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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America. >Origin of Jupiter's cloud-level zonal winds remains a puzzle even after Juno
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Origin of Jupiter's cloud-level zonal winds remains a puzzle even after Juno

机译：Origin of Jupiter's cloud-level zonal winds remains a puzzle even after Juno

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摘要

How far Jupiter's cloud-level zonal winds penetrate into its interior, a question related to the origin of the winds, has long been a major puzzle about Jupiter. There exist two different views: the shallow scenario in which the cloud-level winds are confined within the thin weather layer at cloud top and the deep scenario in which the cloud-level winds manifest thermal convection in the deep interior. We interpret, using two different models corresponding to the two scenarios, the high-precision measurements of Jupiter's equatorially antisymmetric gravitational field by the juno spacecraft. We demonstrate, based on the thermal-gravitational wind equation, that both the shallow and deep cloud-level winds models are capable of explaining the measured odd gravitational coefficients within the measured uncertainties, reflecting the nonunique nature of the gravity inverse problem. We conclude that the high-precision juno gravity measurements cannot provide an answer to the long-standing question about the origin of Jupiter's cloud-level zonal winds.

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