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Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: Ionospheric irregularity behavior during the September 6–10, 2017 magnetic storm over Brazilian equatorial–low latitudes

Fig. 6

F layer peak density (a), minimum virtual height of F layer hʹF (b) and F layer true heights for the 3–9 MHz frequencies (c) measured by the São Luís Digisonde for the storm period of 6 to 10 September 2017. The color correspondence for each frequency is shown in the left part of the lower panel. Horizontal traces represent range SF (blue) and frequency SF (green). The light blue shaded areas represent the prereversal period of 21:00–24:00 UT (18:00–21:00 LT)

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