Geophysical Data Inversion Solutions

Explore a range of geophysical data inversion solutions from pbEncom. Our range of inversion software has been developed by the University of British Columbia, Geophysical Inversion Facility.

UBC-GIF is at the leading edge of geophysical inversion technology with sponsorship from leading exploration companies and government organizations behind their innovative geophysical data inversion solutions.

UBC-GIF geophysical data inversion solutions

The geophysical data inversion solutions available from pbEncom are:

  • MAG3D and GRAV3D for voxel model based potential field inversion
  • EM1DFM for frequency domain layered inversion
  • DCIP2D and DCIP3D for resistivity and IP inversion


Mag3D and GRAV3D are geophysical data inversion solutions for carrying out forward modelling and smooth inversion of surface airborne and/or borehole magnetic data in three dimensions.


DCIP2D is a geophysical data inversion solution that performs forward modelling and inversion of DC resistivity and IP data in two dimensions. All linear survey surface-array types including non-standard or un-even arrays can be inverted.


DCIP3D is a geophysical data inversion solution that performs forward modelling and inversion of DC resistivity and IP data over a 3D distribution of electrical conductivity and chargeability.

DCIP3D is one of the most advanced 3D inversion codes available in the public domain and can be used to invert complex surveys in variable topographic conditions.


EM1DFM is a powerful geophysical data inversion solution used for the inversion of almost any ground or airborne frequency domain survey data.

Main features of our geophysical data inversion solutions

MAG3D and GRAV3D features:

Four levels of geological constraints are supported by MAG3D and GRAV3D geophysical data inversion solutions. These can be applied prior to commencement of inversion. Geological constraints include:

  • No constraints - results in a smooth distribution of magnetic susceptibility
  • Range limited - easy to implement with improved geological outcomes
  • Starting model - minimum departure constraint for known geology
  • Advanced weighting - the user defines advanced geological constraints

The first constraint is the most commonly used method of inversion but the results are limited in value when available geological data is ignored.

Extensions to Encom ModelVision: UBC Model-Mesh Designer

The UBC Model - Mesh Designer optional module for Encom ModelVision allows you to create both the range limited and starting model constraint styles for MAG3D and GRAV3D which in turn deliver improved geological outcomes.

Encom Discover PA and Encom ModelVision are available from pbEncom for integration of other models and data along with construction of the geological constraints.

DCIP2D features:

With DCIP2D geophysical data inversion solutions you can build the starting models run the inversion and view the results.

The DCIP2D GUI only works with dipole-dipole pole-dipole and pole-pole arrays. Wenner Schlumberger gradient and other arrays can all be inverted but the user interface does not yet handle those types of arrays.

Download the technical manual for more information.

DCIP3D features:

In this geophysical data inversion solution programs in the library work with data that are acquired using general electrode configurations and at arbitrary observation locations either on the earth's surface or in a borehole.

DCIP3D also offers:

  • Full incorporation of 3D surface topography in modelling and inversion
  • No graphical user interface for running the DCIP3D forward or inversion codes
  • View 3D models of conductivity or chargeability with UBC-GIF utility MeshTools3D
  • Build 3D synthetic blocky models with MeshTools3D

View the complete technical model for this geophysical data inversion solution at the UBC-GIF website.

Encom Discover PA can also be used for visualization of the inversion results.

EM1DFM features:

EM1DFM is geophysical data inversion solution suitable for advanced EM users. It is a self-contained program that provides a layered earth inversion engine which can be used for both discrete and smooth inversion outputs.

Features include:

  • Airborne FEM surveys
  • Ground FEM surveys
  • Conductivity inversion
  • Magnetic susceptibility inversion from FEM
  • Flexible EM instrumentation specification
  • XYZ Receiver orientation
  • XYZ Transmitter orientation
  • Discrete layer inversion
  • Smooth layer inversion
  • Powerful UBC-GIF inversion engine

EM1DFM can be used as a companion to EM Flow for the purpose of cross-comparison of the inversion results. Inversion results can be imported into Encom Discover PA for display as sections or in 3D displays.




Note Regarding Support

All UBC-GIF inversion codes are provided on an "as-is" basis and a licence does not provide explicit access to support or upgrades from either Pitney Bowes Software or UBC-GIF, except in the event of "bugs" in the software.

Data Sheets and Brochures

Useful Help and FAQs on UBC-GIF modelling and inversion codes

Product Downloads

UBC-GIF Inversion Software

Technical Papers

User Guided Inversion and Visualisation of Interpretation Confidence
PDF file, 1MB

Pratt, D.A., Foss, C.A. and Roberts, S., ASEG Conference 2006