Nonlinear Ionospheric Plasma Studies at Arecibo

阿雷西博天文台和位于伊洛特的强大高频源，加上便携式高频和超高频接收器，构成了研究中纬度电离层的主要天然实验室。这笔拨款是为了研究用两个强高频信号照射阿雷西博上空电离层时所观察到的影响。通过同时测量这些波的振幅，将评估拍频波对边带产生的贡献。将进行进一步的研究，以检查发射的极低频波的传播特性。提出的实验将有助于理解相关非线性过程的作用。* * * / /

The Arecibo observatory and the powerful HF source at Islote when supplemented by portable HF and ULF receivers comprise a major natural laboratory for studying the midlatitude ionosphere. This grant is to study the effects observed when the ionosphere over Arecibo is irradiated with two strong HF signals. By measuring simultaneously the amplitudes of these waves, the contribution of the beat - frequency wave on sideband production will be assessed. Further studies will be undertaken which will examine the propagation characteristics of the launched ULF wave. The proposed experiments will aid in understanding the roles of the relevant nonlinear processes. *** //