Collaborative Research: CEDAR: Mid-Latitude and Equatorial Electrodynamics and Severe Space Weather during the Communication/Navigation Outage Forecast System (C/NOFS) Era

合作研究：CEDAR：通信/导航中断预报系统（C/NOFS）时代的中纬度和赤道电动力学与恶劣空间天气

• 批准号: 0535411
• 负责人: Andrew Gerrard
• 金额: $ 2.98万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-02-01 至 2007-10-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0535411&HistoricalAwards=false
• 关键词: Collaborative; Research; CEDAR; Mid; Latitude

The investigators will operate an all-sky imager at the Huancayo Observatory in Peru to observe two-dimensional airglow emissions during the Air Force C/NOFS (Communication/Navigation Outage Forecast System) mission. The instrument comprises a charge-coupled device (CCD) camera with an all-sky lens, telecentric optics, and a five-position filter wheel. The observatory also includes an interferometer called SOFDI, the Second-Generation Optimized Fabry-Perot Doppler Imager, which has been developed and is currently being tested in upstate New York. It will eventually be moved to Huancayo, where it will provide daytime and nighttime zonal, meridional, and vertical wind measurements. These data will be crucial for understanding the development and timing of the F-region dynamo, which subsequently controls the formation of pre-midnight plasma irregularities commonly referred to as equatorial spread F (ESF). The observations will be coordinated with interferometric and imaging radar systems such as those at the Jicamarca Radio Observatory, which provides crucial backscatter measurements of the dynamic properties of the irregularities. The incoherent scatter radar at Jicamarca will measure ionospheric parameters crucial for understanding the preconditioning of the plasma for instability. The ground-based observations will enhance the scientific and operation mission of C/NOFS, which is to understand and predict ionosphere irregularities and scintillations. These scintillations cause disruption of communication and navigation systems, so the results of this study are important for space weather operational forecasting.

调查人员将在秘鲁万卡约天文台操作一台全天空成像仪，以观察空军C/NOFS（通信/导航中断预报系统）使命期间的二维气辉发射。该仪器包括一个电荷耦合器件（CCD）相机与全天空透镜，远心光学，和一个五位滤光轮。该天文台还包括一个名为SOFDI的干涉仪，即第二代优化法布里-珀罗多普勒成像仪，该干涉仪已经开发，目前正在纽约北部进行测试。它最终将被转移到万卡约，在那里它将提供白天和夜间的纬向，纬向和垂直风测量。这些数据对于了解F区发电机的发展和时机至关重要，该发电机随后控制午夜前等离子体不规则性的形成，通常称为赤道扩展F（ESF）。这些观测将与干涉和成像雷达系统协调进行，如在希卡马卡无线电观测站的系统，该系统提供了对不规则体动态特性的重要后向散射测量。位于Jicamarca的非相干散射雷达将测量电离层参数，这些参数对于了解等离子体不稳定性的预处理至关重要。地面观测将加强C/NOFS的科学和业务使命，即了解和预测电离层的不规则性和振荡。这些扰动会导致通信和导航系统中断，因此本研究的结果对空间天气业务预报具有重要意义。