西北太平洋台风路径与厄尼诺关系初步分析
EL NINO AND TRACKS OF TYPHOON OVER THE NORTHWEST PACIFIC
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摘要: 本文分析了近百年西北太平洋台风路径与厄尼诺的关系,得出了在厄尼诺年,西太平洋(120°E以东)转向的台风路径比在反厄尼诺年偏多,而西行路径则偏少。厄尼诺与反厄尼诺年的台风路径差异主要是受副高形势的影响,有明显的月际差异。Abstract: In this paper, the association of typhoon tracks over the Nortnwest Pacific with E1 Nino during the Past 100 years was analysed. The preliminary results show that the percentage of westward-moving typhoons in E1 Nino years is less than in anti-E1 Nino years, but the percentage of recurving tracks (east of 120°E)is lavger.The difference of typhoon tracks in E1 Nino years and anti-E1 Nino years are mainly affected by the Western Pacific subtropical high. It is noticed that they are evidently different from each other in monthly synoptic characteristics.
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