THE TROPICAL PACIFIC–INDIAN OCEAN TEMPERATURE ANOMALY MODE AND ITS IMPACT ON ASIAN CLIMATES - Advances in Geosciences - page 89

Fig. 4. Surface air temperature anomaly in China (unit: ◦ C), with the rest being the
same as Fig. 3.
China, the impacts of the pure Pacific SSTA are very different from the
composite impacts of the Pacific-Indian Ocean SSTA.
In a similar way, Fig. 4 illustrates, respectively, the surface air
temperature anomalies in East China for the four types of SSTA
distributions of Fig. 2, featuring that corresponding to the quasi-normal
year of the Pacific SSTA, the Changjiang-Huaihe River Basin gets
noticeable positive temperature anomaly (Fig. 4(a)); corresponding to the
quasi-normal year of the Pacific-Indian Ocean SSTA, South China receives
remarkable positive temperature anomaly (Fig. 4(b)); corresponding to
the pure El Nino year, Northeast China accepts substantially negative
temperature anomaly; corresponding to the positive phase of the Pacific-
Indian Ocean temperature anomaly mode, the middle-low region of the
Changjiang River is controlled by negative temperature anomaly, and North
China and the southern part of Northeast China have positive temperature
anomaly (Fig. 4(d)). Evidently, the results indicate that the impacts of
the pure Pacific SSTA on the summer temperature in East China are also
different from those of the Pacific-Indian Ocean SSTA composite mode.
In the summer of 2003, persistent severe hot weather has occurred in large