THE SOUTHERN OSCILLATION AND ITS ASSOCIATEDSUMMER RAINFALLS IN CHINA-CONCURRENTDISCUSSION OF THE RELATIONSHIP BETWEEN THE SOURTHERN OSCILLATION AND WALKER CIRCULATION

The relationship between Southern Oscillation (SO) and summer rainfalls in China is further studied by using empirical analyses. Two possible channels for the effects of SO on such rainfalls are proposed. One is mainly brought about by the subtropical anticyclone over the South Pacific through the air-sea interactions ; the other is related to the Australia-Indonesia low pressure trough through the Southern-Northern Hemisphere interaction.