Fig. 7From: Prediction of global ionospheric VTEC maps using an adaptive autoregressive modelBias and RMS of the differences between forecasting products ARPG and the final CODG in 2009 and 2015. The blue and red dotted lines depict the differences between ARPG with and without an F test and CODG, respectively. a Bias of ARPG minus CODG in 2009. b Bias of ARPG minus CODG in 2015. c RMS of ARPG minus CODG in 2009. d RMS of ARPG minus CODG in 2015Back to article page