Evidence for Near-Equatorial Deposition by Energetic Electrons in the Ionospheric F-layer
A. V. Suvorova, A. V. Dmitriev, L. -C. Tsai
备注：
11 pages, 3 figures, International scientific online conference on MODERN ENGINEERING and TECHNOLOGIES of the FUTURE (METF-2013), Krasnoyarsk,Russia, 2013 accepted for publication in Trans. Tech. Publications
Near-equatorial great enhancements of the quasi-trapped >30 keV electrons at low-altitudes are studied during strong geomagnetic storms. We have found that the transient phenomenon often began at the morning and was capable to live several hours predominantly over the Pacific region with flux intensities largely exceeded quiet-time level by 4-5 orders of magnitudes. The purpose of the study is to validate an assumption that the enhanced quasi-trapped electron fluxes can be an important source of the ionization in the topside ionosphere in the range between the low and middle latitudes and to estimate energy deposition. We show that ionizing particle effect can significantly contribute in storm-time increase of total electron content (TEC) or positive ionospheric storm. We present analysis of medium/great flux events during moderate/major storms on 22 July 2009 and 27 July 2004 as examples for demonstrating concomitances of enhanced electron fluxes with ionospheric storm positive phases. Addition experimental support concerning the F2-region rise was obtained from COSMIC/FS3 radio occultation data for the storm of 22 July 2009.
The Possible Cause of the 40 SpaceX Starlink Satellite Losses in February 2022: Prompt Penetrating Electric Fields and the Dayside Equatorial and Midlatitude Ionospheric Convective Uplift
Spectral fluctuation analysis of ionospheric inhomogeneities over Brazilian territory Part II: E-F valley region plasma instabilities
与电离层不稳定性相关的类惯性过程已被确定为驱动在不同电离层区域中观察到的不规则性的主要非线性过程。在这项补充研究中，正如这两篇论文系列的第一篇文章[Fornari等人，Adv. Space Res. 58，2016]，我们对从巴西领土上进行的原位实验中测量的赤道E-F谷区电子密度波动进行了去趋势波动分析。从四个电子密度时间序列的DFA谱中分析了E-F谷区与K41湍流普适类的谱一致性。对F层电场的四个时间序列进行了互补的去趋势涨落分析。与F区获得的结果一致，E-F谷区的分析也显示出非常高的光谱变化（$\gg50\%$）。因此，在这一系列的两个部分进行的频谱分析表明，一个过程，如均匀湍流K41（$β=-5/3\pm 2\%$）是不适当的描述电子密度的波动和电场与主要的电离层不稳定性。
Influence of ICME-driven Magnetic Cloud-like and Sheath Region induced Geomagnetic Storms in causing anomalous responses of the Low-latitude Ionosphere: A Case Study
