Research Article

Numerical Simulation of the Time Evolution of Small-Scale Irregularities in the F-Layer Ionospheric Plasma

Figure 4

The time variations of one component of the electric field, namely, 𝐸 𝑥 , lying in the plane perpendicular to the magnetic field, calculated at the center of the simulation region for the first situation with the start from the completely electrically neutral state (a), also 𝐸 𝑥 , calculated at the point, displaced from the center of the simulation region in the 𝐗 direction for a distance of sixteen Debye lengths ( 1 6 𝜆 0 𝐷 𝑒 ) , for the second situation when the initially created irregularity was studied (b). The electric field components are given in units of 10−6 V/m in (a) and in V/m in the (b). The normalized time, 𝑡 / 𝑇 𝑝 𝑒 , that is, the time in units of the equilibrium period of Langmuir oscillations of electrons, 𝑇 𝑝 𝑒 , is shown on the abscissa.
353640.fig.004a
(a)
353640.fig.004b
(b)