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  1. F300 宇宙地球環境研究所
  2. F300b 紀要
  3. Proceedings of the Research Institute of Atmospherics, Nagoya University
  4. 19

VLF HISS OBSERVED AT SYOWA STATION, ANTARCTICA-I : Observation of VLF hiss

http://hdl.handle.net/2237/22224
http://hdl.handle.net/2237/22224
d16915df-3c98-4b3e-a0ef-c80280721882
名前 / ファイル ライセンス アクション
proria_19_33.pdf proria_19_33.pdf (3.2 MB)
Item type 紀要論文 / Departmental Bulletin Paper(1)
公開日 2015-06-02
タイトル
タイトル VLF HISS OBSERVED AT SYOWA STATION, ANTARCTICA-I : Observation of VLF hiss
言語 en
著者 TANAKA, Yoshihito

× TANAKA, Yoshihito

WEKO 59231

en TANAKA, Yoshihito

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
抄録
内容記述 VLF hiss observed at Syowa Station may be divided into steady and impulsive types. The steady VLF hiss which appears in association with moderate geomagnetic activity and weak cosmic noise absorption (CNA) at 30 MHz, continues from ten to several tens of minutes and dominates in the lower frequency range (5-12kHz), usually occurring in the evening side of the nighttime. Near the magnetic midnight, an impulsive VLF hiss occurs almost synchronously with the auroral break-up always followed by sharp and large fluctuations of magnetic H-component and CNA. It falls sharply in short period before the maximum activity of the aurora and its frequency range extends more than 100 kHz. Through a polarimeter, VLF hiss is divided into right-handed polarized (R-) component and left-handed polarized (L-) component. The polarization record teaches us that VLF hiss is right-handed polarized. However, the ratio of R-component to L-component was smaller than we had expected. Supposed that VLF hiss comes down to the ground with nearly circular polarization and small angle of incidence, the polarization data seem to be explained by the simultaneous arrival of multiple rays uncorrelated. Displaying Lissajous' figures on a cathode ray tube, we investigated the polarization, incident angle and arriving direction of VLF hiss (hereafter the method is called as CRT method). The figures show that VLF hiss propagates downward with not so large an angle of incidence, roughly within the magnetic meridian plane.
言語 en
内容記述タイプ Abstract
出版者
言語 en
出版者 The Research Institute of Atmospherics, Nagoya University
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ departmental bulletin paper
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
ISSN(print)
収録物識別子タイプ PISSN
収録物識別子 0077-264X
書誌情報 en : Proceedings of the Research Institute of Atmospherics, Nagoya University

巻 19, p. 33-61, 発行日 1972-03-30
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/22224
識別子タイプ HDL
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