Magnetosphere - Ionosphere Coupling at Jupiter

汉娜将调查气态巨行星的电离层外流。汉娜将使用现有的电离层流出模型，对其进行修改以包含更现实的条件，然后尝试解释电离层流出如何影响磁层动力学。这是一项重要的工作，也是当前外行星磁层界的一个大话题。第一个项目将涉及修改应用于电离层流出模型的极光电流，以更好地了解这些结构的变化如何改变从行星转移到磁层的物质数量。在项目的后期阶段，汉娜可以选择该模型的去向。一种途径是准确解决大气流出物如何到达磁层、在什么时间尺度和在什么位置到达磁层。另一种方法可能是将该模型与高纬度密度结构模型结合使用，以更好地确定高纬度准静态加速度的性质。最后一种方法可能是将磁层-电离层-热层耦合模型与电离层流出模型更直接地结合起来，以更好地全面描述系统。汉娜希望成为比较行星磁层方面的专家，因此我希望她能够将她的研究应用于木星和土星。这将使她能够跨多个系统测试底层驱动程序

Hannah will be investigating ionospheric outflow at the Gas Giants. Hannah will be working with an existing model of ionospheric outflow, modifying it to contain more realistic conditions and then trying to interpret how the ionospheric outflow impacts magnetospheric dynamics. This is a critical piece of work and a current big topic in the magnetospheres of the outer planets community. The first project will involve modifying the auroral currents applied to the ionospheric outflow model to better understand how variations in these structures can alter the amount of material being transferred from planet to magnetosphere. In the later stages of the project, Hannah can choose where to go with this model. One avenue would be to address exactly how the atmospheric outflow reaches the magnetosphere and over what timescales and at what locations. Another approach could be to use this model in concert with models of the high-latitude density structure to better determine the nature of quasi-static acceleration at high-latitudes. A final approach could be to combine magnetosphere-ionosphere-thermosphere coupling models more directly with the ionospheric outflow model to better fully describe the system. Hannah wishes to be an expert in comparative planetary magnetospheres, and thus I expect that she will apply any of her studies to both Jupiter and Saturn. This will allow her to test underlying drivers across multiple systems