545463.fig.005a
(a)
545463.fig.005b
(b)
545463.fig.005c
(c)
545463.fig.005d
(d)
Figure 5: Partial correlation coefficient for JFM cyclone frequency versus ENSO (excluding PNA and NAO). Correlation (shaded). 2-tailed 90% significance (hatched) for (a) NCEP1_5801, (b) ERA40_5801, (c) NCEP1_7910, and (d) NCEP1_5078.