Simulations of the magnetosphere - ionosphere coupling to estimate the Physical Properties of Magnetospheric Generators from Observations of Quiet Discrete Auroral Arcs

We designed a method to estimate the properties of the auroral generator from low-altitude observations of aurora. The method is based on a magnetosphere – ionosphere quasi-stationary coupling model, a parametric description of a magnetospheric interface generator and a minimization procedure that finds the generator model whose auroral effects best fit in-situ observations. The database includes the results of the magnetosphere-ionosphere coupling model used to test the methodology. The method can be generalized to other types of generators and observables.本研究提出了一种基于极光低高度观测数据，估算极光发电机（auroral generator）特性的方法。 该方法基于磁层（magnetosphere）-电离层（ionosphere）准静态耦合模型、磁层界面发电机（magnetospheric interface generator）的参数化描述，以及用于寻找极光效应与原位观测（in-situ observations）结果最优匹配的发电机模型的最小化求解流程。 本数据集包含用于验证该方法的磁层-电离层耦合模型计算结果。该方法可推广至其他类型的发电机与可观测物理量。