Fig.1. Real part of the relative MWF SLPs with respect to the phase at 50°N, 165°W. Contour interval is 1 hPa. Systematic changes in the BO pattern is seen in the North Pacific and North Atlantic.
Fig.2. First EOFS for the 10-30 year band-pass filtered SLP data for a data segment (left) from 1899-1932, (middle) 1933-1966, (right) 1967-2000.
