夏半年赤道东太平洋海温的强的“记忆”能力对长期天气趋势预报有一定的意义。
The strong memory of summer half year SST in EEP plays a role in the long forecast.
极涡是该区域四季存在、冬强夏弱、向上延伸至平流层下部的基本环流系统。
Polar vortex is a basic circulation system which exists in every season (strong in winter and weak in summer) and can extend to the lower level of stratosphere.
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