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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: Competition between winds and electric fields in the formation of blanketing sporadic E layers at equatorial regions

Fig. 2

Ionograms over São Luís on December 13, 2009, from 1040 to 1550 UT, red arrows indicate the presence of Esb layers. In the ionograms, the overhead reflections for ordinary and extraordinary waves are red and green, respectively. The other colors in the ionograms represent off-vertical reflections and are indicative of irregularities in the reflecting layer

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