The 2013 National Radio Frequency (RF) Ionospheric Effects Workshop; Arecibo, Puerto Rico; April 21-24, 2013

2013 年国家射频 (RF) 电离层效应研讨会；

• 批准号: 1302992
• 负责人: William Bristow
• 金额: $ 4.58万
• 依托单位: University of Alaska Fairbanks Campus
• 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: 2013-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1302992&HistoricalAwards=false
• 关键词: 2013; National; Radio; Frequency; RF

The National RF Ionospheric Effects Workshop is held annually to discuss the science of ionospheric modification experiments. The focus of the workshop is on the interaction of high-power radio frequency (RF) waves from ground-based transmitters with the ionospheric plasma and resultant phenomena such as the generation of ELF waves, ionospheric irregularities, and induced optical emissions. The 2013 meeting will be held April 21-24 at the National Astronomy and Ionosphere Center Arecibo Observatory in Arecibo, Puerto Rico. This award is to coordinate and facilitate the meeting, and to provide support for fifteen students to attend the meeting. In high frequency ionospheric modification experiments interesting and potentially useful effects can be produced. For example, under suitable ionospheric conditions, operating the transmitter in a mode that couples the energy into the D-region can alter the ionospheric conductivity and modulate the electrojet currents, which then radiate electromagnetic waves at the modulation frequency. Waves generated in this manner have been measured with significant amplitudes both on the ground and in space. Other effects include the generation of field-aligned irregularities of the plasma, large-scale modification of the plasma density, and stimulated electromagnetic emissions. There is a community of researchers dedicated to understanding these effects and an annual meeting provides a forum for communicating their results. Providing support for students to attend the workshop serves the goal of ensuring that future generations of radio scientist will have background in this area of research.

国家射频电离层效应讲习班每年举行一次，讨论电离层改造实验的科学问题。讲习班的重点是地面发射机发射的高功率射频波与电离层等离子体的相互作用以及由此产生的现象，如极低频波的产生、电离层不规则性和感应光发射。2013年会议将于4月21日至24日在波多黎各阿雷西博的国家天文和电离层中心阿雷西博天文台举行。此奖项是为了协调和促进会议，并为十五名学生参加会议提供支持。 在高频电离层修改实验中，可以产生有趣的和潜在有用的效果。例如，在合适的电离层条件下，以将能量耦合到D区的模式操作发射机可以改变电离层电导率并调制电射流电流，然后电射流电流以调制频率辐射电磁波。以这种方式产生的波已经在地面和空间上测量到了显著的振幅。其他的效应包括产生等离子体的场向不规则性、等离子体密度的大规模改变和受激电磁发射。有一个致力于了解这些影响的研究人员社区，年度会议为交流他们的结果提供了一个论坛。 为学生参加研讨会提供支持的目的是确保未来几代无线电科学家将在这一研究领域的背景。