Collaborative Research: Fabry-Perot Interferometer (FPI) to Study Ion-neutral Coupling near the Southern Crest of the Equatorial Ionization Anomaly in the American Sector

合作研究：法布里-珀罗干涉仪（FPI）研究美国扇区赤道电离异常南脊附近的离子中性耦合

• 批准号: 1153264
• 负责人: Carlos Martinis
• 金额: $ 31.06万
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-05-01 至 2018-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1153264&HistoricalAwards=false
• 关键词: Collaborative; Research; Fabry; Perot; Interferometer

The investigators will build a Fabry-Perot Interferometer (FPI) and install it near the southern crest of the equatorial ionization anomaly (EIA) initially at the Mercedes Observatory (for a ~ 3-6 month campaign observation) and later at El Leoncito Observatory, where additional ionospheric instrumentation already exists. Neutral winds and temperatures are key parameters needed to understand upper atmosphere processes. Most of our knowledge of neutral parameters in the upper atmosphere comes from observations obtained by FPIs. The measurement of winds and temperatures at ~250-300 km and at ~95 km will be combined with other parameters obtained with co-located optical and ionosonde instrumentation. The main objective of the study is to improve understanding of ion-neutral coupling processes in the region. Different experiments will be carried out, e.g., the latitudinal comparison of neutral winds using other FPIs, the comparison of zonal winds and zonal plasma drifts (inferred from the motion of airglow depletions), and the study of high latitude midnight temperature maximum (MTM) effects. The study will also contribute to research on the dynamics and electrodynamics of the upper atmosphere. The effort includes the organization of a mini-workshop on multi-instrument studies of the upper atmosphere to foster the collaboration between U.S. and Argentine researchers.

调查人员将建造一个Fabry-Perot干涉仪（FPI），并将其安装在赤道电离异常的南部峰顶附近，最初是在梅赛德斯天文台（对于〜3-6个月的竞选观测），后来在El Leoncito天文台上安装，在El Leoncito observatory中，在这里已经存在其他电离圈仪器。中性风和温度是了解上层大气过程所需的关键参数。我们对高层大气中中性参数的大多数了解都来自FPI所获得的观察结果。在〜250-300 km和〜95 km处的风和温度的测量将与通过共同分级的光学和离子仪器获得的其他参数结合使用。该研究的主要目的是提高对该地区离子中性耦合过程的理解。将进行不同的实验，例如，使用其他FPI对中性风进行纬度比较，区域风和Zonal血浆漂移的比较（根据气流耗竭的运动推断），以及高纬度午夜温度最大（MTM）最大程度的研究。该研究还将有助于研究上层大气的动力学和电动力学。 这项工作包括组织一个关于高层​​大气层的多个纪念碑研究的小型工作室，以促进美国和阿根廷研究人员之间的合作。