Lower‐band whistler‐mode chorus waves are important to the dynamics of Earth's radiation belts, playing a key role in accelerating seed population electrons (hundreds of keV) to relativistic (>1 MeV) energies, and in scattering electrons such that they precipitate into the atmosphere. When constructing and using statistical models of lower‐band whistler‐mode chorus wave power, it is commonly assumed that wave power is spatially distributed with respect to magnetic L‐shell. At the same time, these waves are known to drop in power at the plasmapause, a cold plasma boundary which is dynamic in time and space relative to L‐shell. This study organizes wave power and propagation direction data with respect to distance from the plasmapause location to evaluate what role the location of the plasmapause may play in defining the spatial distribution of lower‐band whistler‐mode chorus wave power. It is found that characteristics of the statistical spatial distribution of equatorial lower‐band whistler‐mode chorus are determined by L‐shell and are largely independent of plasmapause location. The primary physical importance of the plasmapause is to act as an Earthward boundary to lower‐band whistler‐mode chorus wave activity. This behavior is consistent with an equatorial lower‐band whistler‐mode chorus wave power spatial distribution that follows the L‐shell organization of the particles driving wave growth.

中文翻译：

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通过Plasmapause位置测试下频带惠斯勒模式合唱波属性的组织

低频带的惠斯勒模式合唱波对于地球辐射带的动力学很重要，在将种子种群电子（数百keV）加速到相对论（> 1 MeV）能量以及散射电子使其沉淀到电子中起关键作用气氛。在构建和使用低频带惠斯勒模式合唱波功率的统计模型时，通常假设波功率相对于磁性L壳在空间上分布。同时，已知这些波在等离子暂停处降低功率，等离子暂停是相对于L壳在时间和空间上动态变化的冷等离子边界。这项研究针对距等离子休止符位置的距离组织了波功率和传播方向数据，以评估等离子休止符的位置在定义低频带惠斯勒模式合唱波功率的空间分布中可以发挥什么作用。结果发现，赤道低频带啸叫模式合唱的统计空间分布的特征由L壳决定，并且在很大程度上与血浆暂停位置无关。等离子暂停的主要物理重要性是充当低频带惠斯勒模式合唱波活动的向地边界。这种行为与遵循驱动波的增长的粒子的L壳结构的赤道低频带惠斯勒模式合唱波功率空间分布是一致的。结果发现，赤道低频带啸叫模式合唱的统计空间分布的特征由L壳决定，并且在很大程度上与血浆暂停位置无关。等离子暂停的主要物理重要性是充当低频带惠斯勒模式合唱波活动的向地边界。这种行为与遵循驱动波增长的粒子的L壳结构的赤道低频带惠斯勒合唱波功率空间分布是一致的。结果发现，赤道低频带啸叫模式合唱的统计空间分布的特征由L壳决定，并且在很大程度上与血浆暂停位置无关。等离子暂停的主要物理重要性是充当低频带惠斯勒模式合唱波活动的向地边界。这种行为与遵循驱动波增长的粒子的L壳结构的赤道低频带惠斯勒合唱波功率空间分布是一致的。