Low-altitude frequency-banded equatorial emissions observed below the electron cyclotron frequency

Spin Effects on the Cyclotron Frequency for a Dirac Electron

The Barut–Zanghi (BZ) theory can be regarded as the most satisfactory picture of a classical spinning electron and constitutes a natural “classical limit” of the Dirac equation. The BZ model has been analytically studied in some previous papers of ours in the case of free particles. By contrast, in this letter we consider the case of external fields, and a previously found equation of the motio...

Very-low-frequency saucers observed on DEMETER

Reflection of low-frequency equatorial waves at arbitrary western boundaries

Procedures are developed for calculating effects of western boundaries of arbitrary geometry on low-frequency equatorial waves. We show that the mass flux incident at the coast is all returned eastward by equatorial Kelvin waves. Short Rossby waves generated as part of the reflection serve only to redistribute mass along the coast. For the case of a uniformly sloping coast we present formulae a...

AKR-like emissions observed at low altitude by the DEMETER satellite

Low Frequency Waves in the Santa Barbara Channel Observed by High Frequency Radar

[1] Three years of high-frequency radar observations in the Santa Barbara Channel reveal sequences of alternating cyclonic and anticyclonic vortices propagating westward with a period of approximately 2 weeks. The sequences last up to a few months and occur intermittently throughout the year. The velocity distributions of cyclones and anticyclones are antisymmetric with a mean propagation speed...