论文标题
电离层对流来源的分离和定量:1。一种新技术
Separation and Quantification of Ionospheric Convection Sources: 1. A New Technique
论文作者
论文摘要
本文描述了一种新型技术,该技术允许在高纬度电离层中分离和定量对流源。为了表示电离层对流电场,我们使用球形基本对流系统表示。我们演示了该技术如何将不同磁层源区域的贡献分离到整体电离层对流模式。该技术特别有用可用于区分与叶细胞相关的高纬度重新连接与与Dungey两细胞循环相关的低纬度重新连接的贡献。当前论文的结果用于伴侣纸(Reistad等,2019,https://doi.org/10.1029/2019JA026641)来量化偶极倾斜角度如何影响叶对流细胞。我们还描述了一个关系,桥接电离层对流电场的其他表示或球形基本对流系统描述的潜力,从而使对流源与现有模型相似。
This paper describes a novel technique that allows separation and quantification of different sources of convection in the high-latitude ionosphere. To represent the ionospheric convection electric field, we use the Spherical Elementary Convection Systems representation. We demonstrate how this technique can separate and quantify the contributions from different magnetospheric source regions to the overall ionospheric convection pattern. The technique is in particular useful for distinguishing the contributions of high-latitude reconnection associated with lobe cells from the low-latitude reconnection associated with Dungey two-cell circulation. The results from the current paper are utilized in a companion paper (Reistad et al., 2019, https://doi.org/10.1029/2019JA026641) to quantify how the dipole tilt angle influences lobe convection cells. We also describe a relation bridging other representations of the ionospheric convection electric field or potential to the Spherical Elementary Convection Systems description, enabling a similar separation of convection sources from existing models.