Paleomagnetospheric radial diffusion

The geomagnetic dipole moment is known to be a function of time. Those magnetospheric parameters which depend on the dipole moment must similarly be functions of time, even when sampled under identical solar-wind conditions. Siscoe has recently deduced the dependence of various magnetospheric spatial and temporal scales on the dipole moment, and has introduced the term paleomagnetosphere to describe the historical configuration of the earth's magnetic cavity. The purpose of the present work is to propose acceptable scaling laws for the historical treatment of certain radial-diffusion coefficients that affect the earth's radiation belts.