CEDAR: CEDAR-HLPS Ionospheric Model Comparisons with Polar Cap Observations

CEDAR：CEDAR-HLPS 电离层模型与极冠观测的比较

• 批准号: 9612835
• 负责人: Jan Sojka
• 金额: $ 19.05万
• 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: 1996
• 资助国家: 美国
• 起止时间: 1996-12-15 至 1999-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9612835&HistoricalAwards=false
• 关键词: CEDAR; HLPS; Ionospheric; Model; Comparisons

The PI will make detailed comparisons of theoretical model predictions with comprehensive data sets collected during CEDAR-HLPS high-latitude observational campaigns and routine observations. The three areas emphasized involve sun-aligned polar cap arcs, the effects of thermospheric gravity waves on the high-latitude ionosphere, and the spatial and temporal resolution needed to elucidate the dynamics of thermospheric and ionospheric structures. First, the researchers will quantitatively test theoretical predictions concerning the relationship between spacing between multiple polar cap arcs and the hardness of the arc precipitation. Next, they will determine the spatial and temporal resolutions needed with regard to convection, precipitation, and current patterns in order to correctly elucidate the dynamics of thermospheric and ionospheric structures. Successful completion of all these tasks will enhance knowledge of fundamental magnetosphere-ionosphere and thermosphere-ionosphere coupling processes.

PI将对理论模型预测与CEDAR-HLPS高纬度观测活动和常规观测期间收集的综合数据集进行详细比较。 强调的三个领域涉及与太阳对齐的极冠弧、热层重力波对高纬度电离层的影响以及阐明热层和电离层结构动态所需的空间和时间分辨率。 首先，研究人员将定量测试关于多个极冠弧之间的间距与弧沉淀硬度之间关系的理论预测。 接下来，他们将确定对流、降水和电流模式所需的空间和时间分辨率，以便正确阐明热层和电离层结构的动态。 成功完成所有这些任务将增进对基本磁层-电离层和热层-电离层耦合过程的了解。