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

摘要9615855伊南本项目在南极洲帕尔默站运行甚低频（VLF）无线电接收机，以研究全球闪电引起的电离层扰动。其主要工作方式是测量从几个遥远的甚低频发射机收到的信号的幅度和相位的变化。 在闪电之后，甚低频信号发生这些变化，因为闪电产生的无线电波（哨声）可以使来自货车艾伦辐射带的高能电子沉降到高层大气中，然后引起电离层电离的增加，从而影响传播的甚低频无线电波。 由于甚低频发射机的方向是已知的，因此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南极计划合作运行的，这两个计划都运行类似的接收器。该项目为全球变化倡议作出了贡献。 ***

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. ***