Search Results - "BJØRNA, N"

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  1. 1

    Alternating-code experiment for plasma-line studies by GUIO, P, BJØRNA, N, KOFMAN, W

    Published in Annales geophysicae (1988) (01-01-1996)
    “…We present results of the first plasma-line measurement of the incoherent spectrum using the alternating-code technique with the EISCAT VHF radar. This…”
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    Conference Proceeding Journal Article
  2. 2

    Anomalous echoes observed with the EISCAT UHF radar at 100-km altitude by MALNES, E, BJØRNA, N, HANSEN, T. L

    Published in Annales geophysicae (1988) (01-01-1996)
    “…We have observed a number of strong echoes with the European incoherent-scatter (EISCAT) UHF (930-MHz) radar at angles 83.5 degrees and 78.6 degrees with the…”
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    Conference Proceeding Journal Article
  3. 3

    Electron velocity distribution function in a plasma with temperature gradient and in the presence of suprathermal electrons : application to incoherent-scatter plasma lines by GUIO, P, LILENSTEN, J, KOFMAN, W, BJØRNA, N

    Published in Annales geophysicae (1988) (1998)
    “…The plasma dispersion function and the reduced velocity distribution function are calculated numerically for any arbitrary velocity distribution function with…”
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    Conference Proceeding Journal Article
  4. 4

    Alternating-code experiment for plasma-line studies by Guio, P., Bjørnå, N., Kofman, W.

    Published in Annales geophysicae (1988) (01-02-1997)
    “…We present results of the first plasma-line measurement of the incoherent spectrum using the alternating-code technique with the EISCAT VHF radar. This…”
    Get full text
    Journal Article
  5. 5

    Anomalous echoes observed with the EISCAT UHF radar at 100-km altitude by Malnes, E., Bjørnå, N., Hansen, T. L.

    Published in Annales geophysicae (1988) (01-02-1997)
    “…We have observed a number of strong echoes with the European incoherent-scatter (EISCAT) UHF (930-MHz) radar at angles 83.5° and 78.6° with the geomagnetic…”
    Get full text
    Journal Article
  6. 6

    Enhancement of the Incoherent Scattering Plasma Lines Due to Precipitating Protons and Secondary Electrons by Bjørnå, N, Havnes, O, Jensen, J O, Trulsen, J

    Published in Physica scripta (01-05-1982)
    “…Precipitating protons in the energy 1-100 keV are regularly present in the auroral ionosphere. These protons will produce enhancements in the intensity of the…”
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    Journal Article
  7. 7

    Effect of a Power Law Particle Flux on the Ionospheric Incoherent Scattering Cross Section by Bjørnå, Noralv, Trulsen, Jan

    Published in Physica scripta (01-03-1986)
    “…The effect of a suprathermal differential particle flux of the form J(E) theta = CE exp.-gamma(theta) on the incoherent scattering cross section is calculated…”
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    Journal Article
  8. 8

    Influence of Electrostatic Electron Waves on the Incoherent Scattering Cross-section by Trulsen, Jan, Bjørnå, Noralv

    Published in Physica scripta (01-01-1978)
    “…The electrostatic dispersion relation for a magnetized electron plasma has two solutions, one of which reduces to the plasma oscillations for parallel…”
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    Journal Article
  9. 9

    Bistatic measurements of incoherent scatter plasma lines by Nilsson, Hans, Kirkwood, Sheila, Bjørnå, Noralv

    “…According to the classical theory of incoherent scatter plasma lines, it is possible to determine the electron drift velocity from the difference in offset…”
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    Journal Article