The effects of non-uniform ionosphere on the equatorial Pc pulsations.

DOI BIBCODE 被引用文献2件

書誌事項

公開日
1988
DOI
  • 10.5636/jgg.40.635
公開者
地球電磁気・地球惑星圏学会

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説明

Equatorial Pc pulsations, having periods from 30 to 100sec and amplitude up to several nT, were studied by making use of the fluxgate magnetometer data obtained at Huancayo (0.8°N, 335.6°E in geomagnetic coordinates), Peru during the period from December 5, 1985 to January 5, 1986. Diurnal change of polarization parameters (orientation angle of the major axis and ellipticity) in the H-D plane were investigated. The following results were obtained.<br>1) Pulsations are linearly polarized. The ellipticities lie between +0.3 and -0.3.<br>2) orientation angle of the principal axis of variation vectors shows a diurnal variation. It deviates westward from the north for the local time 6-7h. The deviation angle of the major axis from the north occasionally amounts to 60 degrees. A small eastward deviation is also seen in the local time 15-17h. Around 17h a westward turning tendency is noted. During the other time of day, it remains in the north-south direction.<br>It is suggested that the changes in the D component which bring about the deviation of the orientation angle from the north could locally be produced through an east-west non-uniformity of the ionospheric conductivity distribution.

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詳細情報 詳細情報について

  • CRID
    1390282681486560896
  • NII論文ID
    130003558708
  • DOI
    10.5636/jgg.40.635
  • BIBCODE
    1988JGG....40..635S
  • ISSN
    21855765
    00221392
  • 本文言語コード
    en
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
    • OpenAIRE
  • 抄録ライセンスフラグ
    使用不可

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