摘要
本文分析了1949～1988年期间的埃尔-尼诺现象与西北太平洋上强热带气旋发生频数的关系指出:埃尔-尼诺年仅在120°～150°E洋面上的强热带气旋发生数较非埃尔-尼诺年偏少,南海和150°～180°E洋面上则分别相近和偏多;埃尔-尼诺年的次年,仅150°～180°E洋面上偏少,150°E以西和南海则与常年相当。文中还对比分析了较典型的埃尔-尼诺年以及强热带气旋发生多和少的埃尔-尼诺年的热带大气环流,初步揭示了热带对流层上、下部及经向和纬向垂直环流的差别。
The relationship between El Nino and appearance of strong tropical cyclone over Northwest Pacific from 1949 through 1988 is analyesd and the results show that the number of strong tropical cyclones is less in El Nino years than in non-El Nino only over 120°~150°, but it is approximately the same and more over the South China Sea and 150°~180°, respectively; in the next year of El Nino, this number is less only oves 150°~180°, and it is nearly the same over 120°~150° and the South China Sea.
The tropical atmospheric circulaions in the typical El Nino year are compared with those in El Nino years with less and more numbers of strong tropical cyclones,revealing the differences in upper and lower tropical troposphere and those in longitudinal and latitudinal vertical circulations
出处
《海洋预报》
北大核心
1992年第1期12-20,共9页
Marine Forecasts
基金
国家气象局台风科研基金的资助
