VLF/LF radio wave observation of radiation belt electrons into the atmosphere during geomagnetic storms

人造VLF/LF无线电波观测已经在挪威的新阿尔桑德和加拿大的阿萨巴斯卡开始。这些观测结果已被用于研究在地磁风暴和亚风暴期间高能（bbb100kev）电子进入大气的沉淀。研究了电子降水事件的局地时间分布，并与亚暴发生时间进行了比较。数据表明，等离子体波通过俯仰角散射使高能电子向大气中析出。

Man-made VLF/LF radio wave observations have been started at Ny-Alsound in Norway and Athabasca in Canada. These observations have been used to study precipitations of high-energy (>100keV) electrons into the atmosphere during the geomagnetic storm and substorm. Local time distribution of the electron precipitation events was examined and was compared with the substorm onset timing. The data indicates that plasma wave are responsible for the energetic electron precipitation into the atmosphere through the pitch angle scattering.