Global Thunderstorm Activity and its Effects on the Radiation Belts and the Lower Ionosphere

摘要9615855本项目在南极帕尔默站运行甚低频无线电接收器，目的是研究全球闪电引起的电离层干扰。其主要工作模式是测量从几个远距离甚低频发射机接收的信号的幅度和相位的变化。这些变化发生在闪电后的甚低频信号中，因为闪电产生的无线电(哨声)波可以导致来自范艾伦辐射带的非常高能量的电子沉淀到高层大气中，从而引起电离层中电离的增加，从而影响传播的甚低频无线电波。因为VLF发射机的方向是已知的，所以可以远程跟踪引起变化的雷暴的路径。帕尔默接收器是与英国和巴西的南极项目合作运行的，这两个项目的接收器都很相似。该项目为全球变化倡议做出了贡献。***

Abstract 9615855 Inan This project operates very low frequency (VLF) radio receivers at Palmer Station, Antarctica for the purpose of studying ionospheric disturbance caused by global lightning. The principal mode of operation is to measure changes in amplitude and phase of signals received from several distant VLF transmitters. These changes occur in the VLF signals following lightening strokes because radio (whistler) waves from the lightening can cause the precipitation into the upper atmosphere of very energetic electrons from the Van Allan radiation belts, which then cause increased ionization in the ionosphere, thus affecting the propagating VLF radio waves. Because the directions to the VLF transmitters are known, it is possible to remotely track the path of the thunderstorms causing the changes. The Palmer receivers are operating as a collaboration with the British and Brazilian Antarctic Programs, both of which operate similar receivers. This project contributes to the Global Change initiative. ***