| Term: | AkasofuEpsilon |
| Definition: |
A measure of the magnetopause energy flux andan indicator of the solar wind power available for subsequent magnetosphericenergization. Defined as: VB^2l^2sin(theta/2)^4 where B is the IMF, l isan empirical scaling parameter equal to 7 RE, and theta = tan(BY /BZ)^-1 theIMF clock angle. |