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Earth, Planets and Space
Figure 5 | Earth, Planets and Space

Figure 5

From: Patterns of GPS-TEC variation over low-latitude regions (African sector) during the deep solar minimum (2008 to 2009) and solar maximum (2012 to 2013) phases

Figure 5

Diurnal hourly VTEC variation during the solar maximum phase (2013). The figure shows the VTEC variation in the sampled days with their corresponding Ap index over Debark, Bahir Dar, Asosa, Metu, Arba Minch, and Negele (with station numbers 1, 2, 3, 5, 7, and 8, respectively). Arrows indicate the time at which the nighttime enhancement of the VTEC values start.

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