雨滴の間の電荷移転:雷雨のマイクロ波温は,衝突する雨滴から放出される放射線から推論することができます
Science (New York, N.Y.)
|September 15, 1967
まとめ
雷雨中の電流放電は,そのUHF温度を大幅に上昇させる可能性があります. 金星でも同様の放電は,そのマイクロ波温度を説明するために,平方メートルあたり140万秒を必要とするだろうが,ある程度の熱放射線も可能性が高い.
科学分野:
- 大気物理学 大気物理学
- 惑星科学は惑星科学である.
- プラズマ物理学のプラズマ物理学
背景:
- 自由落下するドロップの間の放電は,実験室で観察できます.
- 地球上の雷雨は,電流放電によるUHF温度上昇を示します.
- 以前の研究によると,放電によって雷雨の気温が117Kまで上昇することが示唆されている.
研究 の 目的:
- 金星のマイクロ波温度における電気放電の潜在的役割を調査する.
- 金星の観測されたマイクロ波温度を説明するために必要な放電の数を定量化するために.
- 金星のマイクロ波放射に対する放電と熱放射線の貢献度を評価する.
主な方法:
- 自由落下するドロップ間の電気放電の定量的な実験室観測.
- 陸上の雷雨放出データを,金星の大気条件に推計する.
- 放電率と熱放射線に基づくマイクロ波温度モデリング.
主要な成果:
- 金星では,観測された ~650 Kのマイクロ波温度に匹敵するために,推定 1.4 x 10^6 の放電/秒/m^2 が必要です.
- 放電だけが観測されたマイクロ波温度全体の原因である可能性は低い.
- 金星のマイクロ波温度の一部は,真の熱放射線に起因する可能性が高い.
結論:
- 放電は金星のマイクロ波温度に寄与するかもしれないが,完全に寄与しているわけではない.
- 必要な放電速度は,金星に有意な大気または地表の電気現象があることを示唆しています.
- 金星のマイクロ波スペクトルへの放電誘発と熱放射線の貢献を区別するためにさらなる研究が必要である.
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