CEDAR: Advancing Meteor Aeronomy, Observations, and Physics

CEDAR：推进流星航空学、观测和物理学

• 批准号: 1042228
• 负责人: Meers Oppenheim
• 金额: $ 30.82万
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-12-15 至 2013-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1042228&HistoricalAwards=false
• 关键词: CEDAR; Advancing; Meteor; Aeronomy; Observations

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.

这个项目是要改进和实施最近开发的一种技术，根据对非镜面流星尾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的Jicamarca无线电观测站获得的关于流星体速度、减速和减速变化的非相干散射雷达观测数据。 该项目将包括评估用于例行测风的新雷达传输模式，该模式将用于收集风估计数据库。 这些测量结果又将用于使用主要研究员过去几年开发的大规模并行多维混合数字代码对流星轨迹演变进行更真实的模拟，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流星等离子体雷达散射性质方面的广泛问题。 这项工作将涉及三个机构的多名研究生和本科生的参与。