Spontaneous Radio Frequency Emissions from Natural Aurora Spontaneous Radio Frequency Emissions from Natural Aurora

At high latitudes, suitably sensitive radio experiments tuned below 5 MHz detect up to three types of spontaneous radio emissions from the Earth’s ionosphere. In recent years, ground-based and rocket-borne experiments have provided strong evidence for theoretical explanations of the generation mechanism of some of these emissions, but others remain unexplained. Achieving a thorough understanding of these ionospheric emissions, accessible to ground-based experiments, will not only bring a deeper understanding of Earth’s radio environment and the interactions between waves and particles in the ionosphere but also shed light on similar spontaneous emissions occurring elsewhere in Earth’s environment as well as other planetary and stellar atmospheres. Chapter 4 – SPONTANEOUS RADIO FREQUENCY EMISSIONS FROM NATURAL AURORA SPONTANEOUS RADIO FREQUENCY EMISSIONS FROM NATURAL AURORA 4 2 RTO-TR-IST-051