Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL091213 |
Global Venus‐Solar wind coupling and oxygen ion escape | |
M. Persson; Y. Futaana; R. Ramstad; A. Schillings; K. Masunaga; H. Nilsson; A. Fedorov; S. Barabash | |
2021-01-26 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | The present‐day Venusian atmosphere is dry, yet, in its earlier history a significant amount of water evidently existed. One important water loss process comes from the energy and momentum transfer from the solar wind to the atmospheric particles. Here, we used measurements from the Ion Mass Analyser onboard Venus Express to derive a relation between the power in the upstream solar wind and the power leaving the atmosphere through oxygen ion escape in the Venusian magnetotail. We find that on average 0.01 % of the available power is transferred, and that the percentage decreases as the available energy increases. For Mars the trend is similar, but the efficiency is higher. At Earth the ion escape does not behave similarly, as the ion escape only increases after a threshold in the available energy is reached. These results indicate that the Venusian induced magnetosphere efficiently screens the atmosphere from the solar wind. |
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/313694 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | M. Persson,Y. Futaana,R. Ramstad,等. Global Venus‐Solar wind coupling and oxygen ion escape[J]. Geophysical Research Letters,2021. |
APA | M. Persson.,Y. Futaana.,R. Ramstad.,A. Schillings.,K. Masunaga.,...&S. Barabash.(2021).Global Venus‐Solar wind coupling and oxygen ion escape.Geophysical Research Letters. |
MLA | M. Persson,et al."Global Venus‐Solar wind coupling and oxygen ion escape".Geophysical Research Letters (2021). |
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