関連する実験動画
Updated: Jul 12, 2026

11:34
Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
ガリレオ・ガリレオの赤外線画像スペクトロスコピーの測定は,金星で行われた
まとめ
ガリレオ宇宙船は,金星の下層大気圏における重要な雲の変動を明らかにした. これらの発見は,金星に関する洞察を提供している.
科学分野:
- 惑星科学 惑星科学
- 大気科学 大気科学
- 金星科学 金星科学
背景:
- 1990年のガリレオミッションは,金星を研究するユニークな機会を提供した.
- 金星の大気動態を理解することは,比較惑星学にとって極めて重要です.
研究 の 目的:
- 近赤外線マッピングスペクトロメーターを用いて金星の夜間大気を調査する.
- 雲の構造,風のパターン,低地での化学組成を分析する.
主な方法:
- 1990年のガリレオの金星通過飛行中に,近赤外線マッピングスペクトロメーターからマルチスペクトル画像を使用しました.
- 分析したデータは0.7〜5.2マイクロメートルのスペクトル範囲です.
- 導出風速と大気圏の種の豊富さを,スペクトルプロファイルと画像から得られた.
主要な成果:
- 金星の下層雲層 (高さ約50km) の雲の不透明性の大きな変化を特定した.
- ハドリー細胞循環と一致するゾナル風とメリディナル風を導いた.
- 北半球と南半球の雲構造の有意な違いが観察されました.
- 定量化された下層大気の水蒸気と他の種の豊富さ.
結論:
- 金星の下層大気は,ダイナミックな雲構造と独特の半球特性を表しています.
- 観測された風のパターンは,大気循環のモデル,特にハドリー細胞の上の枝をサポートします.
- この研究は,金星の大気組成と動態に関する貴重なデータを提供します.
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