本文通过EOF分解，分析讨论了西北太平洋副热带高压季节性移动与海温场之间的联系。
Based on EOF, the relation of the seasonal movement of the subtropical high over the Northwestern Pacific with SST has been discussed.
热带西北太平洋西部热含量增加时，副热带高压脊点偏西，移入南海的热带气旋频数增加，反之减少。
When heat content increased, the ridge point of subtropical high moved more westly, and frequency of tropical cyclone moving from Pacific into South China Sea increased, otherwise it decreased;
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