影响山东的热带气旋与西太平洋副热带高压的关系

Relationship Between the Tropical Cyclone influencing Shandong Province and Subtropical High in the Western Pacific

利用1949—2003年西太平洋副热带高压资料和影响山东热带气旋(TC)资料,通过合成、相关分析等方法对其进行了研究。结果表明:影响山东TC频数偏多年份,夏季西太平洋副热带高压位置偏北、偏东,副高强度偏弱,副高面积指数偏小;频数偏少年份,西太平洋副热带高压位置偏南、偏西,副高强度偏强。影响山东TC强度偏强年,西太平洋副热带高压位置偏南,副高西伸脊点偏西。影响山东TC强度偏弱年,夏季西太平洋副热带高压位置偏北,副高西伸脊点更偏东些。

Based on the data of Subtropical High in the Westem Pacific and the tropical cyclone （TC） influencing Shandong Province from 1949 to 2003, the relationship between the tropical cyclone influencing Shandong Province and Subtropical High in the Western Pacific is analyzed by using synthesized method and correlation analysis. The results indicate： In the years of more TC influencing Shandong Province, the location of Subtropical High in the Westem Pacific in summer is to the north and east and the intensity is weaker, the area index of Subtropical High is less. In the years of less TC, the location is just the reverse. In the years of stronger TC, the location of Subtropical High is to the south and the westem end of the ridge is to the west. In the years of weaker TC, the location is on the contrary.