| タイトル | ラジオダクト及び見通し内VHF帯伝搬異常と地震との統計的関連性 |
| その他のタイトル | Statistical relation between earthquakes and anomalous line-of-sight propagation in the VHF band and radio ducts |
| 著者（日） | 大曽根, 暖; 小川, 潤也; 羽賀, 望; 本島, 邦行 |
| 著者（英） | Osone, Dan; Ogawa, Junya; Haga, Nozomi; Motojima, Kuniyuki |
| 著者所属（日） | 群馬大学大学院工学研究科電気電子工学専攻; 群馬大学大学院工学研究科電気電子工学専攻; 群馬大学大学院工学研究科電気電子工学専攻; 群馬大学大学院工学研究科電気電子工学専攻 |
| 著者所属（英） | Department of electronic Engineering, Graduate School of Engineering, Gunma University; Department of electronic Engineering, Graduate School of Engineering, Gunma University; Department of electronic Engineering, Graduate School of Engineering, Gunma University; Department of electronic Engineering, Graduate School of Engineering, Gunma University |
| 発行日 | 2013-08 |
| 発行機関など | 日本大気電気学会
Society of Atmospheric electricity of Japan |
| 刊行物名 | Journal of Atmospheric Electricity |
| 巻 | 33 |
| 号 | 2 |
| 開始ページ | 115 |
| 終了ページ | 125 |
| 刊行年月日 | 2013-08 |
| 言語 | jpn
eng |
| 抄録 | In our previous paper, statistical relation between anomalous line-of -sight propagation in the VHF band and occurrences of earthquakes was presented. Basically, the anomalous propagation is mainly caused by anomalous refractive index of low atmosphere. In the present paper, the anomalous of the refractive index is captured by both the direct observation of radio ducts and the anomalous propagation in the VHF band, and the relation between them and the earthquakes are statistically clarified. Furthermore, the influences of meteorological conditions, which may disperse the anomalies of refractive index in the low atmosphere, are discussed. As a result, relation between anomalous propagation and earthquakes became increasingly clear by using anomalous propagation that concurrent with S-type ducts and meteorological conditions, wind velocity. |
| 内容記述 | 形態: 図版あり
Physical characteristics: Original contains illustrations |
| キーワード | short-term earthquake prediction; anomalous refractive index of the low atmosphere; VHF band; line-of-sight propagation; radio ducts; meteorological conditions |
| 資料種別 | Journal Article |
| ISSN | 0919-2050 |
| NCID | AA11610202 |
| SHI-NO | AA0061986004 |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/21174 |
