abstract
The possibility that particle precipitation in the auroral oval may in some way be connected with particle precipitation at lower latitudes inside the trapping region is investigated by making use of riometer absorption events observed at different latitudes near the auroral oval (Sanae at 59,7� invariant latitude and College at 64,6�). Events connected with particle precipitation at lower latitudes inside the trapping region (T-type events) do seem to be associated with events occurring in the auroral oval (A-type events). It is shown that the probability of finding a T-type event associated with an A-type event increases linearly with increasing magnetic activity, and that the magnitude (in decibels) of these T-type events also increases with increasing magnetic activity.