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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >The Earth's Magnetic Field Enhances Solar Energy Deposition in the Upper Atmosphere
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The Earth's Magnetic Field Enhances Solar Energy Deposition in the Upper Atmosphere

机译：地球磁场增强了高层大气中的太阳能沉积

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摘要

The presence of a large-scale planetary magnetic field is thought to be a protective factor for atmospheres, preventing them from being blown off by the solar wind. We focus on one key aspect of atmospheric escape: how does a planetary magnetic fields affect the energy transfer from the Sun to the atmosphere? We estimate the solar wind energy currently dissipated in the Earth's atmosphere using empirical formulas derived from observations. We show that it is significantly higher than the energy dissipated in the atmosphere of a hypothetical unmagnetized Earth. Consequently, we conclude that the Earth's magnetic field enhances the solar energy dissipation in the Earth's atmosphere and that, contrary to the old paradigm, an intrinsic magnetic field does not necessarily reduces atmospheric loss.
机译：大规模行星磁场的存在字段被认为是一个保护因素大气层,防止他们被炸掉由太阳风。大气逃逸:一个行星磁场来自太阳的能量传递领域的影响大气?目前在地球大气层消散使用经验公式来源于观察。高于能量消散地球大气的假设垂直入射。因此,我们得出这样的结论:地球的磁场增强了太阳能在地球的大气层和耗散,与旧的范式,一种内在的磁场不一定降低大气的损失。

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