The polar vortex is a system of wintertime winds.
极地涡旋是冬季风形成的一个风系。
"You had a whole part of the US affected by the Polar Vortex this year, which made stepping outside impossible," he says.
他说：“今年整个美国都受到极地气旋的影响，完全不可能到户外。”
In winter the center of the polar vortex locates about the north of pole, but in summer it shifts to the western hemisphere.
冬季的极涡中心基本位于极心附近偏北的位置，而夏季极涡中心则明显移向西半球。
For the polar vortex area on the Northern Hemisphere, in summer the polar vortex boundary withdraw about 30 latitudes than winter.
冬夏季北半球极涡面积的比较发现夏季和冬季相比极涡边界收缩了近30个纬度。
Meanwhile, planetary waves propagating upwards also affect the polar vortex in the stratosphere, and then affect the Arctic centers of action of the AO.
同时准定常行星波冬季向上传播至平流层并与平流层极涡相互作用从而也影响了北极涛动在北极的活动中心。
It is evident positive relative between the Arctic sea ice and the polar vortex area, yet the relation between the polar vortex area and intensity is so complex.
北极海冰面积和北半球极涡面积为明显的正相关，而北半球极涡面积和极涡强度之间的关系就较为复杂。
The mechanisms coupling the stratosphere and troposphere have been studied by some scientists for understanding the effect of the polar vortex change on the lower circulation.
一些学者已通过平流层和对流层耦合机制的研究探索极涡变化对低层环流的作用。
Besides, the evolutions of the polar vortex, the trough over Bast Asia and the subtropical high prior to Mei-Yu period are also related to the precipitation during Mei-Yu period.
在前期环流演变中发现极涡、东亚槽、副高等对梅雨的丰枯亦有较好的预兆反映。
With the excitement of awards season, the Super Bowl, and that pesky polar vortex, we almost forgot to be crazy excited about the impending Olympics.
在经历了激动人心的“颁奖季”、“超级碗”及恼人的“极地涡旋”后，我们似乎失了对奥运会那份迫切期盼的心。
The new images from the Keck Observatory show the first evidence of a polar vortex at much warmer temperatures.
来自凯克天文台的新图像成为存在更温暖的极地涡流的最早的证据。
The oscillation of polar vortex area over Eurasia propagates separately eastward and westward.
在欧亚大陆的极涡面积大小的振荡分别向东—西两方向传播。
The CAM is able to used in simulating polar vortex.
CAM可以用来对极涡进行模拟研究。
On Earth, the arctic Polar Vortex is typically located over eastern north America in Canada and plunges cold arctic air to the northern Plains in the United States.
在地球上，北极的极地涡流主要集中在北美洲东部的加拿大，将寒冷的北极空气卷入美国北部平原。
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.
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。
The main results show as following: (1) There is obvious inter-annual and inter-decadal variation for polar vortex, including the variation of area, intensity and location.
主要结论如下：(1)北半球及各分区极涡的面积、强度及位置有着很明显的年际及年代际变化。
In this paper, the index of polar vortex position is introduced. This index can preferably describe the variability of mid-high latitude circulation anomaly.
本文给出的极涡位置指数能较好地描述中高纬度环流异常的变率。
The relation between the transition dates in middle stratosphere and the important systems in troposphere such as polar vortex and the subtropical high in West Pacific.
中平流层环流转型与对流层重要系统(极涡、西太平洋副热带高压)存在一定关系。
The center of polar vortex mainly displace towards Asia land and the Pacific.
极涡中心位置主要偏向亚洲大陆及太平洋一侧。
The center of polar vortex mainly displace towards Asia land and the Pacific.
极涡中心位置主要偏向亚洲大陆及太平洋一侧。
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