The boundary surface between the solar wind and the magnetosphere, where the pressure of the Earth's magnetic field effectively equals the dynamic pressure of the solar wind.
boundary of the magnetosphere. Outside this boundary of the environment is dominated by interactions the solar wind magnetic field while inside it is primarily influenced by the Earth's magnetic field
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The region between the bow shock and the magnetopause, characterized by very turbulent plasma. For the Earth, along the Sun-Earth axis, the magnetosheath is about 2 Earth radii thick.