HF Heater Effect on Natural Spread F Phenomenon at Arecibo, Puerto Rico

研究人员和几名学生在实验室模拟实验中使用阿雷西博多功能环形设施（VTF）来研究电离层等离子体修饰中较低混合波的作用。在最近的实验中，Langmuir波的谱结合了PDI衰减谱和另一种衰减谱。这种新的衰减谱可能源于o型波的参数衰减；与PDI工艺相比，它要求更高的阈值，新升级的Arecibo加热器超过了这一阈值。利用“倾斜”的高频加热器，PI旨在了解高频加热器增强朗缪尔波湍流的物理机制。

The investigator, with several students, uses the Arecibo Versatile Toroidal Facility (VTF) in laboratory simulation experiments to study the role of lower hybrid waves in ionospheric plasma modifications. In recent experiments, the spectrum of Langmuir waves combines the PDI decay spectrum and a different decay spectrum. This new decay spectrum may stem from parametric decay of O-mode wave; compared with the PDI process, it requires a higher threshold, exceeded by the newly upgraded Arecibo heater. Using the 'tilted' HF heater, the PI aims to understand the physical mechanisms of HF heater-enhanced Langmuir wave turbulence.