Preprints
https://doi.org/10.5194/gmd-2022-314
https://doi.org/10.5194/gmd-2022-314
Submitted as: development and technical paper
 | 
22 Mar 2023
Submitted as: development and technical paper |  | 22 Mar 2023
Status: this preprint has been withdrawn by the authors.

G&M3D 1.0: an Interactive framework for 3D Model Construction and Forward Calculation of Potential Fields

Kanggui Wei, Bo Chen, and Jiaxiang Peng

Abstract. Building source models and performing forward calculations are the basis for data processing, analysis, and interpretation of geophysical data. However, open-source tools for flexibly constructing source models and forward modelling of the potential fields are still lacking. This paper developed a new MATLAB-based software – G&M3D to fill this gap. The software has two main functions: (1) constructing 3-D gravity and magnetic source models and (2) calculating and visualizing their gravity and magnetic fields. In the 3D-Modeling Module, rectangular prisms are used to approximate anomalous geologic bodies. Users can flexibly construct 3-D regular-shaped models with variable densities or magnetic parameters using the Sphere, Cylinder, and Cube tools, or build irregular-shaped models using the Irregular (Layer-Building) tool. On the other hand, the gravity anomalies, gravity gradients, total magnetic intensity, and magnetic gradients generated by the created 3-D sources can be rapidly calculated, visualized, and saved in the Forward-Modelling Module of G&M3D. In order to improve the efficiency of the gravity and magnetic forward calculations, the 2-D discrete convolution algorithm is improved and applied in the software for the forward modelling of the gravity and magnetic fields. Finally, we use G&M3D for the forward gravity modelling over a salt dome in Vinton Dome, southern Louisiana, U.S., which verifies its correctness and practicality.

This preprint has been withdrawn.

Kanggui Wei, Bo Chen, and Jiaxiang Peng

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gmd-2022-314', Anonymous Referee #1, 10 May 2023
  • RC2: 'Comment on gmd-2022-314', Anonymous Referee #2, 25 May 2023
  • EC1: 'Comment on gmd-2022-314', Thomas Poulet, 26 May 2023

Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on gmd-2022-314', Anonymous Referee #1, 10 May 2023
  • RC2: 'Comment on gmd-2022-314', Anonymous Referee #2, 25 May 2023
  • EC1: 'Comment on gmd-2022-314', Thomas Poulet, 26 May 2023
Kanggui Wei, Bo Chen, and Jiaxiang Peng
Kanggui Wei, Bo Chen, and Jiaxiang Peng

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This preprint has been withdrawn.

Short summary
Geological model construction and forward calculation are the basis for the analysis and interpretation of geophysical data. However, open-source tools combining flexible source model construction and efficient forward calculation of the potential fields are rare. This study develops a new MATLAB-based software – G&M3D to address these issues. The real-world forward gravity modeling over a salt dome in Vinton Dome is performed to verify the correctness and practicality of the software.