Collaborative Research: Studies of Solar Wind -- Magnetosphere Interactions using Observations of ULF Waves at Manned Stations as Part of an Extensive Ground Array

合作研究：利用载人观测站作为广泛地面阵列一部分的 ULF 波观测来研究太阳风 - 磁层相互作用

• 批准号: 0838917
• 负责人: Mark Engebretson
• 金额: $ 26.9万
• 依托单位: Augsburg University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0838917&HistoricalAwards=false
• 关键词: Collaborative; Research; Studies; Solar; Wind

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The proposal seeks funding to: (a) continue ongoing studies that compare ground observations of Pc 1-2 waves with waves and ions observed by Cluster and THEMIS spacecrafts, both on dayside closed field lines (especially in relation to geomagnetic storms, to characterize their role in depleting the ring current and radiation belt electrons) and in the lobe/mantle region, to investigate whether they can be used to monitor the transport of magnetosheath plasma toward the tail; (b) compare ground-based observations of Pc 3-4 waves at cusp and polar cap latitudes with data from Cluster and THEMIS to investigate their propagation from their upstream source into and through the dayside magnetosphere and polar cap; and (c) continue recent satellite-ground studies of Pi 1B pulsations and substorms, in particular by comparing multi-station ground data with data from FAST, Cluster, and THEMIS spacecrafts, and by quantitatively analyzing multi-station data to test methods for inferring source locations, and by using combined ground and satellite Pi 1B data to probe the physical link between the onset location and the ionospheric signature of substorms. It is expected that the project will continue to play a significant role in a variety of studies of geospace phenomena including the solar wind?magnetosphere interaction and geomagnetic storms and substorms. The analysis effort associated with this project is highly suitable for involvement and research training of both graduate and undergraduate students.

该奖项根据 2009 年《美国复苏和再投资法案》（公法 111-5）提供资金。该提案寻求资助以：(a) 继续正在进行的研究，将 Pc 1-2 波的地面观测结果与 Cluster 和 THEMIS 航天器观测到的波和离子进行比较，两者均在日侧闭合场线上（特别是与地磁暴有关，以表征其耗尽环电流和辐射带电子的作用）和叶/幔区域，以研究它们是否可用于监测磁鞘等离子体向尾部的传输； (b) 将尖点和极冠纬度处的 Pc 3-4 波的地面观测结果与来自 Cluster 和 THEMIS 的数据进行比较，以研究它们从上游源传播到并穿过白天磁层和极冠的传播情况； (c) 继续近期对 Pi 1B 脉动和亚暴的卫星地面研究，特别是通过将多站地面数据与来自 FAST、Cluster 和 THEMIS 航天器的数据进行比较，并通过定量分析多站数据来测试推断方法源位置，并使用地面和卫星 Pi 1B 数据相结合来探测亚暴发生位置和电离层特征之间的物理联系。预计该项目将继续在各种地球空间现象研究中发挥重要作用，包括太阳风与磁层相互作用以及地磁风暴和亚暴。与该项目相关的分析工作非常适合研究生和本科生的参与和研究培训。