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Dive into the research topics where R. G. Johnson is active.

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Featured researches published by R. G. Johnson.


Journal of Geophysical Research | 1972

SATELLITE OBSERVATIONS OF ENERGETIC HEAVY IONS DURING A GEOMAGNETIC STORM.

E. G. Shelley; R. G. Johnson; R. D. Sharp


Journal of Geophysical Research | 1977

Observation of an ionospheric acceleration mechanism producing energetic (keV) ions primarily normal to the geomagnetic field direction

R. D. Sharp; R. G. Johnson; E. G. Shelley


Journal of Geophysical Research | 1981

Energetic ion composition of the plasma sheet

W. K. Peterson; R. D. Sharp; E. G. Shelley; R. G. Johnson; H. Balsiger


Journal of Geophysical Research | 1976

He/++/ and H/+/ flux measurements in the day side cusp - Estimates of convection electric field

E. G. Shelley; R. D. Sharp; R. G. Johnson


Journal of Geophysical Research | 1981

Some general characteristics of upflowing ion beams over the auroral zone and their relationship to auroral electrons

H. L. Collin; R. D. Sharp; E. G. Shelley; R. G. Johnson


Journal of Geophysical Research | 1980

Counterstreaming electron beams at altitudes of ∼1 RE over the auroral zone

R. D. Sharp; E. G. Shelley; R. G. Johnson; A.G. Ghielmetti


Journal of Geophysical Research | 1979

Energetic particle measurements from within ionospheric structures responsible for auroral acceleration processes

R. D. Sharp; R. G. Johnson; E. G. Shelley


Journal of Geophysical Research | 1981

Ion composition and energy distribution during 10 magnetic storms

W. Lennartsson; R. D. Sharp; E. G. Shelley; R. G. Johnson; H. Balsiger


Journal of Geophysical Research | 1979

Downward flowing ions and evidence for injection of ionospheric ions into the plasma sheet

A.G. Ghielmetti; R. D. Sharp; E. G. Shelley; R. G. Johnson


Journal of Geophysical Research | 1974

Energetic O+ ions in the magnetosphere

R. D. Sharp; R. G. Johnson; E. G. Shelley; K. K. Harris

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R. D. Sharp

Space Sciences Laboratory

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E. G. Shelley

National Research Council

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E. G. Shelley

National Research Council

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W. K. Peterson

University of Colorado Boulder

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S. M. Kaye

Space Sciences Laboratory

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W. Lennartsson

Space Sciences Laboratory

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David T. Young

Southwest Research Institute

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R. D. Sharp

Space Sciences Laboratory

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