title: Observation of large-scale density cavities and parametric-decay instabilities in the high-altitude discrete auroral ionosphere under pulsed electromagnetic radiation.
abstract: A large density cavity that measured 2000 km across and 500 km in height was observed by DEMETER and Formosat/COSMIC satellites in temporal and spatial relation to a new mode of propagation of electromagnetic (em) pulses between discrete magnetic field-aligned auroral plasmas to high altitudes. Recorded positive plasma potential from satellite probes is consistent with the expulsion of electrons in the creation of density cavities. High-frequency decay spectra support the concept of parametric instabilities fed by free energy sources.
authors.affiliation: International Foundation for Science, Health, and the Environment, Panorama City, California, USA. awongUCLA@aol.com
authors.forename: A Y
authors.initials: AY
authors.lastname: Wong
authors.forename: J
authors.initials: J
authors.lastname: Chen
authors.forename: L C
authors.initials: LC
authors.lastname: Lee
authors.forename: L Y
authors.initials: LY
authors.lastname: Liu