まとめ
金星の風は主に東からで,高度に劇的に増加します. 速度は,表面の近くでは1m/sから,中間雲では200m/s以上まで幅がある.
科学分野:
- * 惑星科学 (惑星科学)
- * 大気動力学
背景:
- *金星は,複雑な風のパターンを持つダイナミックな大気を持っています.
- * 金星の大気循環を理解することは,その気候を理解するための鍵です.
研究 の 目的:
- * 金星の下層大気圏の風速と方向を決定する.
- * 垂直と水平の風構造を調査する.
主な方法:
- *パイオニア・ベーナス・デイ・アンド・ノース・プローブの降下の3次元無線干渉計追跡を活用した.
- * 降下データを分析して,大気中の風の条件を推測した.
主要な成果:
- * 主に東風が観測された.
- * 風速は高さに伴い増加した:地表では約1m/s,雲の底では50m/s,中央の雲層では200m/s以上.
- *25~55kmの範囲では,流は赤道に向かって,波のような動きとスイール層で流れていた.
結論:
- * 金星の下層大気は,大きな垂直風切れと複雑な動態を示しています.
- * 東方超回転は,金星の大気循環の支配的な特徴です.
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