Implications of the hydrodynamic analogue for the solar-terrestrial interaction and the mapping of high-latitude convection pattern into the magnetotail

Details Implications of the hydrodynamic analogue for the solar-terrestrial interaction and the mapping of high-latitude convection pattern into the magnetotail Implications of the hydrodynamic analogue for the solar-terrestrial interaction and the mapping of high-latitude convection pattern into the magnetotail

Mar 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984georl..11..251r&link_type=abstract

Geophysical Research Letters (ISSN 0095-8276), vol. 11, March 1984, p. 251-254. Research supported by the Natural Sciences and E

Physics

7

Convective Flow, Geomagnetic Tail, Hydrodynamics, Solar Terrestrial Interactions, Space Plasmas, Earth Ionosphere, Electric Fields, Mapping

Scientific paper

An examination is conducted of the hydrodynamic analogue of high speed flow past an obstacle which has in the past been used for the magnetospheric geometry, yielding a separation bubble behind the obstacle and a laminar wake further downstream. Attention is given to the analogue's implications for convective flow patterns in the magnetotail, as well as the manner in which such flow patterns may map down to ionospheric levels. It is suggested that magnetic field lines which tread the plasma mantle never reach the region of sunward convection normally associated with the auroral oval, and that magnetic flux piles up near the poleward border of the morning sector auroral oval during extended periods of southward IMF. The return flow then occurs across the polar cap only after the IMF turns northward.

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