Satellite Magnetic Field Data Analysis: Magnetospheric/Ionospheric Currents and Waves

卫星磁场数据分析：磁层/电离层电流和波

• 批准号: 9901102
• 负责人: Shinichi Ohtani
• 金额: $ 30万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-12-15 至 2003-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9901102&HistoricalAwards=false
• 关键词: Satellite; Magnetic; Field; Data; Analysis

The investigators will continue analysis of magnetic field observations acquired by satellite-borne magnetometers. The effort is an integrated team approach to advance understanding of field-aligned currents, magnetospheric and ionospheric currents, and electromagnetic waves and turbulence. The group will investigate two different research topics related to field-aligned currents: comparing predicted to measured magnetic field perturbations along a satellite orbit, and studying the relative importance of driving sources for magnetohydrodynamic fast mode waves in the magnetosphere. The first study will use measurements by the SuperDARN radar network and the AMIE numerical model. The second study will make use of multi-point observations from the AMPTE, CRRES and GOES satellites.

调查人员将继续分析星载磁力计获得的磁场观测结果。这项工作是一个综合的团队方法，以促进对场向电流、磁层和电离层电流以及电磁波和湍流的了解。该小组将研究与磁场定向电流有关的两个不同的研究课题：比较沿卫星轨道预测的磁场扰动和测量的磁场扰动，以及研究磁层中磁流体动力快模波驱动源的相对重要性。第一项研究将使用SuperDARN雷达网和AMIE数值模型的测量结果。第二项研究将利用AMPTE、CRRES和GOES卫星的多点观测。