Collaborative Research: MSTIDs: Multi-Site Tomography of Ionospheric Disturbances

合作研究：MSTID：电离层扰动的多点断层扫描

• 批准号: 1463967
• 负责人: Ethan Miller
• 金额: $ 20.4万
• 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: 2015
• 资助国家: 美国
• 起止时间: 2015-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1463967&HistoricalAwards=false
• 关键词: Collaborative; Research; MSTIDs; Multi; Site

Medium-scale traveling ionospheric disturbances (MSTIDs) are wave-like variations in ionospheric density and altitude that are widely observed from high to low latitudes. This project addresses questions of their origin and evolution by carrying out multi-site, multi-instrument investigations and applying tomographic reconstructions. The project will include outreach activities to students and the public in Puerto Rico. The tomographic technique will enable a deeper understanding of the electrodynamics of MSTIDs by creating wide area maps of the field-line integrated Pedersen conductivity independent of magnetic-field geometry. The following questions regarding the three-dimensional airglow structure will be addressed: (1) How does MSTID structure relate to the spatial/temporal distribution of field-line integrated Pederson conductivity? (2) Is MSTID plasma transport dominated by neutral winds or electrodynamics?

中尺度移动电离层扰动（MSTIDs）是电离层密度和高度的波状变化，从高纬度到低纬度广泛观测到。本项目通过开展多地点、多仪器调查和应用层析成像重建来解决它们的起源和演变问题。该项目将包括向波多黎各的学生和公众开展外展活动。层析成像技术通过创建独立于磁场几何形状的集成Pedersen电导率的场线广域图，可以更深入地了解mstid的电动力学。本文将解决以下有关三维气辉结构的问题：(1)MSTID结构与场线集成Pederson电导率的时空分布有何关系？(2) MSTID等离子体输运是由中性风还是电动力学主导？