The course uses hands-on activities to demonstrate: key considerations for data preparation, testing acquisition hypotheses with forward modelling, auxiliary parameters for inversion setup, best practices for inversion modelling, and finally exploring the inversion solution space. Participants will have the opportunity to create models during and after the workshop using VOXI Earth Modelling.
Understanding Inversion
Core concepts to inversion – for beginners or non-inversion specialists
- Inversion, constraints, and non-uniqueness
- Understanding model norms and data misfit
Auxiliary Information in Inversion
- What is auxiliary information/discretization?
- Mesh geometry (CCC) and cell size
- Data sampling
- Error type and misfit distribution
- Trend removal
Introduction to the VOXI Environment
- Available tools
- User interface and integration with Oasis montaj
- Acceleration and regularization settings
- Unconstrained inversion workflow
- Forward modelling workflow
Magnetization Vector Inversion
- Overview and applications
- Understanding inversion component outputs
Model Building and Applying Constraints
- Introduction to constraint building tools and integration with wireframing
- Upper and lower bounds
- Parameter reference and weighting models
- Gradient reference and weighting models
- Iterative Reweighting Inversion