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VLF scattering from Red Sprites-Theory

机译:VLF从红色精灵理论散射

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摘要

A relatively simple model of Red Sprites as a set of conducting columns reproduces the radio physics properties of VLF sprites. The columnar structure of optical sprites is represented by thin vertical conducting columns (or 'Spritelets') in free space, with dimensions taken from optical observations. The scattered field from a set of coupled Spritelets has a complex amplitude pattern which normally includes some deep minima reproducing the 'perturbation shadows' seen in some experimental events. It is not uncommon for the back scattered amplitudes to be similar to those for forward scatter in the theoretical model, as in experimental reports. As some sprite events appear to have closely spaced Spritelets, the results presented here indicate that there will be a high degree of electrical shielding. This is an application of the theory presented by Rodger et al. (1997a).
机译:作为一组导电列的红色精灵的相对简单的红色模型再现VLF精灵的无线电物理性质。 光学精灵的柱状结构由在自由空间中的薄垂直导电柱(或“喷发”)表示,其尺寸来自光学观察。 来自一组耦合喷发的散射场具有复杂的幅度模式,该模式通常包括在一些实验事件中看到的“扰动阴影”再现。 背部散射幅度与理论模型中的前进散射相似并非如实验报告,它并不罕见。 由于一些精灵事件似乎具有紧密间隔的冲动,所以这里提出的结果表明将存在高度的电屏蔽。 这是Rodger等人提出的理论的应用。 (1997A)。

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