GEM: Mapping of Field-Aligned Currents as a Function of the Interplanetary Magnetic Field

GEM：场对准电流作为行星际磁场函数的映射

• 批准号: 9701868
• 负责人: Daniel Weimer
• 金额: --
• 依托单位: Mission Research Corporation (MRC)
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-06-15 至 2001-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9701868&HistoricalAwards=false
• 关键词: GEM; Mapping; Field; Aligned; Currents

This proposal will develop quanitative global maps of the distribution of high latitude field-aligned currents parameterized by IMF orientation and strength, and by season. This will be the first investigation to revisit this issue since the original maps were produced from TRIAD data over 20 years ago. Much has been learned since that time and the data will be treated more correctly in terms of binning. In addition, a new analysis technique will be utilized which consideres both horizontal components of the magnetic perturbation observed at the satellite, This will allow a relaxation of the assumption of the "infinite current sheet" model for the interpretation of the data.

这项建议将编制高纬度场向海流分布的定量全球地图，以国际货币基金组织的方向和强度以及季节作为参数。这将是自20多年前根据TRIAD数据制作原始地图以来首次重新审视这一问题的调查。从那时起，我们学到了很多东西，数据将在分组方面得到更正确的处理。此外，将利用一种新的分析技术，考虑到在卫星上观测到的磁扰动的水平分量，这将允许放宽对数据解释的“无限电流片”模型的假设。