HR: 08:15h
AN: NG41A-02    [Abstracts]
TI: MHD simulation of intermittent turbulence
AU: * Wu, C
EM: ccwu@ucla.edu
AF: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, 405 Hilgard Ave., Los Angeles, CA 90095 United States
AU: Chang, T
EM: tsc@space.mit.edu
AF: Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139 United States
AB: In situ observations indicate that the dynamical processes in the space plasma environment generally entail anisotropic and localized intermittent fluctuations. Results from two-dimensional MHD simulations are presented to demonstrate the intermittency. Non-Gaussian probability distribution functions of the intermittent fluctuations are obtained and discussed. Power spectra and local intermittency measures using the wavelet analyses are presented to display the spottiness of the small-scale turbulent fluctuations. The multifractal characteristics of the fluctuations are shown using singularity analysis.
DE: 2149 MHD waves and turbulence (2752, 6050, 7836)
DE: 2764 Plasma sheet
DE: 3200 MATHEMATICAL GEOPHYSICS (0500, 4400, 7833)
DE: 4440 Fractals and multifractals
SC: Nonlinear Geophysics [NG]
MN: Fall Meeting 2005