关键词 ：冰雪灾害 ；环流形势 ；数值模拟 [gap=11669]Key words: Ice-snow damage；Circulation situation；Numerical simulation
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The atmospheric circulation in cold and warm winters is significant. The key regions are the Siberia in sea level pressure field,and 500 hPa height in west Loop to east Iran.
冷、暖冬年大气环流形势差异显著,同期影响因子主要为海平面气压场的西伯利亚高压、河套以西至伊朗以东的500 hPa高度。
参考来源 - 山西冬季气温异常的气候特征及成因分析According to the upper air circulation pattern,we divided the impacting system on sandstorm weather of this region into three patterns.
从高空环流形势图上,可将该地区沙尘暴天气的影响系统分为三种类型。
参考来源 - 期刊学术社区The circumfluence state of this typhoon has radically differences to the others,because of its attacking early.
登陆的时间早导致其环流形势与往年台风有着根本的区别。
参考来源 - 台风“浣熊”天气过程分析·2,447,543篇论文数据，部分数据来源于NoteExpress
根据环流形势进行不同方式的预报服务。
The different forecast service patterns were put forward according to the air circulation status.
模式对西风带大型环流形势的预报能力优于对副热带系统的预报能力。
The model is better working in forecasting of the westerly belt circulation than in prediction of the subtropical circulation.
它能激发大约3对波动，这些波动主要沿“大圆路径”传播，对中高纬的环流形势有重要影响。
It can motivate about 3 pairs of waves that propagate along a "great circle route" and significantly affect the general circulation in mid-high latitudes.
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