Whistler mode chorus waves are one of the most intense and important electromagnetic emissions in the Earth's radiation belt, where these waves are responsible for electron acceleration to relativistic energies and for energetic electron precipitation into the Earth's atmosphere. This study reports a unique multi-spacecraft observation event that allowed for the first time to verify theoretical models of chorus wave generation. The growth rates derived from the multi-spacecraft observations of chorus waves Cluster WBD electric field waveforms collected during the crossing of the equatorial source region were compared to the theoretical linear and nonlinear growth rates calculated using simultaneous PEACE electron measurements. We have revealed that the growth rate estimated from wave measurements is substantially higher than the estimated linear growth rate but is quite close to the estimated nonlinear growth rate. A notable wave amplification is found up to 5 degrees of magnetic latitude and higher.

中文翻译：

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基于多航天器波和等离子体测量的合唱波增长率的纬度映射


惠斯勒模式合唱波是地球辐射带中最强烈和最重要的电磁发射之一，这些波负责电子加速到相对论能量和将高能电子沉淀到地球大气中。本研究报告了一个独特的多航天器观测事件，该事件首次允许验证回响波产生的理论模型。将穿越赤道源区期间收集的合唱波、星团 WBD 电场波形的多航天器观测得出的生长速率与使用同步 PEACE 电子测量计算的理论线性和非线性生长速率进行了比较。我们已经揭示了从波浪测量中估计的增长率大大高于估计的线性增长率，但与估计的非线性增长率非常接近。在磁纬度高达 5 度或更高的地方发现了明显的波放大。