Magnetosphere-ionosphere coupling currents at Saturn

我们将重新检查2013年在北半球春季条件下在卡西尼号航天器的大倾斜轨道上观测到的土星磁层中场向耦合电流的磁特征。这些数据将与南方夏季期间获得的相应数据进行比较，以寻找季节性差异。随后将把结果输入卡西尼号大结局飞行任务数据(2016/17年)中存在的这些洋流引起的场扰动模型的建立，以帮助区分它们的签名和旋转内部场不对称的签名。

We will newly examine the magnetic signatures of field-aligned coupling currents in Saturn's magnetosphere observed on highly-inclined orbits of the Cassini spacecraft in 2013 under conditions of northern spring. These will be compared with corresponding data obtained during southern summer to search for seasonal differences. The results will subsequently be input to the development of models of the field-perturbations due to these currents that are present within the Cassini grand finale mission data (2016/17), to help discriminate their signatures from those of rotating internal field asymmetries.