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Wave activity in the ionosphere during the geospace storm of November 7-10, 2004.

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Title: Wave activity in the ionosphere during the geospace storm of November 7-10, 2004.
Authors: Burmaka, V. P.1, Chernogor, L. F.2
Source: Geomagnetism & Aeronomy. Jun2011, Vol. 51 Issue 3, p305-320. 16p. 2 Charts, 11 Graphs.
Subject Terms: *Electrons, *Ionosphere, *Ionospheric storms, *Geomagnetism, *Atmospheric electricity
Abstract: This paper presents the results of studies of wave disturbances in the electron concentration N in the ionosphere during a prominent geospace storm, in the process of which the electron concentration decreased by a factor of 6-7, whereas the temperatures of ions and electrons at night increased up to 2000 and 3000 K, respectively. The height-time variations in the parameters of wave disturbances are also analyzed. It is shown that the geospace storm was accompanied by a substantial change in wave activity in the ionosphere. In the period of negative ionospheric storms, the amplitude Δ decreased by a factor of 2-10. At the same time, the relative amplitude δ = Δ N/N changed insignificantly and was within the limits 0.05-0.10 during day-time. At night, δ reached 0.25-0.30 and sometimes even 0.4-0.5. During both disturbed and undisturbed days, quasi-periodic processes with a period of 40-60 and 80-120 min prevailed. The maximum values of the absolute and relative amplitudes were achieved at a height of 200-270 km. A soliton-like disturbance formed near the main phase of the magnetic storm on November 10, 2004 was detected. Its appearance was related to the oblique coherent reflection of sounding signals. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
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PubType: Academic Journal
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  Data: Wave activity in the ionosphere during the geospace storm of November 7-10, 2004.
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  Data: <searchLink fieldCode="AR" term="%22Burmaka%2C+V%2E+P%2E%22">Burmaka, V. P.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Chernogor%2C+L%2E+F%2E%22">Chernogor, L. F.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Geomagnetism+%26+Aeronomy%22">Geomagnetism & Aeronomy</searchLink>. Jun2011, Vol. 51 Issue 3, p305-320. 16p. 2 Charts, 11 Graphs.
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  Data: *<searchLink fieldCode="DE" term="%22Electrons%22">Electrons</searchLink><br />*<searchLink fieldCode="DE" term="%22Ionosphere%22">Ionosphere</searchLink><br />*<searchLink fieldCode="DE" term="%22Ionospheric+storms%22">Ionospheric storms</searchLink><br />*<searchLink fieldCode="DE" term="%22Geomagnetism%22">Geomagnetism</searchLink><br />*<searchLink fieldCode="DE" term="%22Atmospheric+electricity%22">Atmospheric electricity</searchLink>
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  Data: This paper presents the results of studies of wave disturbances in the electron concentration N in the ionosphere during a prominent geospace storm, in the process of which the electron concentration decreased by a factor of 6-7, whereas the temperatures of ions and electrons at night increased up to 2000 and 3000 K, respectively. The height-time variations in the parameters of wave disturbances are also analyzed. It is shown that the geospace storm was accompanied by a substantial change in wave activity in the ionosphere. In the period of negative ionospheric storms, the amplitude Δ decreased by a factor of 2-10. At the same time, the relative amplitude δ = Δ N/N changed insignificantly and was within the limits 0.05-0.10 during day-time. At night, δ reached 0.25-0.30 and sometimes even 0.4-0.5. During both disturbed and undisturbed days, quasi-periodic processes with a period of 40-60 and 80-120 min prevailed. The maximum values of the absolute and relative amplitudes were achieved at a height of 200-270 km. A soliton-like disturbance formed near the main phase of the magnetic storm on November 10, 2004 was detected. Its appearance was related to the oblique coherent reflection of sounding signals. [ABSTRACT FROM AUTHOR]
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        Value: 10.1134/S0016793211030042
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      – Code: eng
        Text: English
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        PageCount: 16
        StartPage: 305
    Subjects:
      – SubjectFull: Electrons
        Type: general
      – SubjectFull: Ionosphere
        Type: general
      – SubjectFull: Ionospheric storms
        Type: general
      – SubjectFull: Geomagnetism
        Type: general
      – SubjectFull: Atmospheric electricity
        Type: general
    Titles:
      – TitleFull: Wave activity in the ionosphere during the geospace storm of November 7-10, 2004.
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            NameFull: Burmaka, V. P.
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              Text: Jun2011
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              Y: 2011
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