Aimed at the important impact of polar vortex on weather, climate and environment, we studied deeply polar vortex by virtue of dada analysis, dynamical statistic diagnoses and numerical simulation.

• 基于极涡在天气、气候及环境变化中的重要作用,本文通过资料分析、动力统计诊断和数值模拟研究,指出极涡的活动特征及其与阻塞高压、副热带高压、东亚季风等大气环流因子相互之间的动力统计关系;