Event Details

Space and Planetary Physics webinar

Auroral Kilometric Radiation (AKR) emanates from acceleration regions from which escaping particles also excite a number of phenomenon in the terrestrial ionosphere, notably aurorae. As such, AKR emission is a barometer for particle precipitation, indicating activity in the magnetosphere. Observations suggest that the emission is mostly limited to the nightside, relating to bursty tail reconnection events. The WAVES instrument on the Wind satellite has provided measurements of radio and plasma phenomenon at a range of locations for over two decades, and in this study a recently developed method is utilised to examine AKR over statistical timescales. First, AKR emission is automatically selected from amongst other radio emissions in Wind WAVES data. Individual AKR events, or ‘bursts’ are then automatically identified using a novel technique. Connections between AKR and solar wind observations allude to solar wind driving of energetic particle precipitation at different local times. Automatic detection of AKR bursts will be extended over the Wind epoch to allow statistical analysis of solar wind driving of these terrestrial radio emissions.

If someone from outside of the SPP group would like to join the webinar, please send a request to w.gould@lancaster.ac.uk