Alternative definitions (1), class: vernacular (0)
Term: GSM

This system has its X axis towards the Sun and its Z axis is the projection of the Earth's magnetic dipole axis (positive North) on to the plane perpendicular to the X axis. The direction of the geomagnetic field near the nose of the magnetosphere is well-ordered by this system. Thus it is considered the best system to use when studying the effects of interplanetary magnetic field components (e.g. Bz) on magnetospheric and ionospheric phenomena.

Created 2023.04.16
Last Modified 2023.04.16
Contributed by Ryan McGranaghan