Collaborative Research: RINGS - RISR INvestigation of the Geospace System

合作研究：RINGS - RISR 地球空间系统研究

• 批准号: 1339918
• 负责人: Qian Wu
• 金额: $ 22.32万
• 依托单位: University Corporation For Atmospheric Res
• 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: 2013-08-15 至 2018-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1339918&HistoricalAwards=false
• 关键词: Collaborative; Research; RINGS; RISR; INvestigation

A collaborative multi-instrument investigation of the high-latitude geospace system will be carried out, motivated by the completion of the Resolute Bay Incoherent Scatter Radars RISR-N and RISR-C, the first ever ISRs deployed to the geomagnetic polar regions. Initial results from RISR-N have revealed an unexpectedly structured and dynamic plasma environment. In order to understand these new measurements and to fully exploit this new diagnostic capability, an experimental campaign is proposed that will synthesize RISR observations with data from the collocated optical sensors (Fabry-Perot Interferometer and Optical Mesosphere Thermosphere Imager), the PolarDARN HF (high frequency) radars, the THEMIS and NORSTAR camera networks, and the global ISR network (in particular, Sondrestrom, the Poker Flat Incoherent Scatter Radar (PFISR), and the European Incoherent Scatter Radar (EISCAT)). This project will leverage the new diagnostic information provided by RISR to foster collaborative studies of the high latitude geospace system. The guiding questions of the investigation arise from this systems view: 1. What governs the internal structure and HF propagation characteristics of plasma density patches? 2. How do auroral processes affect structure and composition of the polar ionosphere, and what are the global-scale implications? 3. What are the important interactions between the plasma and neutral gases at polar latitudes? 4. How do the aforementioned processes control the distribution of plasma on high-latitude flux tubes? This project will provide a wealth of information on the ionospheric boundary for modelers to enhance our understanding of the ionospheric boundary. The investigation of plasma structuring mechanisms will have implications for communications and Global Navigation Satellite System (GNSS) signal propagation. The investigation of plasma-neutral interactions will shed light on how the lower atmosphere drives the global geospace system. The research will be carried out through an 8-institution international collaborative (4 from the U.S., 2 from Canada, 2 from Japan). The project will contribute to training the next generation of geophysicists, and the team will include three early career investigators.

将进行高纬度地理水上系统的协作多仪器调查，这是由固定湾不一致的散点雷达RISR-N和RISR-C的完成的动机，这是有史以来第一个部署到地理极性区域的ISRS。 RISR-N的初始结果揭示了一个意外的结构化和动态的等离子体环境。为了理解这些新的测量结果并充分利用这种新的诊断能力，提出了一项实验活动，将与来自同谋光学传感器（Fabry-perot干涉仪和光学中的光层热层成像器）的数据合成RISR观察结果扑克扁平不连贯的散射雷达（PFISR）和欧洲不连贯的散点雷达（Eiscat）。该项目将利用RISR提供的新诊断信息来促进高纬度地理空间系统的协作研究。调查的指导性问题来自此系统观点：1。是什么控制了血浆密度斑块的内部结构和HF传播特征？ 2.极光过程如何影响极性电离层的结构和组成，全球规模的含义是什么？ 3。在极纬度处的血浆和中性气体之间的重要相互作用是什么？ 4。上述过程如何控制血浆在高纬度通量管上的分布？该项目将为建模者提供有关电离层边界的大量信息，以增强我们对电离层边界的理解。血浆结构机制的研究将对通信和全球导航卫星系统（GNSS）信号传播产生影响。血浆中性相互作用的调查将阐明较低的大气如何驱动全球地理系统。这项研究将通过8个机构国际合作（来自美国的4个，来自加拿大2，来自日本的2个）进行。该项目将有助于培训下一代地球物理学家，该团队将包括三名早期职业调查员。