Observations of Continuous Quasiperiodic Auroral Pulsations on Saturn in High Time‐Resolution UV Auroral Imagery

Observations of Auroral Plasma Lines

First VHF auroral radarinterferometer observations

The radar interferometer technique on two separate antennas. The coherence first used at the magnetic equator in Peru is (amplitude) of the cross spectrum at each also a very powerful means for studying auroral frequency is a measure of how localized the plasma instabilities. We present here the first scattering target corresponding to that results, obtained with a 49.92 MHz, 20-25 KW peak part...

Wilson Bentley’s Auroral Observations S

Wilson Bentley’s aurora1 observations in northern Vermont were made over the period from 1883 to 1931, thus encompassing the solar activity minimum at the beginning of the twentieth century. Long term series of aurora1 observations by a single observer in a region of reasonable frequency of occurrence are rare, and are important for the study of solar-terrestrial relationships. Bentley’s data h...

Midnight sector observations of auroral omega bands

[1] We present observations of auroral omega bands on 28 September 2009. Although generally associated with the substorm recovery phase and typically observed in the morning sector, the features presented here occurred just after expansion phase onset and were observed in the midnight sector, dawnward of the onset region. An all‐sky imager located in northeastern Iceland revealed that the omega...

Satellite Observations of Auroral Acceleration Processes

Measurements with satellite and sounding rocket borne instruments contain important information on remote and local processes in regions containing matter in the plasma state. The characteristic features of the particle distributions can be used to explain the morphology and dynamics of the different plasma populations. Charged particles are lost from a region due to precipitation into the atmo...