GEM: Asymmetry of Magnetic Storms and Its Implication Regarding Ring Current Injection

GEM：磁暴的不对称性及其对环形电流注入的影响

• 批准号: 0201798
• 负责人: Robert McPherron
• 金额: $ 15万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-06-15 至 2006-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0201798&HistoricalAwards=false
• 关键词: GEM; Asymmetry; Magnetic; Storms; Its

This project will use a number of indices to study the asymmetric ring current in the Earth's inner magnetosphere. The indices to be used include Asym-H, Dst, VBs, and AL. The analysis will use a combination of case histories, statistical analysis, superposed epoch analysis, linear prediction filtering, LT-UT maps of magnetic perturbations and inversion of line current models of storm time currents. One hypothesis to be tested is that there is no systematic westward propagation of ground perturbations following substorm expansions as the standard substorm models suggests there should be. A database of events used in this analysis will be made available to the scientific community.

该项目将使用一些指数来研究地球内磁层中的非对称环电流。 将使用的指数包括Asym-H，Dst，VBs和AL。分析将使用案例历史，统计分析，叠加历元分析，线性预测滤波，磁扰动的LT-UT图和风暴时间电流的线电流模型反演的组合。 有待检验的一个假设是，亚暴扩展后地面扰动并不像标准亚暴模型所认为的那样有系统地向西传播。 将向科学界提供一个分析中使用的事件数据库。