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

PI将对理论模型预测与在Cedar-HLP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太阳对齐的极冠弧线、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力学所需的空间和时间分辨率。首先，研究人员将定量测试有关多个极帽弧间距离与弧析出硬度之间关系的理论预测。接下来，他们将确定关于对流、降水和电流模式所需的空间和时间分辨率，以便正确地阐明热层和电离层结构的动力学。成功完成所有这些任务将加强对基本磁层-电离层和热层-电离层耦合过程的了解。

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.