The Trimpi effect in Antarctica - Observations and models

Details The Trimpi effect in Antarctica - Observations and models The Trimpi effect in Antarctica - Observations and models

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jatp...52..341s&link_type=abstract

(URSI, Conference on Wave-Induced Particle Precipitation and Wave-Particle Interactions, Dunedin, New Zealand, Feb. 5-11, 1989)

Physics

9

Electron Precipitation, Ionospheric Propagation, Lightning, Antarctic Regions, Computerized Simulation, Solar Terrestrial Interactions, Very Low Frequencies, Wave Interaction

Scientific paper

A high-latitude, low VLF waveguide mode propagation computer model for use in studies of the Trimpi effect has been developed. The model has been tested against observations of controlled transmissions from a dipole antenna of variable (simulated) orientation. Burst precipitation of energetic electrons at high latitudes, near to, and poleward of, the plasmapause, may be studied by means of the Trimpi effect utilizing the Siple VLF transmitter and a network of receivers in Antarctica. The model reproduces well the published observations of Trimpi events in this high-latitude region. OPALnet, an experiment designed to study lightning electron precipitation through its effects on the phase and amplitude of signals from the Omega VLF navigational network, is described.

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