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MEASUREMENT OF POLARIZATION, INCIDENT ANGLE AND DIRECTION OF VLF EMISSIONS-(1)
http://hdl.handle.net/2237/21949
http://hdl.handle.net/2237/2194929f6b759-519e-4fc2-8559-e5443fb1b6fc
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
proria_15_1.pdf (1.9 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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| 公開日 | 2015-05-19 | |||||
| タイトル | ||||||
| タイトル | MEASUREMENT OF POLARIZATION, INCIDENT ANGLE AND DIRECTION OF VLF EMISSIONS-(1) | |||||
| 言語 | en | |||||
| 著者 |
IWAI, Akira
× IWAI, Akira× 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 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Since 1967, at Showa Base (geomag. lat. 69°S) in the Antarctic, the polarization, incident angle and arriving direction of the VLF emissions in 5, 12 and 25 KHz bands, have been studied by means of two crossed loops and a vertical antenna, through the analysis of the Lissajous' figure. The sense of rotation of the polarization plane in 750 Hz, 12 and 25 KHz bands, has been studied by means of two crossed loop antennas and the polarimeter. In this paper, the principle and the system of observation are discussed. Showa Base is constructed on a rocky ground, so that the earth conductivity will be very low. The error due to very low conductivity will occur only in the case of measurement of polarization ratio and phase difference between normal and abnormal waves. But, these errors are thought to be negligible in most cases. Since 1963, the polarization and arriving direction of VLF emissions have been studied by means of two crossed loops with their planes in N-S and E-W directions, and the goniometer arrangement at Moshiri Observatory (geomag. lat. 34°). Except for few cases of high level emission events, the desirable data could not be obtained, because in the low latitude such as Moshiri, the emission levels are generally too low and the atmospherics are too strong to measure polarization and direction of the former. | |||||
| 言語 | en | |||||
| 出版者 | ||||||
| 出版者 | The Research Institute of Atmospherics, Nagoya University | |||||
| 言語 | en | |||||
| 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 15, p. 1-16, 発行日 1968-03-20 |
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| 著者版フラグ | ||||||
| 値 | publisher | |||||
| URI | ||||||
| 識別子 | http://hdl.handle.net/2237/21949 | |||||
| 識別子タイプ | HDL | |||||
