Collaborative Research: CEDAR--Development and Application of a Multi-site Observing Network to Study Mid-latitude Thermospheric Dynamics

合作研究：CEDAR——研究中纬度热层动力学的多站点观测网络的开发和应用

• 批准号: 1138931
• 负责人: Miguel Larsen
• 金额: $ 16.87万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-05-01 至 2017-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1138931&HistoricalAwards=false
• 关键词: Collaborative; Research; CEDAR; Development; Application

This is a 3-year experimental project to be undertaken as part of the Coupling, Energetics and Dynamics of Atmospheric Regions (CEDAR) program. The main objective is to install and operate a small network of Fabry-Perot interferometers (FPI) in the central eastern United States. The network will consist of four stations with a site-to-site separation between 350 and 700 km allowing common volume measurements of winds and temperatures in the thermosphere that together provide a regional view of the thermospheric wind structure and dynamics. This includes quantifying the latitudinal and longitudinal extents, propagation direction, and speed of wave events, source regions, and other dynamical quantities that are not possible with current available instrument deployments. Supporting data from available ground-based magnetometers and radars as well as space-based measurements of magnetic fields, ion drifts and auroral precipitation will be used together with a global thermosphere/ionosphere general circulation model to provide a global context for the measurements. In this way, the observations will facilitate breakthrough insights about the dynamics of the thermosphere including the propagation of large-scale disturbances away from the auroral zone and the response of the mid-latitude thermosphere to geomagnetic disturbances. Strategies and algorithms will be developed as part of this project to change the observing strategy in real-time based, for example, upon the local cloud conditions. The operational experience gained from this network will serve as a proof of concept for a much larger-scale network required for a more complete investigation of thermospheric dynamics. The pilot network will make technological advances in regard to issues such as understanding how to operate the chain as a unit, how to consistently process data in real time, and how to visualize and interpret results from multiple stations. The project is a collaboration between a team of professors at Clemson University, the University of Michigan, and University of Illinois. Deployment and operation of the instruments and the network will provide hands on training opportunities for graduate and undergraduate students at each of the universities.

这是一个为期 3 年的实验项目，作为大气区域耦合、能量和动力学 (CEDAR) 计划的一部分。主要目标是在美国中东部安装和运行一个小型法布里-珀罗干涉仪 (FPI) 网络。该网络将由四个站点组成，站点之间的距离在 350 至 700 公里之间，允许对热层中的风和温度进行共同的体积测量，共同提供热层风结构和动力学的区域视图。这包括量化波事件的纬度和纵向范围、传播方向和速度、源区域以及当前可用仪器部署无法实现的其他动力学量。来自现有地面磁力计和雷达的支持数据以及磁场、离子漂移和极光降水的空间测量数据将与全球热层/电离层大气环流模型一起使用，为测量提供全球背景。 通过这种方式，观测将有助于对热层动力学的突破性见解，包括远离极光区的大规模扰动的传播以及中纬度热层对地磁扰动的响应。作为该项目的一部分，将开发策略和算法，以根据本地云状况等实时改变观测策略。从该网络获得的操作经验将作为对热层动力学进行更全面研究所需的更大规模网络的概念证明。该试点网络将在以下问题上取得技术进步：了解如何将链作为一个单元进行操作、如何一致地实时处理数据以及如何可视化和解释多个站点的结果。该项目是克莱姆森大学、密歇根大学和伊利诺伊大学教授团队的合作项目。 仪器和网络的部署和操作将为每所大学的研究生和本科生提供实践培训机会。