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首页> 外文期刊>Journal of Geophysical Research, A. Space Physics: JGR >Temporal Characteristics of Energetic Magnetospheric Electron Precipitation as Observed During Long-Term Balloon Observations
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Temporal Characteristics of Energetic Magnetospheric Electron Precipitation as Observed During Long-Term Balloon Observations

机译：时间精力充沛的特点磁性层的电子降水观测在长期气球观测

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The paper summarizes the properties of precipitation of magnetospheric electrons with energy above several hundred keV recorded by observing X-ray bremsstrahlung in the polar stratosphere above the Murmansk region, Russia, in 1961-2019. Precipitation occurrence rate demonstrates a clear dependence on the solar activity with a maximum at the decay phase of the 11-year solar cycle, similarly to the variability in occurrences of the high-speed solar wind streams (HSSWS). The energetic electron precipitation (EEP) event series is often initiated by a moderate geomagnetic storm caused by a HSSWS and continues during geomagnetic storm recovery. EEP demonstrates the seasonal rate variation with the maxima in occurrence rate around the spring and the autumn solstices and correlates with fluences of relativistic electrons in the outer radiation belt. For 59 years, 589 events of precipitation were observed. Analysis of the long-term time series revealed a growing trend in the rate of precipitation occurrence, especially in the 1990s to 2000s that is not properly explained yet.
机译：本文总结了的属性降水的磁性层的电子能量高于几百keV记录观察x射线在极地轫致辐射平流层以上摩尔曼斯克地区、俄罗斯、在1961 - 2019年。演示了一个明确的对太阳能的依赖活动的最大衰减阶段11年的太阳活动周期,同样变化出现的高速太阳风流(HSSWS)。经常降水(保留)事件系列由一个温和的地磁风暴引起的HSSWS和磁暴期间仍在继续复苏。变化最大值的出现率在春天和秋天二至点与将的相对论电子外辐射带。年,589年的降水观测到的事件。长期时间序列的分析揭示了降水率的增长趋势发生,尤其是在1990年代到2000年代还没有合理的解释。

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