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Detailed Reference Information |
Collin, H.L., Sharp, R.D. and Shelley, E.G. (1984). The magnitude and composition of the outflow of energetic ions from the ionosphere. Journal of Geophysical Research 89: doi: 10.1029/JA089iA04p02185. issn: 0148-0227. |
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Data from the lockheed ion mass spectrometer on the polar-orbiting satellite S3-3 where used to determine the outflow from the high-latitude ionosphere of terrestrial ions in the energy range of 0.5 to 16 keV during magnetically quiet times (Kp≤3) and magnetic storms (minimum Dst<-80nT). Populations of ions with different histories were separated on a statistical basis to allow the use of all available data rather than just data in which outflowing ions were conspicuous. The major constituents of the outflow were H+ and O+. A small component (<5%) of He+ could be detected but was too weak to be measured reliably. Both the intensity of the outflow and its composition showed marked dependence on magnetic activity. During quiet times the total outflow in this energy range from both hemispheres was ~1.3¿1025 s-1 with the ratio O+/H+=0.25. During storms the total outflow was higher, ~7.2¿1025 s-1 with a much larger O+ component, O+/H+=1.4. |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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