用大范围空气簇射通过它们的偏振无线电发射探测雷暴电场
Thunderstorm electric fields probed by extensive air showers through their polarized radio emission
摘要：
我们观察到一个大部分的圆偏振的无线电发射从广泛的空气阵雨记录在雷暴，远高于在公平的天气情况下测量的空气阵雨的发射。我们表明，在雷暴期间测量的空气阵雨的圆极化可以解释的横向电流的方向的变化作为高度的函数引起的大气电场。因此，通过使用这些事件的完整的斯托克斯参数，我们得到了一个很好的表征的电场在雷暴云。我们还测量了一个大的水平分量的电场在两个事件，我们已经分析。
英文摘要：
We observe a large fraction of circular polarization in radio emission from extensive air showers recorded during thunderstorms, much higher than in the emission from air showers measured during fair-weather circumstances. We show that the circular polarization of the air showers measured during thunderstorms can be explained by the change in the direction of the transverse current as a function of altitude induced by atmospheric electric fields. Thus by using the full set of Stokes parameters for these events, we obtain a good characterization of the electric fields in thunderclouds. We also measure a large horizontal component of the electric fields in the two events that we have analysed.
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