Fig. 9.From: TEC prediction with neural network for equatorial latitude station in ThailandGPS TEC, NN TEC and IRI-2007 TEC, the difference between the GPS TEC and the NN TEC (ΔTEC), and the difference between the daily SSN and 81-day mean SSN (ΔSSN), all at 0030 LT, and the Ap index, all in 2007 over Chumphon station.Back to article page