Collaborative Research: Imaging Auroral Radio Emissions: Multi-technique Investigations Employing Optical, Radar, and Satellite Instruments

合作研究：极光无线电发射成像：采用光学、雷达和卫星仪器的多种技术研究

• 批准号: 0243595
• 负责人: James LaBelle
• 金额: --
• 依托单位: Dartmouth College
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-04-01 至 2009-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0243595&HistoricalAwards=false
• 关键词: Collaborative; Research; Imaging; Auroral; Radio

The auroras are characterized not only be a variety of active optical emissions, but by a wide variety of radio emissions as well. The relationship between different optical features and different radio features, however, is poorly understood. Wave phenomena in the auroral regions play an important role in the energy flow between the magnetosphere and the ionosphere. In order to understand the relationships between optical and radio phenomena in the auroral region it is necessary to monitor the region with a variety of instruments. This project will utilize data from optical imaging instruments, radar backscatter from auroral features, and plasma wave, electric field, magnetic field and particle measurements from satellites crossing the auroral regions. Satellites which will be used in the study include the defense department DMSP satellites, NASA's FAST, WIND, POLAR, SAMPEX, and IMAGE satellites, and the European CLUSTER mission. A ground-based radio imaging system will be used to locate the regions producing auroral Medium Frequency (MF) radio emissions. The investigation will also contribute to studies of the timing and location of magnetic substorm onsets. The radio imaging instruments will be deployed at existing facilities in Alaska and Greenland. The data will be made available to all researchers, including those using the Alaska and Greenland facilities. The research project will also be integrated with educational activities being carried out by the three collaborating institutions (Dartmouth College, Siena College, and the Univ. of Alaska). In particular the educational effort at Dartmouth will include a focus toward the Dartmouth Women-in Science-Program (WISP). Students will be involved with both the engineering aspects of the new instrumentation as well as the analysis of the resulting scientific data.

极光的特征不仅是各种活跃的光学发射，而且还有各种各样的射电发射。然而，不同的光学特征和不同的无线电特征之间的关系却知之甚少。极光区的波动现象在磁层和电离层之间的能量流动中起着重要的作用。为了了解极光区域光学现象和射电现象之间的关系，有必要使用各种仪器监测该区域。该项目将利用来自光学成像仪器的数据、来自极光特征的雷达后向散射以及来自穿越极光区域的卫星的等离子体波、电场、磁场和粒子测量。将在研究中使用的卫星包括国防部的DMSP卫星，NASA的FAST、WIND、POLAR、SAMPEX和IMAGE卫星，以及欧洲集群任务。将使用地面无线电成像系统来定位产生极光中频(MF)无线电发射的区域。这项调查还将有助于研究磁亚风暴开始的时间和地点。无线电成像仪器将部署在阿拉斯加和格陵兰的现有设施中。这些数据将向所有研究人员开放，包括那些使用阿拉斯加和格陵兰设施的研究人员。研究项目还将与三个合作机构(达特茅斯学院、锡耶纳学院和大学)开展的教育活动结合起来。阿拉斯加)。特别是，达特茅斯的教育努力将包括对达特茅斯妇女科学计划(WIP)的关注。学生将参与新仪器的工程方面，以及对由此产生的科学数据的分析。