CEDAR: Advancing Meteor Aeronomy, Observations, and Physics

该项目旨在完善和实施一项最新开发的技术，根据高分辨率雷达对非镜面流星轨迹的观测，估算85-115公里之间赤道中间层/低层热层中性风的高度剖面图。这项工作将利用从秘鲁Jicamarca射电天文台（JRO）获得的非相干散射雷达（ISR）对流星体的速度、减速和减速变化的观测。该项目将包括评估用于常规风力测定的新雷达传输模式，该模式将用于建立风力估计数据库。这些测量结果反过来将被用于创建更真实的流星轨迹演化模拟，该模拟使用了由首席研究员在过去几年中开发的大规模并行、多维混合数值代码，并用于改进80至120公里之间的中性密度估计。模拟和流星观测将用于解决有关流星等离子体的雷达散射性质的广泛问题。这项工作将涉及三个机构的多个研究生和本科生的参与。

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.