Numerical simulations of large-scale plasma turbulence in the daytime equatorial electrojet

Details Numerical simulations of large-scale plasma turbulence in the daytime equatorial electrojet Numerical simulations of large-scale plasma turbulence in the daytime equatorial electrojet

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9621263r&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 96, Dec. 1, 1991, p. 21,263-21,279.

Physics

29

Electron Density (Concentration), Equatorial Electrojet, Plasma Density, Plasma Turbulence, Power Spectra, Computerized Simulation, Electric Fields, Electron Mobility, Magnetic Fields, Nonlinear Equations, Numerical Integration

Scientific paper

Numerical simulations of the large-scale electron density irregularities in the daytime equatorial electrojet driven by the gradient drift instability are presented. The nonlocal two-fluid equations are integrated numerically with scales ranging from about 10 km to less than 100 m directly resolved on a 128 x 128 grid, while the effects of the smaller subgrid scales are included with the use of anomalous electron mobility and diffusion coefficients. The instability evolves to a state in which the perturbations propagate primarily in the east-west direction with a typical horizontal wavelength of about 2 km. The numerical results are compared with in situ rocket observations by probing the simulation region along different flight paths, following both eastward and westward trajectories. Electron vertical turbulent velocity distributions are computed from the code output and are contrasted with radar backscatter data. A purely linear nonlocal analysis indicates that all perturbations are eventually damped, either by shear and then diffusion or by recombination.

Affiliated with

Also associated with

No associations

Rating

Numerical simulations of large-scale plasma turbulence in the daytime equatorial electrojet does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Numerical simulations of large-scale plasma turbulence in the daytime equatorial electrojet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numerical simulations of large-scale plasma turbulence in the daytime equatorial electrojet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1539829