Figure 3 | Scientific Reports

Figure 3

From: The ESA Swarm mission to help ionospheric modeling: a new NeQuick topside formulation for mid-latitude regions

Figure 3

Yearly mean of RMSE between (red) the IRI-NeQuick model and COSMIC derived vTEC values and between (blue) the NeQuick-corr model and COSMIC derived vTEC values, for: (a) the European region; (b) Northern mid latitudes Europe excluded; (c) Southern mid latitudes. In each panel, the R12 solar activity index as well as the number of COSMIC RO data considered for each year are reported. Years highlighted in yellow are those covered by the Swarm mission.

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