FIG. 3 Atmospheric and SST anomalies associated with the 3 leading modes of the wintertime decadal SST variability over the NW Pacific based on the JMA data. Linear regression coefficients (dashed for negative; no zero lines) of (a) Z500 (every 5m; thickened for ±20m) and the corresponding wave activity flux (arrows; scaling in m2s-2 at the lower-left corner), (b) 500-1000 hPa thickness (every 5m, thickened for ±20m), (c) SLP (every 0.5 hPa, thickened for ±2hPa) and (d) the COADS SST (every 0.1℃, thickened for ±0.5℃) are plotted with PC for the first mode (see Fig. 4). Shaded where correlation with PC exceeds 95% significance (with 5 degrees of freedom assumed). (e)〜(h): As in (a)〜(d), respectively, but for the second mode. (i)〜(I): As in (a)〜(d), respec-tively, but for the third mode. Anomalies of Z500 and SLP are multiplied by [sin 45°N/sin (lat.)] to mimic streamfunction-like anomalies. Adopted from NY98.
