Published July 19, 2024 | Version v1.0
Software Restricted

Scripts for null space exploration using gravity data: application to field data from the Western Pyrenees and synthetic example.

  • 1. ROR icon Université de Lorraine
  • 2. ROR icon University of Western Australia

Description

This repository contains two archives showing examples of usage of the null-space exploration code used in:

Giraud, J., Ford, M., Caumon, G., Ogarko, V., Grose, L., Martin, R., and Cupillard, P.: Geologically constrained geometry inversion and null-space navigation to explore alternative geological scenarios: a case study in the Western Pyrenees, Geophysical Journal International, https://doi.org/10.1093/gji/ggae192, 2024.

The implementation is based on the "nullspace shuttles" algorithm introduced by, and described in:

Fichtner, A. and Zunino, A.: Hamiltonian Nullspace Shuttles, Geophysical Research Letters, 46, 644–651, https://doi.org/10.1029/2018GL080931, 2019.

The archive GeoMos_nullspace-paper_example.zip contains the necessary files to reproduce the work presented in Giraud et al. (2024).

The archive GeoMos_nullspace-3D_synthetic.zip contains a smaller, synthetic example using noisy data where the perturbation consists of a sphere being inserted in a model already containing another sphere. 

For assistance in running these scripts or for questions about them, their use, etc. please contact jeremie.giraud@uwa.edu.au

Files

Restricted

The record is publicly accessible, but files are restricted to users with access.

Additional details

Related works

Is supplement to
Journal article: 10.1093/gji/ggae192 (DOI)

Funding

European Commission
GeoMos - Development of a Method for the Exploration the Joint Geology-Geophysics Model-Space 101032994

Software

Repository URL
https://github.com/jeremiegiraud/GeoMos_nullspace
Programming language
Python
Development Status
Active

References

  • The implementation proposed here is based on the "nullspace shuttles" algorithm proposed introduced by, and described in: Fichtner, A. and Zunino, A.: Hamiltonian Nullspace Shuttles, Geophysical Research Letters, 46, 644–651, https://doi.org/10.1029/2018GL080931, 2019.