Abstract Prompt creation of new multi-MeV electron and proton radiation belts in the normally benign slot region between inner and outer Van Allen zones was observed by the short-lived Combined Release and Radiation Effects Satellite (CRRES) mission almost 30 years ago. Flux oscillations at lower energies coincident with ULF wave measurements and consistent with drift resonance were also a feature of the CRRES observations. The next mission designed to study the radiation belts in similar detail from a near equatorial plane orbit was the Van Allen Probes launched in August 2012. These twin spacecraft in similar orbits observed many milder events which produce drift echoes indicative of injection over a limited range of longitude on less than an electron drift time. Related substorm injection drift echoes were also observed by Van Allen Probes with much higher energy resolution than previously. Along with other flux oscillations associated with Ultra Low Frequency (ULF) waves, these events form a class which contributes to the overall radial transport and energization of radiation belt electrons as well as protons. This paper focuses on the greatly improved measurements from the Van Allen Probes relative to the CRRES era. These measurements illuminate our understanding of the importance of flux oscillations as a signature of radial transport relative to other energization and loss processes affecting the radiation belts.

中文翻译：

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漂移回波和通量振荡：辐射带中迅速和扩散变化的特征

摘要 近 30 年前，短寿命的联合释放和辐射效应卫星 (CRRES) 任务观察到，在内部和外部范艾伦带之间的正常良性狭缝区域迅速产生了新的多 MeV 电子和质子辐射带。较低能量下的通量振荡与 ULF 波测量一致并且与漂移共振一致也是 CRRES 观测的一个特征。下一个旨在从近赤道平面轨道以类似细节研究辐射带的任务是 2012 年 8 月发射的范艾伦探测器。 这些在类似轨道上的双航天器观察到许多较温和的事件，这些事件产生漂移回波，表明在有限范围内注入经度上小于一个电子漂移时间。Van Allen Probes 还观察到相关的亚暴注入漂移回波，其能量分辨率比以前高得多。连同与超低频 (ULF) 波相关的其他通量振荡，这些事件形成一类有助于辐射带电子和质子的整体径向传输和激励。本文重点介绍了 Van Allen 探针相对于 CRRES 时代大大改进的测量结果。这些测量结果阐明了我们对通量振荡作为径向传输特征的重要性的理解，相对于影响辐射带的其他激励和损耗过程。这些事件形成一类有助于辐射带电子和质子的整体径向传输和激励。本文重点介绍了 Van Allen 探针相对于 CRRES 时代大大改进的测量结果。这些测量结果阐明了我们对通量振荡作为径向传输特征的重要性的理解，相对于影响辐射带的其他激励和损耗过程。这些事件形成一类有助于辐射带电子和质子的整体径向传输和激励。本文重点介绍了 Van Allen 探针相对于 CRRES 时代大大改进的测量结果。这些测量结果阐明了我们对通量振荡作为径向传输特征的重要性的理解，相对于影响辐射带的其他激励和损耗过程。