极地气团和热带气团之间的半永久性的锋。它并没有完全连续成带环绕半球。锋区内斜压性强，经向温度差大，是大气能量积蓄区。在适宜的天气形势下，常有气旋发生或发展于其上，常伴有暴雨、强风等严重天气，是中高纬最重要的锋系和主要大气系统之一。
北极锋 [气象] Arctic front ; arctic c front
南极锋 [气象] antarctic front
太平洋北极锋 pacific polar front ; Pacific arctic front
极锋急流 polar front jet ; polar front jet stream
极锋利的 [科技] knife-edged
极锋理论 polar front theory
大西洋极锋 Atlantic polar front ; Atlanticarcticfront
南大洋极锋 [海洋] Southern Polar Front
极锋说 polar-front theory
随着海洋变暖，一个被称为南极极锋的水体——一个支持大量海洋生物生存的营养丰富的海水上升运动——正被进一步推向南方。
As the ocean warms, a body of water called the Antarctic Polar Front—an upward movement of the nutrient-rich sea that supports a huge abundance of marine life—is being pushed further south.
随着海洋变暖，一种被称为南极极锋的水体正被逐步推向南方；南极极锋是一种富含营养的海洋向上运动，它支持着大量海洋生物的生存。
As the ocean warms, a body of water called the Antarctic Polar Front—an upward movement of nutrient-rich sea that supports a huge abundance of marine life—is being pushed further south.
当极地槽和主要的极锋相互作用，会产生不同的过程，会引起短暂的锢囚。
A different process occurs when there is interaction between a polar trough and the main polar front, giving rise to an instant occlusion.
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