CAREER: 3-D Global Full Maxwell's Equations Modeling of the Effects of a Coronal Mass Ejection on the Earth

职业：日冕物质抛射对地球影响的 3-D 全球完整麦克斯韦方程模型

• 批准号: 0955404
• 负责人: Jamesina Simpson
• 金额: $ 46.25万
• 依托单位: University of New Mexico
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2013-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0955404&HistoricalAwards=false
• 关键词: CAREER; Global; Full; Maxwell; Equations

This project will develop a global numerical model of the electromagnetic fields produced by ionospheric electromagnetic currents with the research goal of enabling better prediction of the impact of space weather on the electric power grid. The methodology involves finite-difference time domain (FDTD) computational solutions of the full-vector three-dimensional time-dependent Maxwell's equations for electromagnetic wave propagation within the global Earth-ionosphere system. In particular, the atmosphere-lithosphere volume between 400 km above the Earth's surface to 400 km below will be studied in unprecedented detail at high spatial resolutions. The research will build on previous and current work in this area by using Active Magnetosphere and Planetary Electrodynamics Response Experiment (AMPERE) data and by establishing collaborations with the Electric Power Research Institute SUNBURST monitoring network project. The model will simulate the effects of ionospheric currents that develop as the result of coronal mass ejections in order to improve our understanding of the resultant electrodynamics. The fine spatial resolution of the newly computed FDTD solutions will provide improved information for assessing and mitigating potential hazards specific to the operations of inland and coastal power grids and oil pipelines. One education goal is to develop a sequence of three computational electromagnetic courses at the University of New Mexico. A second goal is to initiate and establish a Residential College system at the University of New Mexico.

该项目将开发电离层电磁流产生的电磁场的全球数值模型，研究目标是能够更好地预测空间气象对电网的影响。 该方法涉及的全矢量三维时间相关的麦克斯韦方程的电磁波传播的全球地球电离层系统的时域有限差分（FDTD）计算解决方案。 特别是，将以前所未有的高空间分辨率详细研究地球表面400公里以上至400公里以下的大气-岩石圈体积。 这项研究将建立在这一领域以前和目前的工作基础上，使用活动磁层和行星电动力学响应实验（AMPERE）数据，并与电力研究所朝阳监测网络项目建立合作关系。 该模型将模拟由于日冕物质抛射而产生的电离层电流的影响，以提高我们对由此产生的电动力学的理解。 新计算的FDTD解的精细空间分辨率将为评估和减轻内陆和沿海电网和石油管道的运营特定的潜在危险提供改进的信息。 一个教育目标是在新墨西哥州大学开发一系列的三门计算电磁课程。 第二个目标是在新墨西哥州大学发起和建立一个住宿学院系统。