There was an obvious wave train in high latitude area , its centers located at polar region surrounding Greenland island , East Siberian , and north Pacific .

• 该海区的海冰异常造成中、高纬度环流的异常，在极区与欧亚高纬地区之间存在距平波列，其中心分别位于极区(格陵兰岛周围)、东西伯利亚、北太平洋。