Siple Station, Antarctica, experiments on staircase frequency ramps as approximations to continuous ramps

Details Siple Station, Antarctica, experiments on staircase frequency ramps as approximations to continuous ramps Siple Station, Antarctica, experiments on staircase frequency ramps as approximations to continuous ramps

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jgr....98.4053m&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 98, no. A3, p. 4053-4061.

Physics

2

Electron Cyclotron Heating, Gyrofrequency, High Energy Electrons, Magnetospheric Electron Density, Wave-Particle Interactions, Whistlers, Antarctic Regions, Doppler Effect, Very Low Frequencies

Scientific paper

The cyclotron resonance hypothesis is tested via experiments in Siple Station, Antarctica, on staircase frequency ramps as approximations to continuous ramps. Experimental evidence supports identification of the electron cyclotron interaction as the underlying process for nonlinear wave growth and emission triggering in the magnetosphere. Based on this wave-particle interaction, second-order resonance theory predicts the observed relative growth of coarse vs fine frequency staircases. It also predicts the observed relative growth of short vs long constant frequency pulses ('dot-dash anomaly'). It was also found that rising frequency ramps often grow more than falling frequency ramps.

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