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Figure 13


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Time series of the median of the TEC N-S gradient at 20 km (bottom), 50 km (middle) and 100 km (top) and the corresponding Ne gradient medians from three equatorial models in the geographical sector (47°W, 17–28°S). Shaded areas indicate the ±1 sigma spread around the median. The selected period refers to 21–27 January 2014.

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