Collaborative Research: RAPID--EclipseMob - Crowdsourcing a Spatial Temporal Study of Low Frequency Propagation Effects Due to a Total Solar Eclipse

合作研究：RAPID--EclipseMob - 众包日全食引起的低频传播效应的时空研究

• 批准号: 1638697
• 负责人: Kiersten Kerby-Patel
• 金额: $ 3.91万
• 依托单位: University of Massachusetts Boston
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-07-01 至 2019-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1638697&HistoricalAwards=false
• 关键词: Collaborative; Research; RAPID; EclipseMob; Crowdsourcing

For centuries, total solar eclipses have provided unique opportunities to study the Sun and the Earths atmosphere. They rarely occur across the continental United States. In August of 2017, an eclipse will travel through the heart of the nation and across the entire continent. Eclipses provide a period of relative quiet in the atmosphere as the radiation from the sun is blocked by the moon. This project will take full advantage of crowdsourcing techniques and inexpensive modern technologies to measure the response of the upper atmosphere (the ionosphere) to low frequency radio waves, thus giving new insight into characteristics of the atmosphere that are not well understood. This project is important to national interests as disturbances to the ionosphere are known to modulate radio waves and in some extreme cases, block them entirely. This project also broadens scientific participation through its involvement of students from high school through graduate school and the general public. Additionally, the project is led by an interdisciplinary team of scientists from underrepresented minorities. Transmitters in two locations (Dixon Naval Radio Transmitter Facility in Sacramento, CA and National Institute of Standards and Technology in Fort Collins, CO) will broadcast at low frequencies (LF), probing the D and E regions of the ionosphere. Receivers across the continental US installed and manned by students and the general public will collect the amplitude data at the given frequencies. A subset of these receivers will also collect phase change data. The goal of this project is to use the collected date to examine how the amplitude and phase changes are affected by eclipse path and the relative distance/locations of the transmitter-receiver pairs. The data collected will be processed in collaboration with the LF Radio Lab at the Georgia Institute of Technology for ionization and recombination behavior of the D and E layers. The results and the data collected will be publicly available through the EclipseMob web presence.

几个世纪以来，日全食为研究太阳和地球大气提供了独特的机会。很少发生在美国大陆。在2017年8月，日食将穿越国家的心脏和整个大陆。当太阳的辐射被月球阻挡时，日食在大气中提供了一段相对安静的时间。该项目将充分利用众包技术和廉价的现代技术来测量高层大气（电离层）对低频无线电波的反应，从而使人们对尚未充分了解的大气特征有新的认识。这一项目对国家利益很重要，因为已知电离层的扰动会调制无线电波，在某些极端情况下会完全阻断无线电波。该项目还通过高中至研究生院学生和公众的参与，扩大了科学参与。此外，该项目由来自代表性不足的少数群体的跨学科科学家团队领导。两个地点的发射机（位于加利福尼亚州萨克拉门托的狄克逊海军无线电发射机设施和位于科罗拉多州柯林斯堡的国家标准与技术研究所）将以低频（LF）进行广播，探测电离层的D和E区域。由学生和公众安装和操纵的美国大陆接收器将收集给定频率的振幅数据。这些接收器的子集也将收集相位变化数据。本项目的目标是利用收集到的数据来研究日食路径和发射机-接收机对的相对距离/位置如何影响幅度和相位变化。收集的数据将与格鲁吉亚理工学院的LF无线电实验室合作处理，以研究D层和E层的电离和复合行为。调查结果和收集的数据将通过EscapeMob网站公开。

项目成果

VLF/LF and the 2017 Total Solar Eclipse

VLF/LF 和 2017 年日全食

• 发表时间: 2017
• 期刊: Society of Amateur Radio Astronomers Annual Conference
• 作者: Liles, W.;Lukes, L.;Nelson, J.K.
• 通讯作者: Nelson, J.K.

On the use of solar eclipses to study the ionosphere

利用日食研究电离层

• 发表时间: 2017
• 期刊: 15th International Ionospheric Effects Symposium
• 作者: Liles, W;Mitchell, C.;Cohen, M.;Earle, G.;Frissell, N.;Kirby-Patel, K.;Lukes, L.;Miller, E.;Moses, M.;Nelson, J.
• 通讯作者: Nelson, J.

Receiver and Antenna Kit for EclipseMob Participants

适用于 EclipseMob 参与者的接收器和天线套件

• 发表时间: 2017
• 期刊: Antenna Applications Symposium
• 作者: Keegan, K.;Kerby-Patel, K.C.;Liles, W.;Nelson, J.;Lukes, L.
• 通讯作者: Lukes, L.

Receiver system design for crowdsourced experiments on the effects of a solar eclipse on low-frequency radio wave propagation

日食对低频无线电波传播影响众包实验的接收系统设计

• DOI: 10.1109/aps.2016.7696338
• 发表时间: 2016
• 期刊: 2016 IEEE International Symposium on Antennas and Propagation (APSURSI
• 作者: Fallacara, James;Lopez, Diego;Pappas, Jordan;Tavares, Emanuel;Wong, Brandon;Kerby-Patel, K.C.;Cuckov, Filip;Nelson, Jill;Liles, W. C.
• 通讯作者: Liles, W. C.