Magnetospheric activity is highly dependent on solar wind conditions.
Present efforts in this area are in trying to predict the overall properties of the magnetosphere in association with solar wind variations. This modelling can be compared with in situ spacecraft observations, or with static models developed by other groups. Our modelling is able to account for observed magnetic field strengths in the tail and the comparison shows the range of variability in the mapping produced by only moderate changes in the global magnetospheric current system. Robert M. Winglee . Ron Elsen .