A planetary wave model for Saturn’s 10.7-h periodicities
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- 作者：C.G.A. Smitha ; b ; cgasmith@gmail.com" class="auth_mail" title="E-mail the corresponding author ; L.C. Rayb ; N.A. Achilleosb
- 关键词：Atmospheres ; dynamics ; Aurorae ; Ionospheres ; Saturn ; atmosphere ; Saturn ; magnetosphere
- 刊名：Icarus
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：268
- 期：Complete
- 页码：76-88
- 全文大小：1454 K
文摘
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We develop a theoretical model of Rossby waves in Saturn’s polar stratosphere.
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We find vertically-propagating waves that drift slowly westward.
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They drive field-aligned currents that may explain the 10.7 h periodicities.
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To generate currents of 1 MA requires wind speeds of about 70 m/s.