Statistics – Computation
Scientific paper
Nov 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994angeo..12.1091s&link_type=abstract
Annales Geophysicae (ISSN 0992-7689), vol. 12, no. 10-11, p. 1091-1100
Statistics
Computation
10
Atmospheric Models, Computerized Simulation, E Region, Electric Fields, Electron Energy, Magnetohydrodynamic Stability, Particle In Cell Technique, Plasma Spectra, Two Dimensional Models, Computational Grids, Computer Programs, Density Distribution, Doppler Effect, Equations Of Motion, Fast Fourier Transformations, Grid Generation (Mathematics), Velocity Distribution
Scientific paper
We model the modified two-stream plasma instability occuring in the ionospheric E-region using a 2.5-dimensional particle-in-cell code. Compared to previous similar work we concentrate on simulated quantities that can easily be measured in the real ionosphere by coherent radars or rockets, such as the Doppler velocity, the backscattered power, backscattered spectra, aspect angle behavior and electron temperature enhancement. Despite using a relatively small simulation model, we obtain remarkably good agreement between actural observed and simulated plasma parameters. The advantage of such a small system is that we were able to perform (other than in previous related work) many simulation runs with different sets of input parameters, thus studying the unstable plasma under various conditions.
Schlegel Kristian
Thiemann Heinz
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