Self-Organized Criticality and Intermittent Turbulence in the Plasma Sheet

Details Self-Organized Criticality and Intermittent Turbulence in the Plasma Sheet Self-Organized Criticality and Intermittent Turbulence in the Plasma Sheet

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agusmsm31b..06k&link_type=abstract

American Geophysical Union, Spring Meeting 2002, abstract #SM31B-06

Other

2740 Magnetospheric Configuration And Dynamics, 2788 Storms And Substorms, 3220 Nonlinear Dynamics, 3230 Numerical Solutions

Scientific paper

Our recent analysis of Polar UVI image data has now made the evidence for self-organized criticality (SOC) in the magnetospheric dynamics difficult to interpret in any other way. The results support our earlier suggestion that this SOC component of the dynamics is centered in the plasma sheet and that it is related to the flow bursts and associated localized reconnections that have been observed there. It is necessary now to develop an interpretation of SOC in a plasma physical context. Numerical simulations of a 2-D plasma sheet model that may evolve into SOC will be discussed. Chang has suggested that intermittent turbulence may be associated with SOC in the plasma sheet. Angelopolous et al. [Phys. Plasmas, 1999], taking advantage of a rare conjunction of the Geotail and Wind spacecraft in the plasma sheet, have shown that relative cross-tail plasma velocities at the spatially separated spacecraft positions exhibit a Castaing distribution, indicative of intermittent turbulence. It will be shown that relative velocities in the numerical solutions of the 2-D plasma sheet model also exhibit this type of distribution when the model appears to be evolving in the neighborhood of the SOC limit. Based on the model behavior, the relationship between intermittent turbulence and SOC will be discussed.

Affiliated with

Also associated with

No associations

Rating

Self-Organized Criticality and Intermittent Turbulence in the Plasma Sheet 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 Self-Organized Criticality and Intermittent Turbulence in the Plasma Sheet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-Organized Criticality and Intermittent Turbulence in the Plasma Sheet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1724468