Collaborative Research: Ground-based Imager and Magnetometer Network for Auroral STudies (GIMNAST)

合作研究：用于极光研究的地基成像仪和磁力计网络（GIMNAST）

• 批准号: 1004814
• 负责人: Christopher Russell
• 金额: $ 5万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1004814&HistoricalAwards=false
• 关键词: Collaborative; Research; Ground; based; Imager

NASA's THEMIS mission (Time History of Events and Macroscale Interactions during Substorms) included support for an extended network of Ground-Based Observatories (GBOs) with coverage over the North American auroral regions. Each station is equipped with a white-light auroral imager and a magnetometer providing an almost global-scale coverage of auroral phenomena. This project will extend the operation of the US-managed portion of the THEMIS-GBO network now that the NASA mission is being phased out. The Canadian portion of the THEMIS-GBO system will be funded through 2012 with option to renew/continue it until 2015. This award will enable the uninterrupted operation of the entire network until 2015. The observations made by the THEMIS-GBO network are strongly synergistic with other observational facilities supported by NSF and by the Canadian Space Agency. Among these other facilities are the Advanced Modular Incoherent Scatter Radars (AMISR) located at Poker Flat and Resolute Bay, and the many Super Dual Auroral Radar Network (SuperDARN) coherent scatter radars located in the northern hemisphere. Data from the THEMIS-GBO network will be made available to the general science community and will support scientific research on a wide variety of topics, including the appearance and disappearance of auroral arcs, the role of small-scale structures in auroral arcs, the relationship between auroral phenomena and the large-scale ionospheric convection, the relationship of polar-cap arcs to open and/or closed magnetic field lines, the current systems associated with auroral arcs and the properties of magnetic substorms during solar maximum as compared to solar minimum. These research topics all have relevance to our understanding of space weather and the effects space weather can have on technological systems. The project will provide direct research experience for undergraduate students.

NASA 的 THEMIS 任务（亚暴期间事件的时间历史和宏观尺度相互作用）包括支持覆盖北美极光区域的地基观测站 (GBO) 扩展网络。 每个站都配备了白光极光成像仪和磁力计，几乎可以覆盖全球范围的极光现象。 鉴于 NASA 任务正在逐步结束，该项目将扩大 THEMIS-GBO 网络中由美国管理的部分的运行。 THEMIS-GBO 系统的加拿大部分将在 2012 年之前获得资助，并可选择更新/继续到 2015 年。该资助将使整个网络不间断运行到 2015 年。THEMIS-GBO 网络的观察结果具有很强的协同作用以及由美国国家科学基金会和加拿大航天局支持的其他观测设施。 其他设施包括位于 Poker Flat 和 Resolute Bay 的先进模块化非相干散射雷达 (AMISR)，以及位于北半球的许多超级双极光雷达网络 (SuperDARN) 相干散射雷达。 来自 THEMIS-GBO 网络的数据将提供给广大科学界，并将支持各种主题的科学研究，包括极光弧的出现和消失、极光弧中小规模结构的作用、极光弧与极光弧之间的关系等。极光现象与大规模电离层对流之间、极帽弧与开放和/或闭合磁场线的关系、与极光弧相关的电流系统以及太阳活动极大期期间磁亚暴的特性与太阳极小期相比。 这些研究主题都与我们对空间天气以及空间天气对技术系统的影响的理解相关。 该项目将为本科生提供直接的研究经验。