雷雲とイオノスフィアの間の巨大なジェットです
1Department of Physics, National Cheng Kung University, Tainan, 70148, Taiwan. htsu@phys.ncku.edu.tw
Nature
|June 27, 2003
まとめ
巨大なジェットが雷雲とイオノスフィアを直接結びつけ,地球全体の電気回路の新しい構成要素を明らかにしています. これらの放電は,稲妻とは異なり,電気的潜在力を減少させ,大気中の電気についての理解を修正する必要が生じます.
科学分野:
- 大気物理学 大気物理学
- エアロノミーはエアロノミーです.
- 電磁気学は,電磁気学である.
背景:
- 地球の地球規模の電気回路は,通常,雷雨,イオノスフィア,電流を含む.
- スプライトや青いジェットのような一時的な光現象は,雲とイオノスフィアの間で発生します.
- グローバル電気回路の完全なコンポーネントは完全に理解されていませんでした.
研究 の 目的:
- 地球のグローバルな電気回路における巨大なジェットの役割を調査するために.
- 雷雲とイオノスフィアの間の電気的つながりを決定する.
- これらのイベントの間に,非常に低周波のラジオ波の生成メカニズムを理解するために.
主な方法:
- 5つの巨大なジェットイベントの観測.
- 極低周波 (ELF) ラジオ波の検出.
- 雲とイオノスフィアの間の大気中の電気放電の分析.
主要な成果:
- 巨大なジェットが,雷雲 (16 km) とイオノスフィア (90 km) を直接接続していることが観察されました.
- 非常に低周波の無線波が4つのイベントの間に検出され,雲から離子圏への負の放電を示しました.
- これらの巨大なジェットイベントの前には,雲から地までの稲妻はありませんでした.
結論:
- 巨大なジェットは,世界の電気回路における重要な経路を表しています.
- これらの放電は,イオノスフィアと地面の間の電気的潜在力を減少させます.
- グローバルな電気回路の従来のモデルは,巨大なジェットやスプライトを含むように変更する必要があります.
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