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It is becoming more and more important for humans to question their impact on
the environment as it is increasingly apparent that they are able to modify
significantly its natural state and behaviour, intentionally or unintentionally.
The study of VLF signals that originate near to the ground and their effects on the
ionosphere and
plasmasphere is part of the puzzle that
needs to be solved. Lightning, power lines and VLF transmitters all have the
capability to inject strong signals into the upper atmosphere.
The aim of this project is to work towards an understanding of the individual
and collective effects of these phenomena. The project will investigate the
relative importance of the effects of lightning, PLHR
and VLF transmitter signals on the energetic particle population of the
plasmasphere.
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