The Magnetic Poles Go Wandering

| projection | Polar Stereographic |
|---|---|
| tools | python: matplotlib, cartopy
|
| data | International Geomagnetic Reference Field (IGRF); National Centers for Environmental Information (NOAA); Natural Earth |
| font | DejaVu Sans Mono |
| comments | Colour in the sea, and maybe add a graticule |
| date | 07/11/2023 |