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Magnetosphere - Ionosphere Coupling at Jupiter

木星的磁层-电离层耦合

基本信息

批准号：
2604141
负责人：
金额：
--
依托单位：
Lancaster University
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2021
资助国家：
英国
起止时间：
2021 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2604141
关键词：
Magnetosphere Ionosphere Coupling Jupiter

项目摘要

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

汉娜将在气体巨人研究电离层外流。Hannah将使用现有的电离层外流模型，修改它以包含更现实的条件，然后试图解释电离层外流如何影响磁层动力学。这是一项重要的工作，也是外行星磁层社区当前的一个大话题。第一个项目将涉及修改应用于电离层外流模型的极光电流，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，Hannah可以选择使用此模型的位置。一个途径是准确地解决大气外流如何到达磁层，以及在什么时间尺度和什么位置。另一种方法是将这一模型与高纬度密度结构模型结合起来使用，以便更好地确定高纬度准静态加速度的性质。最后一种办法是将联合收割机磁层-电离层-热层耦合模型更直接地与电离层外流模型结合起来，以便更充分地描述系统。汉娜希望成为比较行星磁层的专家，因此我希望她能将她的研究应用于木星和土星。这将允许她跨多个系统测试底层驱动程序