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Solar eclipse of August 1, 2008, above Kharkov: 2. Observation results of wave disturbances in the ionosphere.

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Title: Solar eclipse of August 1, 2008, above Kharkov: 2. Observation results of wave disturbances in the ionosphere.
Authors: Burmaka, V.1 viktor_burmaka@ukr.net, Chernogor, L.2 Leonid.F.Chernogor@univer.kharkov.ua
Source: Geomagnetism & Aeronomy. Jul2013, Vol. 53 Issue 4, p479-491. 13p.
Subject Terms: *Ionospheric disturbances, *Ionospheric observations, *Ionospheric electron density, *Fourier transforms, *Wavelet transforms, *Occultations (Astronomy), Solar eclipses, 2008
Abstract: Quasi-periodic variations in the power of incoherent scattered signals, caused by wave disturbances of the electron concentration in the ionosphere, are analyzed for the day of a partial solar eclipse and for a background day. The windowed and adaptive Fourier transforms and the wavelet transform are used for spectral analysis. The spectral parameters of the wave disturbances at altitudes of 100-500 km in the 10-120 min period range differed significantly on the day of the solar eclipse and on the background day. Variations in the spectrum began near the onset of the phase of maximum disk occultation and continued no less than 2 h. The amplitude of time variations N was 2 × 10-4 × 10 m, and the relative amplitude was 0.10-0.15. Wave disturbances have been compared for five solar eclipses; the comparison shows a noticeable variation in the spectrum of the wave disturbances during these events. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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DbLabel: Energy & Power Source
An: 88979006
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PubType: Academic Journal
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  Data: Solar eclipse of August 1, 2008, above Kharkov: 2. Observation results of wave disturbances in the ionosphere.
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  Data: <searchLink fieldCode="AR" term="%22Burmaka%2C+V%2E%22">Burmaka, V.</searchLink><relatesTo>1</relatesTo><i> viktor_burmaka@ukr.net</i><br /><searchLink fieldCode="AR" term="%22Chernogor%2C+L%2E%22">Chernogor, L.</searchLink><relatesTo>2</relatesTo><i> Leonid.F.Chernogor@univer.kharkov.ua</i>
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  Data: <searchLink fieldCode="JN" term="%22Geomagnetism+%26+Aeronomy%22">Geomagnetism & Aeronomy</searchLink>. Jul2013, Vol. 53 Issue 4, p479-491. 13p.
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  Data: *<searchLink fieldCode="DE" term="%22Ionospheric+disturbances%22">Ionospheric disturbances</searchLink><br />*<searchLink fieldCode="DE" term="%22Ionospheric+observations%22">Ionospheric observations</searchLink><br />*<searchLink fieldCode="DE" term="%22Ionospheric+electron+density%22">Ionospheric electron density</searchLink><br />*<searchLink fieldCode="DE" term="%22Fourier+transforms%22">Fourier transforms</searchLink><br />*<searchLink fieldCode="DE" term="%22Wavelet+transforms%22">Wavelet transforms</searchLink><br />*<searchLink fieldCode="DE" term="%22Occultations+%28Astronomy%29%22">Occultations (Astronomy)</searchLink><br /><searchLink fieldCode="DE" term="%22Solar+eclipses%2C+2008%22">Solar eclipses, 2008</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Quasi-periodic variations in the power of incoherent scattered signals, caused by wave disturbances of the electron concentration in the ionosphere, are analyzed for the day of a partial solar eclipse and for a background day. The windowed and adaptive Fourier transforms and the wavelet transform are used for spectral analysis. The spectral parameters of the wave disturbances at altitudes of 100-500 km in the 10-120 min period range differed significantly on the day of the solar eclipse and on the background day. Variations in the spectrum began near the onset of the phase of maximum disk occultation and continued no less than 2 h. The amplitude of time variations N was 2 × 10-4 × 10 m, and the relative amplitude was 0.10-0.15. Wave disturbances have been compared for five solar eclipses; the comparison shows a noticeable variation in the spectrum of the wave disturbances during these events. [ABSTRACT FROM AUTHOR]
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        Value: 10.1134/S001679321304004X
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      – Code: eng
        Text: English
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        PageCount: 13
        StartPage: 479
    Subjects:
      – SubjectFull: Ionospheric disturbances
        Type: general
      – SubjectFull: Ionospheric observations
        Type: general
      – SubjectFull: Ionospheric electron density
        Type: general
      – SubjectFull: Fourier transforms
        Type: general
      – SubjectFull: Wavelet transforms
        Type: general
      – SubjectFull: Occultations (Astronomy)
        Type: general
      – SubjectFull: Solar eclipses, 2008
        Type: general
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      – TitleFull: Solar eclipse of August 1, 2008, above Kharkov: 2. Observation results of wave disturbances in the ionosphere.
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              Text: Jul2013
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              Y: 2013
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