Preliminary Analysis on the Global Features of the NCEP CFSv2 Seasonal Hindcasts
Figure 12
Southern Annular Mode (SAM) captured from mean geopotential height at 850 hPa over 20°–90°S during JJA season at 0-month lead for (a) CFSv2 and (b) R2 data; (c) the corresponding EOF time series which gray (black) line is related to R2 (CFSv2). Contour interval is 1 hPa from 0.5 gpm and negative contours are dotted. (a) and (b) are adapted from IRI/LDEO Climate Data Library.
