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副极地低压,又称极圈气旋带,位于北纬60度和南纬60度。从极地高压带流向低纬的气流,在南北纬60度附近与盛行西风相遇,形成锋面。相对暖而轻的西风气流爬升到高空,形成副极地上升气流。上升气流在高空分为两部分向相反方向流动,各自形成中纬环流和高纬环流。但是在亚欧大陆,冬季时的蒙古高压影响强烈,副极地低压只能保留在海洋上面。[1]该地多风暴,西方航海界有尖叫60度的说法。[2]
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