Birch M J, Hargreaves J K
Jeremiah Horrocks Institute for Mathematics, Physics and Astronomy, University of Central Lancashire, Preston, UK.
Department of Physics, Lancaster University, Lancaster, UK.
Sci Rep. 2020 Jan 28;10(1):1313. doi: 10.1038/s41598-019-57201-4.
In this study we present evidence for the existence of quasi-periodic ripples in the F-region electron content at high latitude, the magnetic flux density at geosynchronous orbit, and the solar wind dynamic pressure and IMF flux density at L1. The ripples are shown to be continually present during all 14 days of observations in different years and seasons, and at all local times, though they are generally small in magnitude relative to the background. The frequencies of all the parameters are, on average, remarkably similar, and the amplitudes of the selected peaks of some parameters show strong correlations for which regression formulae are given. These results support the proposition that the ripples propagate from the solar wind to the F-region, and that they are a related, persistent phenomenon.
在本研究中，我们给出了高纬度F区电子含量、地球同步轨道处的磁通密度以及L1处太阳风动压和IMF通量密度中准周期波动存在的证据。结果表明，这些波动在不同年份和季节的所有14天观测期间以及所有地方时都持续存在，尽管相对于背景而言它们的幅度通常较小。所有参数的频率平均而言非常相似，并且一些参数选定峰值的幅度显示出很强的相关性，并给出了回归公式。这些结果支持了波动从太阳风传播到F区的观点，并且它们是一种相关的、持续存在的现象。
