axial dipole field

axial dipole field

[′ak·sē·əl ′di‚pōl ‚fēld]
(geophysics)
A postulated magnetic field for the earth, consisting of a dipolar field centered at the earth's center, with its axis coincident with the earth's rotational axis.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.