这是由于被称为南极绕极环流的顺时针环流造成的。
That's because of a clockwise current of water called the Antarctic circumpolar current.
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。
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.
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。
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.
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。
In this paper, the index of polar vortex position is introduced. This index can preferably describe the variability of mid-high latitude circulation anomaly.
结果表明，近45年西太平洋副高与极涡强度都趋加强，纬向环流趋于加强，经向环流则趋减弱。
It turns out that for the past 45 years or so the western Pacific subtropical highs and polar vortices were intensified, and so were zonal circulations as opposed to meridional ones.
结果表明：印度洋海温偶极振荡异常，引起了大气环流的异常，影响了季风强度和雨带分布。
Results show that the IOD anomaly results in anomalous atmospheric circulation, which affects the distribution of the rain belt during rainy seasons in China and the East Asian monsoon.
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 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.
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。
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.
论文的主要的工作是分析极向场主整流器均流、环流控制问题以及电源短路故障。
In this paper, the fundamentals of developing the overhead-contact short fault detector is introduced.
论文的主要的工作是分析极向场主整流器均流、环流控制问题以及电源短路故障。
In this paper, the fundamentals of developing the overhead-contact short fault detector is introduced.
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