副热带急流又称南支西风急流，位于200hPa上空副热带高压的北缘，同副热带锋区相联系，是一只强大而稳定的急流。
对比副热带急流所生罗斯·贝波变形半径，阐明海洋天气式涡旋小于和慢于大气中的数十倍。
As compared with Rossby deformation radius in atmospheric jet current synoptic eddies in ocean are ten times as small in their dimensions and ten times as slow as those in atmosphere.
与副热带锋区上急流相关的平流非线性作用在水热收支与涡度平衡中占优势。
Nonline advection which is connected with jet of subtropical frontal zone occupies a main place in heat and moisture budgets and vorticity balance.
对东亚季风气候具有决定性影响的系统，如副热带高压、蒙古高压、印度低压以及西风急流等也模拟得比较好。
The large scale systems such as Subtropical High, Mongolia High, Indian Low which have important influence on the East Asia Monsoon are also simulated pretty well.
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