Geoscience ANALYST Pro Geophysics

Software solution for advanced, geologically-constrained geophysical modelling and inversion, and interpretation across all methods

Geoscience ANALYST Pro Geophysics delivers cutting-edge yet user-friendly geophysical interpretation. It supports all geophysical methods, enabling professionals to analyze and interpret complex subsurface data with ease.

Geoscience ANALYST Pro Geophysics is a comprehensive software solution that fully integrates with VP Suite and SimPEG, and offers a seamless interface with UBC-GIF codes, ensuring streamlined and efficient workflows.

Users of Pro Geophysics can run modelling and inversion codes on their workstations or in high-performance computing (HPC) environments. Through our partnership with DUG, you can also leverage cloud-based high-performance computing at competitive prices for enhanced processing power. All codes can be executed and all data and models can be visualized through the Geoscience ANALYST interface.

Geoscience ANALYST Pro Geophysics is available through annual subscription with pricing tailored to the size of your organization. Your subscription grants membership to the Geoscience ANALYST Pro Geophysics Consortium, which includes software updates, technical support, workshops, and invitations to an annual technology meeting. Licensing options are available for individuals, corporations, academic institutions, government, and non-profit organizations. Additionally, individual UBC-GIF codes can be purchased separately.

Why should you use it?

Comprehensive Geophysical Interpretation

Supports all geophysical methods for versatile data analysis.

Powerful Visualization and User-Friendly Interface

Simplifies complex processes with intuitive tools and powerful visualization capabilities.

Seamless Integration

Fully integrates with VP Suite and SimPEG for enhanced functionality, and offers a seamless interface with UBC-GIF codes.

Cloud High-Performance Computing (HPC)

Leverage cloud-based HPC through our partnership with DUG, offering competitive pricing

Consortium Membership Benefits

Includes software updates, technical support, workshops, and invitations to an annual technology meeting.

”In my opinion, Geoscience ANALYST is quite a unique product since it is not tied to one single coding ecosystem. It allows you to bring in and produce models leveraging inversion codes like VPmg, which is a very different approach to modelling, and also iterations of the UBC codes and SimPEG.

Oleg BrovkoSenior Project Geophysicist at Geofocus

Features Overview

In addition to all the features provided in the free Geoscience ANALYST 3D viewer and Geoscience ANALYST Pro module—such as advanced visualization, import/export capabilities, connectivity, drillhole design, data processing, geophysical modelling, and live links to specialized software—Geoscience ANALYST Pro Geophysics offers even more, including:

Export

  • UBC observation files

Data processing

  • Edge detection
  • Peak finder
  • Automatic anomaly trend line generation across flight lines
  • Polynomial trend removal on 2D grids

Geophysical model and inversion

  • API for running inversions on on-premise or cloud-hosted environments
  • Magnetic component and remanent magnetization modelling and inversion
  • Geologically-constrained inversion
  • Assign 3D grid/block model cells to geological units
  • Geological contact and depth to basement inversion
  • Physical property inversion across all methods
  • 1D EM data inversion
  • Prepare data, create 3D grids, incorporate physical property constraints and run inversions for UBC-GIF and VP Suite programs

VP Suite integration: VPmg, VPem1D

VPem3D Add-on (sold separately)

Fast approximate 3D modelling and inversion for airborne, ground, and downhole TEM data is also available at an additional cost.  VPem3D has been designed for geologically-constrained inversion but is also suitable for unconstrained inversion. Geometry of contacts, as well as conductivity of geological units can be adjusted via inversion. In each geological unit, the conductivity can be homogeneous or heterogeneous.

  • VPem3D converts TEM decays to resistive limits in order to reduce run times by a factor of 10 or more relative to conventional programs
  • VPem3D can invert 3-component moving loop or fixed loop B-field or dB/dt data for virtually any configuration
  • Data options include airborne, ground, and downhole EM time domain systems; x, y, z

SimPEG integration: MVI, Gravity, DC/IP, MT, TEM, FEM

User interface to UBC-GIF (sold separately)

Explore Additional Modules

Free 3D viewer

Geoscience ANALYST 3D viewer allows you to visualize and communicate integrated, multi-disciplinary geoscience data and models. This module is included in Geoscience ANALYST Pro Geophysics.

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Pro

Geoscience ANALYST Pro offers additional functionality for object creation, editing, data processing, interpretation, and exploration targeting. This module is included in Geoscience ANALYST Pro Geophysics.

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Pro Geology

The NEW Geoscience ANALYST Pro Geology module provides an enriched geologist’s toolkit including AI and machine learning methods.

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VP Suite

VP Geophysical modelling

VP Suite algorithms discretize the 3D earth into tightly packed Vertical Prisms containing geological boundaries that separate individual packages of rock. Each model cell knows both its rock type and physical properties. This allows one to think in terms of geologic domains. The number of geological domains from prism to prism can vary, allowing full 3D geological complexity. It can also perform unconstrained inversions.

Data types

  • Gravity: free-air or terrain-corrected data; ground, airborne, or sub-surface gravity; gradiometry (any or all tensor components, plus FALCON Guv/Gne)
  • Magnetics: models true TMI; gradiometry (any or all tensor components, plus TMG); vector magnetics; magnetic amplitude; airborne, ground or sub-surface
  • EM: Horizontal (X, along-line) and vertical (Z) B-field and dB/dt; variety of Slingram and moving loop systems

Constraint types

  • Geometric weights near pierce points and fixed layers
  • Fixed properties at, and added weighting near to, drillholes (exert a radius of influence around the drillhole)
  • Select which lithologies are adjusted and which are fixed
  • Upper and lower property bounds per lithology

Unconstrained inversion

  • Conventional 3D property inversion
  • Apparent density/susceptibility/conductivity
  • 1D AEM: each vertical prism is inverted in 1D within the context of the 3D VP model
  • Geobody inversion
  • Depth to basement

Parameterization

  • Versatile and compact
  • Supports a variety of model styles
  • Facilitates a variety of inversion styles
  • Local models can be incised into regional models
  • Topography explicitly incorporated into the model due to arbitrary cell thickness
  • Homogeneous or heterogeneous lithologic units
  • Each cell knows rock type and property allowing a variety of inversion options
  • Specific control over inversion
  • Inversion can operate directly on a geological model geometry by deforming 3D contacts

VP Forward modelling and inversion styles

VP Suite forward modelling allows you to test your existing geological model against geophysical data for geological model evaluation and validation. The model parameterization supports a wide variety of model styles, which in turn facilitate a variety of inversion styles. Within a single model, domains can be homogeneous, have simple lateral variations, or full 3D heterogeneity. Susceptibility models may incorporate remanence and self-demagnetization.

Forward modelling features

  • Quantitatively test geological concepts
  • Validate geological models
  • Model remanence and/or self-demagnetization
  • Computes true TMI
  • Terrain correction
  • Cover correction
  • Regional modelling and incorporation of regional fields
  • Discrete domain modelling

Geometry inversion features

  • Geological data defines starting model
  • Depth to basement
  • Geobody inversion
  • Soft and hard constraints can be incorporated

Property inversion features

  • Homogeneous domain optimization
    • Bounded properties
    • Recover remanent magnetization direction
    • Invert TMG or magnetic amplitude data
  • Heterogeneous property inversion
    • Discretize domains internally
    • Invert for 3D property variations within domains
    • Solve for lateral property variations to recover apparent density or susceptibility
    • Discretize vertical cells to be constant or variable
    • Allows for conventional unconstrained inversion

Applications of VP models

VP Suite models offer flexibility to support a wide variety of applications beyond simple unconstrained inversion.

Terrain and cover correction

  • Compute data from terrain models to generate the response and correct data
  • Apply response from layers of transported cover/regolith
  • Use density or density contrast values for gravity and gravity gradiometry data

Simple domain modelling

  • Test existing geologic models
  • Compute the response of simple or complex 3D wireframes and compare to measured data
  • Quickly run multiple simulations, varying depth extent, dip, and physical property

Depth to basement modelling

  • Invert for basement geometry for AEM, gravity, and magnetics
  • Guide the model with geological constraints or begin with a simple two-layer model
  • Ideal for greenfield projects
  • Allow for simplified lateral variation in the basement
  • Apply to any geological contact that exhibits a prominent rock property contrast (e.g., top of limestone, basalt dome modelling)
  • Output is a geological surface

Modelling magnetic remanence and self-demagnetization

  • Assign magnetic remanent parameters to geological domains
  • Invert for the bulk property remanent parameters: orientation and intensity (Q-ratio)
  • Utilize data that is weakly dependent on remanent magnetization: total magnetic gradient or magnetic amplitude
  • Modelling uses the true TMI
  • Invoke self-demagnetization in forward modelling and inversion that models the interactions between high-susceptibility cells

Geobody modelling

  • Derive a volume explaining the geophysical response
  • Initialize from depth estimation, prior information, or begin as a zero-thickness layer
  • Represent body as a geologic unit with its own property, bounds, and magnetization parameters

Regional modelling and edge effects

  • VP models live within an enclosing half space rather than a vacuum
  • Incise local models into regional models, explicitly taking the regional response into account
  • Minimizes edge effects
  • Regional models are VP models that can vary in complexity

Rotated models

  • Rotate models to assess the results directly in real world coordinates
  • Data rotation is performed internally and does not need to be done by the user
  • Optimize model mesh for surveys that have oblique layouts or line orientations

Modelling conductivity

  • Invert moving loop, B field, and dB/dt data from airborne central loop and Slingram configurations
  • Each vertical prism is inverted in 1D within the context of the 3D VP model
  • Multi-moment transmitter systems can be inverted
  • Ideal for layered environments such as cover thickness and paleochannel mapping
  • Rapidly model buried conductors

SimPEG

SimPEG, short for Simulation and Parameter Estimation in Geophysics, is a widely used open-source Python framework designed for modeling and inversion in geophysical applications.

Developed by a collaborative community of researchers and professionals, SimPEG provides a flexible platform for simulating various physical processes like electromagnetic, potential field, and seismic methods. It integrates inversion algorithms that allow users to estimate subsurface properties from observed geophysical data, making it a powerful tool for both research and practical applications in resource exploration, environmental studies, and geotechnical assessments.

Learn more

UBC-GIF

UBC-GIF codes (sold separately)

Industry-standard codes developed by the University of British Columbia Geophysical Inversion Facility including 3D modelling and inversion programs for gravity and magnetic gradient data, resistivity and induced polarization, and electromagnetics. The inverse problem is solved as an optimization problem that minimizes the earth structure subject to adequately fitting the data and honouring additional specified constraints, including geological constraints.

You can leverage Geoscience ANALYST Pro Geophysics‘s interface to prepare data, create meshes, constrain inversions with geological information, run inversions, and visualize results.

Gravity and Magnetic Gradient Data - GRAV3D and MAG3D

GRAV3D is used for carrying out forward modelling and inversion of surface, airborne and/or borehole gravity data in 3D. MAG3D is used for carrying out forward modelling and inversion of surface, airborne and/or borehole magnetic data in 3D. Arbitrary combinations of field components in borehole, surface, and airborne surveys can be inverted simultaneously. The forward modelling is accomplished by using an integral equation approach on a tensor grid that computes and stores the (possibly compressed) sensitivity matrix.

Resistivity and Induced Polarization - DCIP2D and DCIP3D

DCIP2D performs forward modelling and inversion of DC resistivity and IP data in 2D. All line data surface arrays, including non-standard or uneven arrays, can be inverted. It is compatible with dipole-dipole, pole-dipole, and pole-pole arrays. Wenner, Schlumberger, gradient and other arrays can all be inverted. DCIP3D performs forward modelling and inversion of DC resistivity and IP data over a 3D distribution of electrical conductivity and chargeability. It works with data acquired using general electrode configurations and arbitrary observation locations either on surface or in a borehole. 3D surface topography is fully incorporated in the modelling and inversion. Forward modelling for DC resistivity is carried out using finite volume techniques on a tensor grid.

Electromagnetics - EM1DFM and EM1DTM

EM1DFM inverts any type of geophysical frequency domain loop-loop EM data to find one of four types of 1D models, with one of four variations of the inversion algorithm. Many permutations of model type, data type, and algorithm choice are possible. EM1DTM inverts geophysical time domain EM data (B or dB/dt) from inductive sources to recover a 1D conductivity profile of the earth. The model objective function can be varied to provide models that range from ‘smooth’ to ‘blocky’ in accordance with the assumed geology. Variable strategies for estimating the trade-off parameter to balance the model structure and data misfit are provided. The program runs using an interface that allows multiple soundings to be stitched together into a profile.

Magnetic Vector Inversion - MVI

MIV is a program library for carrying out forward modelling and inversion of magnetic data solving for the full magnetization vector, either in Cartesian or Spherical coordinate systems. Please visit the Example provided and the AtoZ Tutorial for more details.https://mvi.readthedocs.io/en/latest/

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