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Table 1. Background TEC, RMSE and normalized RMSE values of GPS TEC and predicted values (NN TEC and IRI-2007 TEC) for different days (equinox and solstice days) in 2007 over Chumphon station.

From: TEC prediction with neural network for equatorial latitude station in Thailand

Date Background TEC (TECU) RMSE (TECU) between Normalized RMSE between
NN TEC IRI-2007 TEC NN TEC IRI-2007 TEC
March 20 14.281 2.797 4.164 0.195 0.291
June 21 10.904 1.965 2.743 0.180 0.251
September 23 14.006 2.430 3.412 0.173 0.243
December 25 10.805 1.468 2.142 0.135 0.198
4 studied-day 12.499 2.165 3.115 0.173 0.249
All year 2007 14.078 2.296 3.881 0.163 0.275