Collaborative Research: Synoptic Geospace Systems Analysis Utilizing Instrumentation from South Pole and McMurdo Stations

合作研究：利用南极站和麦克默多站仪器进行天气地理空间系统分析

• 批准号: 1248087
• 负责人: Gary Bust
• 金额: $ 17.07万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-10-01 至 2016-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1248087&HistoricalAwards=false
• 关键词: Collaborative; Research; Synoptic; Geospace; Systems

The ionosphere-thermosphere-magnetosphere (ITM) region constitutes the Earth's upper atmosphere that is part of larger Geospace environment, and ITM is a portal upon which the solar wind energy and momentum enter and impact the entire Geospace domain. Though space weather research over the past decade or so has greatly increased understanding of a wide variety of phenomena associated with the ITM physics, the sum of these individual processes occurring in Geospace does not replicate the rich diversity and scope of this complex region. Thus a more holistic approach to the ITM research is necessary, one that integrates clustered instrumentation at multiple locations to have a simultaneous look at the solar wind interactions within the entire Geospace system. This project will support studies of interrelated ITM phenomena observed at high latitudes through the coordinated and collaborative instruments deployed across Antarctica. Specifically, the project will focus on continued operation of a suite of geospace instrumentation currently deployed at both the South Pole (SPA) and McMurdo (MCM) stations. This suite has a sustained track-record of robust operation and community support: ground-based fluxgate and search-coils magnetometers, ELF and VLF receivers, imaging and broadband riometers, sky-looking optical systems, scintillation GPS receivers, and a number of other instruments. Data from this suite will be synergistically combined to study: (a) synoptic variability of the magnetospheric open-closed boundary (OCB) and associated cusp structures (utilizing fluxgate, photometer, and all-sky imager data); (b) simultaneous ELF whistler events at SPA and MCM and their relationship to ionospheric conditions (using ELF receiver, fluxgate, and GPS data); and (c) auroral and polar cap GPS signal scintillation occurrence, strength, and relationship with the ITM activity (using GPS, fluxgate, riometer, imager, ELF/VLF data). These particular topics are only a partial listing of the work that can, and will, be performed with the data obtained from these instruments, especially via established and planned collaborations with other geospace projects taking place in the Antarctica and at magnetically conjugate regions in the Arctic. These include (but not limit) the MCM lidar system, southern hemisphere SuperDARN radars, Fabry-Perot interferometers, balloon campaign, etc. The project will be utilizing (and also providing) data from/to in-orbit satellites, namely the THEMIS suite of spacecraft and recently launched RBSP spacecraft. This will make use of the ground- and space-based data to provide the science context to proposed observations and reveal new insights into underlying physics of the geospace phenomena. The project will train and educate young scientists, graduate, and undergraduate students.

电离层 - 热圈 - 磁层（ITM）区域构成地球上层大气层，它是较大的地理环境的一部分，ITM是太阳能风能和动量进入并影响整个地理区域的门户网站。尽管在过去十年左右的时间里，太空天气研究已经大大增加了对与ITM物理学相关的各种现象的了解，但在地理空间中发生的这些单个过程的总和并不能复制该复杂区域的丰富多样性和范围。因此，需要采用更全面的ITM研究方法，这种方法可以在多个位置整合群集的仪器，以同时查看整个Geospace系统中的太阳风相互作用。该项目将支持通过在南极洲各地的协调和协作工具在高纬度观察到的相互关联的ITM现象的研究。具体而言，该项目将集中于目前在南极（SPA）和McMurdo（MCM）站部部署的一套地理仪器套件。该套件具有稳健的操作和社区支持的持续轨道记录：基于地面的通量和搜索型磁力仪，ELF和VLF接收器，成像和宽带riometers，skying Optical Optical Systems，闪烁GPS接收器以及许多其他乐器。该套件的数据将与研究结合在一起：（a）磁层开放式边界（OCB）和相关的尖孔结构（利用Fluxgate，光度计和All-Sky Imager数据）的概要变异性； （b）在水疗和MCM上同时进行精灵惠斯勒事件及其与电离层条件的关系（使用Elf接收器，Fluxgate和GPS数据）； （c）与ITM活性（使用GPS，Fluxgate，Riometer，Imager，Imager，Elf/VLF数据）的极光和极高GPS信号闪烁发生，强度和关系。这些特定的主题只是对从这些工具获得的数据进行的部分列表，尤其是通过与其他与其他GeoSpase项目一起在南极洲和北极磁结合区域进行的合作。其中包括（但不限制）MCM激光雷达系统，南半球超级雷达，Fabry-Perot干涉仪，气球运动等。该项目将利用（并提供）从/到Orbit卫星的数据，namis spacecraft和最近启动的RBSP SpaceCraft。这将利用地面和空间数据为拟议的观察提供了科学环境，并揭示了对Geospace现象的潜在物理学的新见解。该项目将培训和教育年轻的科学家，毕业生和本科生。