Phase Portrait

The corresponding three-dimensional phase portraits are shown in 3b and 3c and it is clear that the time delay given by the first minimum of the mutual information is better. The system seems to be in a state past a break up of a torus with the short period corresponding to the long Rossby wave period of about 90 days and the long period corresponding to the oscillation of the base state with an average period of about 2.5 years.

Global Singular Value Decomposition/Embedding local SVD spectra Phase portraits Dimension estimates