CEDAR: Radar, Optical and Satellite Studies of High Latitude Arcs

CEDAR：高纬度弧的雷达、光学和卫星研究

• 批准号: 9415794
• 负责人: Bela Fejer
• 金额: $ 12.4万
• 依托单位: Utah State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-01-01 至 1997-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9415794&HistoricalAwards=false
• 关键词: CEDAR; Radar; Optical; Satellite; Studies

This project aims to study the structure and dynamics of high latitude auroral arcs using data from the Sondrestrom incoherent scatter radar and an all-sky imaging photometer. The study will also make use of simultaneous and coincident low and mid-altitude in-situ satellite measurements of plasmas and fields to quantify electrodynamic parameters involved in magnetosphere-ionosphere coupling. The main objectives of this project are to study (1) the electrical structure near high latitude arcs with emphasis on the relative motion between the arc and the ambient plasma, (2) the relationship between radar, optical and satellite signatures of arcs, and (3) quiet time temporal and spatial variations of auroral structures. A future campaign is planned in which radar and optical measurements will be made in coordination with overpasses of the NASA FAST Small Explorer satellite.

该项目旨在利用Sondrestrom非相干散射雷达和全天成像光度计提供的数据研究高纬度极光弧的结构和动态。 这项研究还将利用同时和一致的低、中高度等离子体和场的卫星现场测量，以量化磁层-电离层耦合所涉及的电动参数。 该项目的主要目标是研究（1）高纬度弧附近的电结构，重点是弧与周围等离子体之间的相对运动，（2）弧的雷达、光学和卫星特征之间的关系，以及（3）极光结构的安静时间时间和空间变化。 计划在未来开展一项活动，与美国航天局FAST小型探索者卫星的立交桥协调进行雷达和光学测量。