magnetic field (earth)
The magnetic region surrounding earth. It is generated by the dipolar characteristic of earth's core whereby earth itself acts as a great spherical magnet with poles near, but not exactly at, the North and South poles.
This category is also used for
geomagnetic field,
geomagnetics,
geomagnetism, with
maps and atlases for
magnetic anomaly maps,
magnetic field, and
magnetosphere
