Python code and Gauss coefficients from the 13 generation of the IGRF candidate evaluation.
Originally submitted in October 2019.
Based on: Alken, P., Thébault, E., Beggan, C.D. et al. Evaluation of candidate models for the 13th generation International Geomagnetic Reference Field. Earth Planets Space 73, 48 (2021). https://doi.org/10.1186/s40623-020-01281-4
Tests are:
- Check files are correctly formatted, then:
- Lowes-Mauerberger power spectra plots
- Root-mean-square differences between candidates
- Degree correlation plot of differences between one candidate and all others
- Azimuthal spectra plot of the differences between one candidate and the others
- Triangle plot of differences between one candidate and the others
- Spatial maps of comparison in X, Y, Z, Br, Bt, Bp between one candidate and the others
Code based on GitHub repos: IAGA Summer School Python exercises and ChaosMagPy