CEDAR: Numerical Prediction of the Storm Time Geospace Currents and Magnetic Perturbations

CEDAR：风暴时间地球空间电流和磁扰动的数值预测

• 批准号: 1042258
• 负责人: Naomi Maruyama
• 金额: $ 10.78万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-08-15 至 2015-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1042258&HistoricalAwards=false
• 关键词: CEDAR; Numerical; Prediction; Storm; Time

This project will investigate the effects of geomagnetic storm-time ionospheric and magnetospheric current systems at low and mid-latitudes using the recently coupled thermosphere/ionosphere (CTIPe) and magnetospheric convection (RCM) models. Specifically, this work will develop an algorithm to calculate simulated magnetic perturbations at the ground based on modeled currents, compare results from the simulation with ground-based magnetometer network data and electric field data from the AMPERE satellite network, and characterize the spatial and temporal evolution of storm-time current systems based on idealized simulations. Specific science questions address the relationship between neutral thermospheric wind effects, storm phase, and global distribution of magnetic perturbations.

该项目将利用最近耦合的热层/电离层(CTIPe)和磁层对流(RCM)模式，调查中、低纬度地区的地磁风暴时间电离层和磁层电流系统的影响。具体地说，这项工作将开发一种算法来计算基于模拟电流的地面磁扰动，将模拟结果与地面磁强计网络数据和安培卫星网络的电场数据进行比较，并在理想化模拟的基础上表征风暴-时间电流系统的空间和时间演变。具体的科学问题涉及中性热层风效应、风暴阶段和磁扰动的全球分布之间的关系。