CEDAR: Advancing Meteor Aeronomy, Observations, and Physics

该项目是改进和实施最近开发的一项技术，用于根据对非镜面流星轨迹的高分辨率雷达观测，估计85-115公里之间赤道中间层/低热层中性风的高度分布。这项工作将利用从秘鲁Jicamara射电天文台(JRO)获得的非相干散射雷达(ISR)观测流星体的速度、减速和减速变化。该项目将包括对用于常规风速测定的新雷达传输模式的评估，该模式将用于汇编风速估计数据库。这些测量结果将被用来创建更逼真的流星轨迹演化模拟，使用Print Investigator在过去几年开发的大规模并行多维混合数值代码，以及用于改进80至120公里之间的中性密度估计。模拟和流星观测将被用来解决有关流星等离子体的雷达散射性质的广泛问题。这一努力将涉及三个机构的多名研究生和本科生参与。

This project is to refine and implement a recently developed technique for estimating the altitude profile of neutral winds in the equatorial mesosphere/lower thermosphere between 85-115 km from high-resolution radar observations of non-specular meteor trails. This effort will utilize incoherent scatter radar (ISR) observations of velocities, deceleration, and change in deceleration of meteoroids acquired from Jicamarca Radio Observatory (JRO) in Peru. The project will include an evaluation of new radar transmission modes for routine wind determination, which will be used to assemble a database of wind estimates. The measurements in turn will be used to create more realistic simulations of meteor trail evolution using a massively parallel, multi-dimensional hybrid numerical code developed over the past several years by the Principle Investigator as well as used to improve neutral density estimates between 80 and 120 km. The simulations and meteor observations will be used to address broad questions regarding the nature of radar scatter from the meteor plasma. This effort will involve participation by multiple graduate and undergraduate students over three institutions.