Current topology in the high-latitude magnetosphere and magnetospheric response to variations of solar wind parameters

Some new approaches which arise when researching into current topology in the high-latitude magnetosphere are considered. As noted, a high correlation between the magnetospheric processes and the solar wind parameters is well-known feature of the magnetosphere dynamics. The proposed explanations encounter some difficulties related with the high level of the observed turbulence in the magnetosheath and inside the magnetosphere. The topology of the high-latitude magnetosphere within the region of transition from dipole magnetic field lines to those elongated into the tail is also insufficiently known. The topology of transverse magnetospheric currents using data of satellite measurements of plasma pressure distribution is considered. Currents of the nearest plasma sheet are shown to be closed inside the magnetosphere. The processes of generation of the field-aligned currents in Iijima and Potemra region 1 and of large-scale magnetospheric convection are discussed.