Fig. 13From: Polar motion prediction using the combination of SSA and Copula-based analysisAbsolute errors of the predicted \({\hbox{PM}}_{x}\) (up) and \({\hbox{PM}}_{y}\) (down) using SSA, SSA+Gumbel Copula, SSA+Clayton Copula, SSA+Frank Copula compared with Bulletin A product. The unit is [mas]Back to article page