaces more user-friendly. There has also been a strong focus on data import capabilities. (full article) |
| June 2012 News | 22 Jun 2012 | Our geophysics software tools have undergone quite a few developments in the area of processing and visualization of magnetotelluric and CSAMT data. (full article) |
| March 2012 News | 9 Mar 2012 | We are excited to present to you some of the many new features have been added to our geophysics products including enhancements to EMIGMA's 3D inversion (full article) |
| 3D CAD Import/Exports | 31 Oct 2011 | We have augmented our geophysics software tools for interacting with 3D CAD applications. (full article) |
| QCTool Version 2.3 released | 27 Sep 2011 | This new version of our software has been recompiled and optimized for Windows Vista and Windows 7 among other new features. (full article) |
| Sept 2011 News | 1 Sep 2011 | Our EMIGMA geophysics software has had many improvements over the last several months including enhancements to tem and mag inversion as well as 3d resistivity modeling. (full article) |
| July 2011 - New MMR tools and license | 6 Jul 2011 | New simulation algorithms have been developed in our geophysics software for ground and borehole MMR surveys. The MMR license also includes borehole DC magnetic geophysical modeling. (full article) |
| EMIGMA 8.6 is now available | 24 Jun 2011 | Licensed users with an up to date maintenance may download the latest release of our geophysics software here. |
| March 2011 News | 4 Mar 2011 | There have been some notable additions to EMIGMA during the fall of 2010 and early winter 2011. (full article) |
| EMIGMA V8.5 has been released | 29 Jul 2010 | We are pleased to announce the immediate release of version 8.5 of EMIGMA. EMIGMA users with a license currently under maintenance are eligible for a free upgrade to this latest version. (full article) |
| What's new in EMIGMA | 28 Jan 2010 | Many new features were included in EMIGMA during the fall of 2009 (full article) |
| New features in EMIGMA and QCTool | 8 Jul 2009 | Many new capabilities have been added to our products including the support of additional import formats as well as enhanced simulation algorithms. (full article) |
| Time Domain Inversion | 6 Jul 2009 | While EMIGMA has contained one-dimensional inversion for TEM for a few years now, we have recently released two significantly enhanced versions. (full article) |
| Updated Demo Databases | 17 Apr 2009 | The demo databases available in the downloads area of this website have received some substantial modifications. (full article) |
| New TDEM Demo Database | 25 Mar 2009 | A new demo database exclusively containing time domain data for ground and borehole surveys is available. (full article) |
| QCTool Price Increase | 5 Mar 2009 | As of April 1, 2009, the price for QCTool will be $200 CAD. |
| Download GeoTutor IV | 20 Feb 2009 | GeoTutor IV is now available for download from our website. (full article) |
| Magnetic Compensation Plug-In | 16 Jan 2009 | We now offer a plug-in for Geosoft Oasis to perform magnetic compensation on aeromagnetic data contained within your .gdb files. (full article) |
| EMIGMA video now available | 2 Dec 2008 | A training video demonstrating the power of EMIGMA can now be downloaded for free from the Downloads section of our website. (full article) |
| New Modeling Capabilities | 10 Nov 2008 | We now offer forward modeling capabilities for MTEM and CSEM as well as for airborne MT applications such as ZTEM. (full article) |
| New terraTEM import and functionality added | 26 Jun 2008 | EMIGMA now has the ability to import data generated by the terraTEM instrument. (full article) |
| GeoTutor IV is now available | 11 Jun 2008 | We are proud to announce the immediate release of GeoTutor IV. This new version introduces the ability to register online using a customized serial number in the same way as Petros Eikon's QCTool. (full article) |
| EMIGMA V8.1 is now available | 28 Apr 2008 | We are happy to announce the immediate release of EMIGMA V8.1, which brings with it complete compatibility with Windows Vista as well as a number of new capabilities and improvements. (full article) |
| Buy Our Software Online | 11 Feb 2008 | Recently added to our Price page is the ability to securely purchase various PetRos EiKon products online using PayPal. (full article) |
| EMIGMA V8.1 Coming Soon | 4 Feb 2008 | We are very pleased to announce the upcoming release of EMIGMA 8.1 on March 31. This will be the first EMIGMA product to be compatible with Windows Vista. (full article) |
| Improved TEM Inversion | 3 Jan 2008 | While EMIGMA has contained one-dimensional inversion for TEM for a few years now, we have recently released a dramatically enhanced version. (full article) |
| TEM-FAST added to EMIGMA | 7 Dec 2007 | Petros Eikon has enhanced one of its flagship products with TEM-FAST electromagnetic geophysical data capabilities. (full article) |
| PetRos EiKon Services | 21 Nov 2007 | We have many geophysical services that can conform to your needs. Our experience extends to data in the areas of electromagnetics, magnetics and gravity. (full article) |
| QCTool V2.2 Now Available | 9 Nov 2007 | Visit our downloads area to obtain QCTool so you can experience this latest version first hand. (full article) |
| EMIGMA V7.8 - New Features | 20 Aug 2007 | Now in its third major release, EMIGMA V7.8 has an unequaled array of functions and now provides virtually all of your processing, modeling and inversion requirements for EM, Magnetics, Gravity, IP and Resistivity (full article) |
| New release of QCTool (August, 2007) | 20 Aug 2007 | New release of QCTool 2.1(August, 2007). (full article) |
| EMIGMA Update | 1 Aug 2007 | Users with an active maintenance contract can now download a new EMIGMA update for July 27. |
| Purchase QCTool via PayPal | 23 Jun 2006 | You can now purchase a QCTool license online via PayPal. You can use either a credit card or, if you live in USA or Canada, your bank account. |
| PetrosSuite Teaching & Research Software | 31 May 2006 | PetrosSuite - a new Teaching & Research software bundle for Academics. (full article) |
| New Data Processing and Interpretation Services | 31 May 2006 | New Interpretaton and Processing Services now available. (full article) |
| Aeromagnetic Compensaton now available in QCTool | 31 May 2006 | Aeromagnetic Compensation now available in QCTool (May, 2006) (full article) |
| Two New Technical Papers | 30 May 2006 | Dr. Cheng studies the 3D airborne TEM modeling capabilities of EMIGMA and other available programs. In the second by Prof. Duckworth, he discusses among other things comparisons between EMIGMA's modeling results and his own scale model results. (full article) |
| Live Chat and Support | 8 May 2006 | You can now talk to us live during our work hours (9:30am-7:30pm EST/EDT). Feel free to ask us any questions you may have, but please be patient. It may take a while for someone to answer. To use the chat system, choose a nickname and click "Login". If the nickname you chose is not available, you can set a new one with "/nick newname" (without the quotes) or just reload the page and retry. |
| New release of EMIGMA V7.8 now available | 30 May 2005 | New release of EMIGMA V7.8 (December, 2005) now available (full article) |
| May 2005 News | 30 May 2005 | Conductivity Depth Imaging now available in EMIGMA V7.8. |
| May 2005 News | 30 May 2005 | New Impulse to Step Processing now available in EMIGMA V7.8. |
| May 2005 News | 30 May 2005 | QCTool now available for Scintrex CG5. |
| May 2005 News | 30 May 2005 | Imports, Modelling, Inversion, CDI's available for VTEM and AeroTeM systems. |
| May 2002 News | 1 May 2002 | Introducing EMIGMA V7.5 (full article) |
| February 2001 News | 1 Feb 2001 | EMIGMA Version 7 Release (full article) |
| July 2000 News | 1 Jul 2000 | EMIGMA V7.0 Ready for Beta Testing (full article) |
| December 1998 News | 1 Dec 1998 | EMIGMA V6.2 at a Glance (full article) |
| February 1998 News | 1 Feb 1998 | New EMIGMA V6.1 Release Now Available (full article) |
| April 1997 News | 1 Apr 1997 | 3D Data Representation and Multiple Plates Now Available (full article) |
| September 1996 News | 1 Sep 1996 | Focus: Improved Induction (full article) |
| February 1996 News | 1 Feb 1996 | Sneak Preview into EMIGMA Version 5 (full article) |
| August 1995 News | 1 Aug 1995 | 3D Resistivity/IP Surveys With EMIGMA Version 4 (full article) |
| July 1995 News | 1 Jul 1995 | EMIGMA Version 3 (full article) |
| October 1994 News | 1 Oct 1994 | New EMIGMA Development (full article) |
| August 1994 News | 1 Aug 1994 | VH Plate Development (full article) |
| July 1994 News | 1 Jul 1994 | MITEC Project (full article) |