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.

研究人员将建造一个法布里-珀罗干涉仪（FPI），并将其安装在赤道电离异常（EIA）的南峰附近，最初安装在梅赛德斯天文台（约3-6个月的活动观测），后来安装在El Leoncito天文台，那里已经有额外的电离层仪器。中性风和温度是了解高层大气过程所需的关键参数。我们对高层大气中性参数的了解大多来自FPI的观测。对250-300公里和95公里处的风和温度的测量将与同地光学和电离层探测仪获得的其他参数结合起来。这项研究的主要目的是增进对该区域离子-中性耦合过程的了解。将进行不同的实验，例如，使用其他FPI进行的中性风纬度比较、纬向风和纬向等离子体漂移的比较（从气辉损耗的运动推断）以及高纬度午夜温度最大值（MTM）效应的研究。这项研究还将有助于对高层大气动力学和电动力学的研究。 这项工作包括组织一个关于高层大气多仪器研究的小型讲习班，以促进美国和阿根廷研究人员之间的合作。