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DOI | 10.1029/2020GL090568 |
Detection of the Chandler Wobble of Mars from Orbiting Spacecraft | |
Alex S. Konopliv; Ryan S. Park; Attilio Rivoldini; Rose‐; Marie Baland; Sebastien Le Maistre; Tim Van Hoolst; Marie Yseboodt; Veronique Dehant | |
2020-10-13 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2020 |
英文摘要 | For the first time for any planetary body other than the Earth, the free wobble of the pole called the Chandler wobble has been detected for Mars with a period of 206.9 ± 0.5 days and amplitude of 10‐cm from radio tracking observations of Mars Odyssey, Mars Reconnaissance Orbiter (MRO), and Mars Global Surveyor (MGS), in order of decreasing sensitivity. The motion of the rotation pole location on the surface of Mars, or polar motion, is observed using two different approaches: (1) joint global estimates of Mars’ orientation and its gravity field, and (2) time‐series solutions of C21 and S21. For Mars interior models, the Chandler wobble period is combined with other measurements including the moments of inertia from our estimated precession rate ψ ̇ = −7603.9 ± 1.3 mas/yr and tidal Love number k2 = 0.169 ± 0.006. The Chandler wobble period constrains the rheology of the Martian mantle and in particular its long‐term frequency dependence. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/299281 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Alex S. Konopliv,Ryan S. Park,Attilio Rivoldini,et al. Detection of the Chandler Wobble of Mars from Orbiting Spacecraft[J]. Geophysical Research Letters,2020. |
APA | Alex S. Konopliv.,Ryan S. Park.,Attilio Rivoldini.,Rose‐.,Marie Baland.,...&Veronique Dehant.(2020).Detection of the Chandler Wobble of Mars from Orbiting Spacecraft.Geophysical Research Letters. |
MLA | Alex S. Konopliv,et al."Detection of the Chandler Wobble of Mars from Orbiting Spacecraft".Geophysical Research Letters (2020). |
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