Counterstreaming of O+ and H+ ions in the plasmasphere

Details Counterstreaming of O+ and H+ ions in the plasmasphere Counterstreaming of O+ and H+ ions in the plasmasphere

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979georl...6..925y&link_type=abstract

Geophysical Research Letters, vol. 6, Dec. 1979, p. 925-928.

Physics

2

Hydrogen Ions, Ion Motion, Oxygen Ions, Plasmasphere, Diurnal Variations, Magnetohydrodynamic Flow, Steady State, Vertical Motion

Scientific paper

Although the ion flux along plasmaspheric flux tubes has been both measured and numerically modeled for many years, it is only recently that H(+)-O(+) counterstreaming, with O(+) upwards, has been studied. The theoretical studies indicate that counterstreaming occurs under special conditions primarily near twilight. It is shown that such counterstreaming arises not only from a combination of particular conditions but is a more fundamental characteristic of the flow of plasma in the closed field-line magnetosphere. The causes of counterstreaming are analyzed showing that it must occur under steady state conditions; it is also shown how diurnal variations modify the steady state pattern.

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