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?

中尺度行进的电离层障碍（MSTID）是电离层密度和高度的波样变化，从高到低纬度观察到，它们被广泛观察到。该项目通过进行多站点的多功能仪器调查并应用层析成像重建来解决其起源和进化的问题。该项目将包括向波多黎各的学生和公众提供外展活动。 层析成像技术将通过创建独立于磁场几何形状的现场线集成PEDERSEN电导率的大面积图，使对MSTID的电动力学有更深入的了解。将解决有关三维气流结构的以下问题：（1）MSTID结构与现场线综合PEDERSON电导率的空间/时间分布有何关系？ （2）MSTID血浆转运是否由中性风或电动力学主导？