木星の大気圏の湿気と乾燥地域は,複雑な局所的な気象学を示しています

M Roos-Serote¹, A R Vasavada, L Kamp

¹Observatório Astronómico de Lisboa, Tapada da Ajuda, Lisbon, Portugal. roos@oal.ul.pt

Nature

|May 23, 2000

まとめ

木星,木星,木星,木星,木星,木星,木星,木星,木星,木星,木星,木星,木星,木星,木星

科学分野:

惑星科学は惑星科学である.
大気科学大気科学
木星研究木星研究

背景:

モデルによると,木星の大気は酸素が豊富で,地球規模の水雲が形成されている.
ガリレオ探査機のような以前の観測は,入口部で驚くほど乾燥した大気を示した.
予測される世界的な湿度と観測される局所的な乾燥度との間には不一致がある.

研究の目的:

木星の大気中の水蒸気の豊富さと雲の構造を調査するために.
木星の大気中の水雲に関する矛盾する発見を調和させるため.
トロポスフィアの条件を理解するために近赤外線観測を分析する.

主な方法:

木星の近赤外線 (約5マイクロメートル) 観測の分析.
水蒸気の豊富さを決定するスペクトルデータの評価.
トロポスフィアの垂直雲構造の調査.

主要な成果:

湿気と極度に乾燥した地域は,木星の近くで見つかりました.
いくつかの湿気地域は,空間的に明るいコンベクティブ雲と相関しています.
これらの雲は,深い水の雲から見える大気圏まで広がっています.

結論:

木星の大気は,湿度の大きな地域的変動を示しています.
流動雲は,水を可視の大気層に運ぶ役割を果たします.
この発見は,木星の大気中の水分分布の単純なモデルに異議を唱えている.

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