Charged particle composition in the inner heliosphere during the rise to maximum of Solar Cycle 23

Flux distributions and abundances relative to oxygen of interplanetary ions (Z > 1) are statistically studied and compared for measurements made at 1 and at similar to 5 AU on the ACE and the Ulysses spacecraft near the ecliptic plane. Over the nearly two year interval studied, the distributions of the relative abundances and the fluxes of particles at the two locations are found to be approximately log normal. The statistical distributions of the relative abundances are found to be similar at the two helioradii. On a statistical basis, the fluxes at Ulysses times the distance of the measurements appear to be proportional to the fluxes at ACE. This radial dependence of the fluxes is consistent with the interpretation that, statistically, the ion parallel diffusion coefficient is large.