980816.fig.005a
(a)
980816.fig.005b
(b)
980816.fig.005c
(c)
980816.fig.005d
(d)
Figure 5: Stationary wave geopotential height (m) in JJA for: (a) anomaly for weak HC cases at 200 hPa with Takaya and Nakamura [29] wave activity flux vectors (unit: m2s−2), (b) anomaly for weak HC cases at 500 hPa, (c) anomaly for strong HC cases at 200 hPa with Takaya and Nakamura [29] wave activity flux vectors (unit: m2s−2), and (d) anomaly for strong HC cases at 500 hPa. The contour interval is 3 m and the statistically significant values at the 90%, 95%, and 99% levels according to a two-tailed Student’s -test are shaded in grey scale (see vertical bar).