摘要
3~30 kHz的甚低频(Very-Low-ITcquency,VLF)电磁波对近地空间的高能粒子分布具有非常重要的作用.闪电和地面VLF通信台等VLF波主要辐射源产生的VLF波能够渗透进入电离层,并以哨声波模式继续传播至磁层与高能粒子发生相互作用.本文从VLF电磁波渗透电离层传播计算方法的发展、计算模型验证以及模型在电离层现象研究中的应用等方面对VLF波渗透进电离层之后的传播计算的研究进展进行综述,并对未来研究进行初步展望.
Very Low Frequency(VLF) electromagnetic wave(3~30kHz) mainly radiated by lightening and ground-based VLF transmitters,which plays a very important role on controlling the distribution of high energy particles in the magnetosphere.VLF radiation can penetrate into the ionosphere,and propagate in whistler mode in the ionosphere,and interact with high energy particles in the magnetosphere.In this paper,the development of the calculation model of VLF wave penetrating into the ionosphere,the validation of the model and the application of the model in the study of the ionospheric phenomena are reviewed,and a preliminary outlook for future work has also been made.
引文
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