IGRF-13 Gauss Coefficients in Tidy Long Format, 1900 to 2020, with 2020 to 2025 Secular Variation
cra:igrf13-gauss-coefficients-1900-20205,070 records5 columnsv1.0 · issued 2026-07-21
01Description
The 13th-generation International Geomagnetic Reference Field: every Schmidt semi-normalized Gauss coefficient (g, h) to degree and order 13, reshaped from the official wide table into a tidy long format ready for direct analysis, with the published 2020 to 2025 secular variation terms included as a labeled epoch.
02Package Contents
| Data file (CSV) | The cleaned series, one record per row |
| README.md | Source, terms, exact cleaning steps, column definitions, limitations, citation |
| Preparation script | Reproduces the CSV mechanically from the named source file(s) |
| CHECKSUMS.txt | SHA-256 for every file in the package |
Dataset Recordcra:igrf13-gauss-coefficients-1900-2020
Series
Geomagnetic Field
Coverage
Epochs 1900.0 to 2020.0 at 5-year spacing, plus SV 2020-2025
Resolution
5-year model epochs
Extent
5,070 records × 5 columns
Version
v1.0 · issued 2026-07-21
Source
IAGA IGRF-13
Package
cra_igrf13_gauss_coefficients_1900_2020_v1.0.zip · 34 KB
Data file SHA-256
2824f99ae548f74f174b4a327a7f6816b6ab7a576a67bc7d47eacc5b6d5be7f5
03Delivery
Resolving member access.