Some features of the interplanetary shock wave interactions connected with the thermal anisotropy and 3D flow past the Earth’s bow shock

An effect of the pressure anisotropy on the variation in the plasma and magnetic field parameters across the front of a moving fast shock wave is examined and the results are compared against experimental data. It is found that the strong magnetic field inside a magnetic cloud with pressure anisotropy affects significantly changes in the plasma parameters across the shock wave. The 3D interaction of the plane front of an interplanetary shock wave with the Earth’s bow shock is considered within the framework of a non-plane-polarized MHD model. The dawn–dusk asymmetry of the interaction due to the influence of the interplanetary magnetic field and possible abrupt changes in the density and the magnetic field on the dusk flank are described.