Organization
Identified question.
Possible answers using experimental data:
Data sets available
Constraints list
Expertise available
Definition of tasks and task coordinator
Almost perpendicular case
Crucial issues:
The data of observations clearly show the presence of the short scales
as small as several c / ωpe.
Authors interpretation: Hada-Lembege, that means the dependence
upon “the NUMBER OF REFLECTED IONS”.
Internal contradiction with the “flow concentration”, Hada-Lembege
scenario has as a cause the growth of the NUMBER of the reflected
ions, IN THE HADA LEMBEGE MODEL THERE ARE NO ANY
NOTIONS OF THE CHANGE OF THE SCALES OR GRADIENTS
in any limiting solutions. The potential profiles clearly scale as the
reflected ions gyration scale.
Crucial question for Hada-Lembege scenario: is there any dependence
of the variability upon the number of reflected ions?
Anternative interpretation: gradient catastrophes scenario, the
steepening of the fronts grows, in terms of experimental data analysis
it will be “scales decrease”, the role of the localized potential electric
field increase, the gradient becomes larger than some limit, the
overturning occurs (Krasnoselskikh, 85, Arefiev et al., 1986, Galeev et
al., 1988).
Possible experimental and simulation answers.
The relative role of the localized electric fields, and comparative
analysis of the electric field / versus magnetic field scales and ratios.
Crucial question for gradient catastrophes scenario: is the variability
associated with the appearance of some small scales and growth of the
relative role of the electrostatic potential small scale structures (for
more details, Arefiev et al., 1986; Krasnoselskikh, 1985).
My mind the crucial issues can be addressed by means of the scales
analysis for the electric field versus magnetic field.
The variability (in general) will be associated with the presence of the
smallest scale less than certain limit.
The remark to be addressed to the simulations: the results will be very
sensitive to the grid size.