Interaction between an interplanetary shock and the earth's magnetosphere on August 27, 1978 - ISEE 1 electric field and ISEE 2 plasma observations

Details Interaction between an interplanetary shock and the earth's magnetosphere on August 27, 1978 - ISEE 1 electric field and ISEE 2 plasma observations Interaction between an interplanetary shock and the earth's magnetosphere on August 27, 1978 - ISEE 1 electric field and ISEE 2 plasma observations

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984jgr....89.8863a&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 89, Oct. 1, 1984, p. 8863-8871.

Physics

Earth Magnetosphere, Interplanetary Medium, Shock Wave Interaction, Solar Terrestrial Interactions, Space Plasmas, International Sun Earth Explorers, Magnetohydrodynamic Waves, Magnetopause, Wave Fronts

Scientific paper

A fast compressional motion of the magnetopause resulting from the interaction between an interplanetary shock and the earth's magnetosphere on August 27, 1978 is studied. Electric and magnetic field data are combined to determine both the magnetosonic velocity and the magnetopause velocity in good agreement with the magnetic time delay measurements. It is shown that during the compressional motion the E x B velocity was toward the magnetopause from both sides, at about 75 km/s from the earth side and about 50 km/s from the sun side. A power conversion flux close to +400 W/km is determined for the magnetopause. A sunward potential drop of 135-280 V occurred near the bow shock with a negative power conversion flux which was about 10 percent of the solar wind kinetic energy flux.

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