Height variations of auroral hiss observed by S-310JA-11 and 12 rockets
スポンサーリンク
概要
- 論文の詳細を見る
Electromagnetic waves constructing auroral hiss in the VLF range were observed by the S-310JA-11 and -12 rockets launched into a quiet auroral arc and into a breakup aurora respectively, from Syowa Station in Antarctica. An altitude profile of the electric field intensity, which peaked at an altitude of 90km was observed by the S-310JA-12 rocket in the frequency range less than 5kHz. An estimation of the source location of the auroral hiss was made with the altitude profile of the hiss intensity calculated by the full wave analysis so as to agree with those observed especially around the altitude of 90km. It was found that the auroral hiss is most likely to be generated at an altitude about 700km or less. On the other hand, the absolute intensity of the auroral hiss at a frequency of 4kHz observed by the rocket, which was 9.4×10^<-5> V/m/√<Hz>, was much stronger, by about 50dB, than that observed at Syowa Station. This means that the k-vector direction of the auroral hiss actually observed by the rocket lay outside the transmission cone, so that the auroral hiss could reach Syowa Station with very week intensity.
- 国立極地研究所の論文
著者
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Yamagishi Hisao
National Institude of Polar Research
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Fukunishi Hiroshi
Upper Atmosphere and Space Research Laboratory, Faculty of Science, Tohoku University
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Kimura Iwane
Department Of Electrical Engineering Kyoto University
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Kimura Iwane
Department Of Electrical Engineering Ii Faculty Of Engineering Kyoto University
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Nagano I
Kanazawa Univ. Kanazawa
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Nagano Isamu
Department Of Natural Science And Technology Kanazawa Graduate School Of Engineering
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Kimura I
Kyoto Univ. Kyoto Jpn
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Yamamoto Eiko
Department Of Obstetrics And Gynecology Nagoya University Graduate School Of Medicine
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Yamamoto Eiko
Department Of Electrical And Computer Engineering Kanazawa University
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Nagano I
Kanazawa University Kakuma-machi Kanazawa 920-1192 Japan.
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Nagano Isamu
Department Of Electrical And Computer Engineering Kanazawa University
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Hashimato Kozo
Department of Electrical Engineering, Tokyo Denki University
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Fukunishi Hiroshi
Upper Atmosphere And Space Research Laboratory Faculty Of Science Tohoku University
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Hashimato Kozo
Department Of Electrical Engineering Tokyo Denki University
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