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Updated: Jul 17, 2026
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Published on: February 12, 2013
ガリレオ・ドップラーによる木星の深層帯域風の測定
1D. H. Atkinson, University of Idaho, Moscow, ID 83844, USA. J. B. Pollack, NASA Ames Research Center, Moffett Field, CA 94035, USA. A. Seiff, San Jose State University Foundation, NASA Ames Research Center, Moffett Field, CA 94035, USA.
Science (New York, N.Y.)
|May 10, 1996
まとめ
ガリレオ探査機の測定により,木星が明らかにされました.
科学分野:
- 惑星科学は惑星科学である.
- 大気ダイナミクス 大気ダイナミクス
- 木星 気象学 木星気象学
背景:
- 木星の深層大気循環を理解することは,惑星科学にとって極めて重要です.
- 木星の風の以前のモデルは,観測データによって,特に雲の頂上以下で制限されていました.
研究 の 目的:
- 目に見える雲の頂上の下にある木星のゾーン風の速度を直接測定するために.
- 木星の深層大気のダイナミックモデルを制約するデータを提供するために.
主な方法:
- ガリレオ探査機のリレーキャリア周波数のドップラーシフトを分析した.
- 風速を推論するために,検出器の速度と相関する周波数変化.
- 24バーの圧力に相当する高度での風速を決定する.
主要な成果:
- ガリレオ探査機に衝突したゾーン風によって引き起こされた測定可能なドップラー効果が検出されました.
- 測定された深層ゾナルの風は,進行し,強かった.
- 24バーの圧力レベルでは,毎秒190~200mの持続的な風速が記録されています.
結論:
- 木星のゾーン風の測定された深さと強さは,大気動態モデリングを大幅に制限しています.
- これらの発見は,木星の浅い天候に関する既存の多くの理論に異議を唱え,排除し始めている.
- 直接的な風の測定は,木星の大気プロセスに関する私たちの理解を洗練するために重要なデータを提供します.
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