CEDAR: Incoherent Scatter Radar (ISR) Measurements of Flow Bursts and Relations to Auroral Electrodynamics

该项目将利用地面光学和雷达对高纬度电离层的遥感与THEMIS航天器获得的内部等离子体片的测量相结合，研究磁层和电离层之间的电动耦合。这项工作将创建增强流爆发的经验地图，定位在电离层对流电场的哈朗不连续区域附近，并评估流爆发与极光和磁层活动的关系，特别是包括极光向极边界增强，南北极光结构，极冠对流和亚暴开始的时间。 将使用的地面仪器包括非相干散射雷达（Sondrestrom、AMISR和RISR）、SuperDARN雷达、磁强计和全天成像阵列。 这项工作的目标是提供一个潜在的解决方案，长期存在的问题，亚暴开始时间的经验测试。

This project is to investigate the electrodynamical coupling between the magnetosphere and ionosphere using a combination of ground-based optical and radar remote sensing of the high latitude ionosphere with measurements of the inner plasma sheet acquired by the THEMIS spacecraft. This work will create empirical maps of bursts of enhanced flows, localized near the Harang discontinuity region of the ionospheric convection electric field, and assess the relationship of the flow bursts with auroral and magnetospheric activity, specifically including auroral poleward boundary intensifications, north-south auroral structuring, polar cap convection, and the timing of substorm onset. Ground-based instrumentation to be used includes incoherent scatter radars (Sondrestrom, AMISR, and RISR), SuperDARN radars, and magnetometer and all-sky imaging arrays. The goal of this effort is to provide empirical tests of a potential solution to the long-standing problem of substorm onset timing.