Review Article

Stratification of the Low-Latitude and Near-Equatorial F2 Layer, Topside Ionization Ledge, and F3 Layer: What We Know about This? A Review

Figure 7

Isolines of the electron density (solid lines) in 106 cm−3, plotted according to the data of outer sensing of the ionosphere at the turn of 2333 June 5, 1987. Dash-dotted line shows hmF2, dashed lines: the geomagnetic field lines with tops at 1000, 1500, and 2000 km, the vertical line marks the position of the geographic equator, crosses show the upper and lower limits of the stratification, triangles: the upper limit of the stratification above the satellite altitude, circles: position of the maximum of ionization ledge. (from Prutensky, [23].)
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