Dayside Cavity Mode Oscillations in the Inner Magnetosphere

该项目将确定地球内部磁层中是否存在超低频(ULF)空腔模波，如果存在，等离子体层如何控制它们的性质。该项目将利用McMac磁力计阵列的地面磁脉动测量。地面脉动数据将得到ACE卫星的太阳风测量和GeoTail和GOES卫星的磁脉动测量的补充。数据分析将包括使用真实的等离子体层密度结构的三维磁流体力学(MHD)模拟。空腔模波可能在辐射带内粒子的输运和激发中起着重要作用。

This project will determine whether or not Ultra Low Frequency (ULF) cavity mode waves exist in Earth's inner magnetosphere and if they do, how the plasmasphere controls their properties. The project will make use of ground-based magnetic pulsation measurements from the McMAC magnetometer array. The ground-based pulsation data will be supplemented with solar wind measurements from the ACE satellite and magnetic pulsation measurements from the Geotail and GOES satellites. The data analysis will include 3-dimensional magnetohydrodynamic (MHD) simulations using a realistic plasmasphere density structure. Cavity mode waves may play an important role in the transport and energization of particles in the radiation belts.