Synthetic reversal records for different latitudes have been generated for model transition field with various zonal harmonic contents. The model fields are based upon a redistribution of energy from an exponential decay of the dipole field to g02, g03, and g04. The records emphasize the dependence of their characteristics upon the latitude of the observation site. Both intensity and inclination changes, the relationship between these two aspects of the records, and estimates of the time to complete the reversal are all strongly dependent upon latitude. A particular model in which the dipole energy is redistributed to g02, g03, and g04 according to the ratio 2:3:5 is used to simulate the last reversal. |