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本文通过分析,指出长江中、下游汛期降水与西太平洋副热带高压的脊线和西伸脊点的位置有密切的关系,而副热带高压的脊线异常变化,则受到南海加热场的影响,并发现南海夏季热交换值与前期叹季）海温场的异常变化有联系,该区海温场的年际变化与黑潮区域的海温场变化非常一致,因此。指出南海区域冬季海温场及其影响的热交换值,对大气环流和汛期降水的影响是不可忽视的一个重要因子,在研究海洋与大气间的相互作用过程中应引起注意。
This paper points out that the precipitation in the middle and lower reaches of the Yangtze River is closely related to the location of the ridgeline and western extension ridge of the western Pacific subtropical high and the anomalous change of the ridgeline of the subtropical high is affected by the South China Sea heating field. The value of summer heat exchange in the South China Sea is related to the anomalous change of the SST in the earlier sighing season. The interannual variation of the SST field in this area is in good agreement with that of the SST in the Kuroshio area. It is pointed out that the heat exchange value of the winter SST field in the South China Sea and its impact on the atmospheric circulation and flood season precipitation is an important factor that can not be ignored. Attention should be paid to the study of the interaction between the ocean and the atmosphere.