CEDAR: Aeronomy of Meteor Trails: Observations, Simulations, and Theory

CEDAR：流星轨迹的航空学：观测、模拟和理论

• 批准号: 0334906
• 负责人: Meers Oppenheim
• 金额: --
• 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: 2004
• 资助国家: 美国
• 起止时间: 2004-02-15 至 2007-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0334906&HistoricalAwards=false
• 关键词: CEDAR; Aeronomy; Meteor; Trails; Observations

Meteors and meteor ablation in the earth's upper atmosphere, as observed by large aperture radars, are used to determine basic parameters of the meteor and of the plasma associated with ablation. The research simulates radio-meteor echoes and creates numerical simulator to extract the mass, density, composition, and ion-neutral composition. The large aperture radars sample the plasma environment immediately surrounding the meteor, and non-specular meteor echoes permit extraction of these parameters. The simulations are based on radar data from ALTAIR, Jicamarca, Arecibo, and MU.

大口径雷达观测到的地球上层大气中的流星和流星消融被用来确定流星和与消融有关的等离子体的基本参数。这项研究模拟了射电流星回波，并创建了数值模拟器来提取质量、密度、成分和离子中性成分。大口径雷达对流星周围的等离子体环境进行采样，非镜面反射的流星回波可以提取这些参数。这些模拟是基于来自牛郎星、吉卡马卡、阿雷西博和墨尔本大学的雷达数据。