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arXiv 1204.4306astro-ph.EPphysics.geo-phphysics.space-ph
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时变solar radiation通量下电离层D区电子浓度的高度分布

Altitude distribution of electron concentration in ionospheric D-region in presence of time-varying solar radiation flux

A. Nina, V. Cadez, V. Sreckovic, D. Sulic

摘要:

本文通过分析位于塞尔维亚贝尔格莱德的AWESOME接收机实时记录的由德国DHO发射机发射的甚低频(VLF)无线电波的幅度和相位随时间的变化,研究了太阳耀斑对地面电离层D区电子浓度的影响。2011年3月24日12:01 UT至12:11 UT期间,GOES-15卫星记录到太阳耀斑活动导致电离层D区光电离率上升。在70 km左右的高度,光电离和复合分别是主要的电子增益和电子损失过程。我们分析了这两个过程中产生的电子浓度变化扰动电离层的相对贡献。

英文摘要:

In this paper, we study the influence of solar flares on electron concentration in the terrestrial ionospheric D-region by analyzing the amplitude and phase time variations of very low frequency (VLF) radio waves emitted by DHO transmitter (Germany) and recorded by the AWESOME receiver in Belgrade (Serbia) in real time. The rise of photo-ionization rate in the ionospheric D-region is a typical consequence of solar flare activity as recorded by GOES-15 satellite for the event on March 24, 2011 between 12:01 UT and 12:11 UT. At altitudes around 70 km, the photo-ionization and recombination are the dominant electron gain and electron loss processes, respectively. We analyze the relative contribution of each of these two processes in the resulting electron concentration variation in perturbed ionosphere.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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