Solar wind energy transfer regions inside the dayside magnetopause. II - Evidence for an MHD generator process

Details Solar wind energy transfer regions inside the dayside magnetopause. II - Evidence for an MHD generator process Solar wind energy transfer regions inside the dayside magnetopause. II - Evidence for an MHD generator process

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984p%26ss...32..757l&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 32, June 1984, p. 757-770.

Computer Science

38

Dynamo Theory, Energy Transfer, Magnetohydrodynamic Generators, Magnetopause, Solar Terrestrial Interactions, Solar Wind, Daytime, Helium Ions, Hydrogen Ions, Magnetosheath, Positive Ions, Prognoz Satellites

Scientific paper

The present quantitative analysis of magnetosheath injection regions observed in the dayside high latitude boundary layer emphasizes the consequences of the observed excess transverse momentum of solar wind ions, H(+) and He(2+), as compared to the magnetospheric ions He(+) and O(+) in the magnetosheath injection regions. The observed excess drift velocity of the solar wind ions, compared to the magnetospheric ions, may be interpreted as a negative inertia current in the boundary layer; as a consequence, the inertia current goes counter to the local electric field, and particle kinetic energy is converted into electrical energy. The dayside high latitude boundary layer therefore constitutes a voltage generator with respect to the injected magnetosheath plasma. By taking into account both the Hall and Pedersen conductivities in the ionosphere, the present theory also predicts a strong coupling between ionospheric east/west and north/south currents.

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