| 2010年抚顺连续2次降雪天气对比分析 |
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| 引用本文： | 吴春英,全美兰,葛权哲. 2010年抚顺连续2次降雪天气对比分析[J]. 安徽农业科学, 2011, 39(26): 16110-16113 |
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| 作者姓名： | 吴春英 全美兰 葛权哲 |
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| 作者单位： | 辽宁省抚顺市气象局,辽宁抚顺,113006 |
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| 摘 要： | 选取抚顺市2010年12月2次较大降雪天气过程,利用常规资料和NCEP再分析资料,对环流形势场和物理量场进行对比分析。结果表明,500 hPa低涡底部分裂低槽和锋区,地面蒙古气旋和倒槽顶部影响是2次大（暴）雪天气的有利形势。低空急流为大（暴）雪产生带来充足的水汽条件。低层暖舌的存在为大（暴）雪的形成提供了较好的热力条件。低层辐合高层辐散的结构和垂直上升气流加大了上空的抽吸作用,有利于加大降雪产生。涡度下正上负的垂直结构对垂直运动和降雪有利。
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| 关 键 词： | 冷涡 蒙古气旋 低空急流 |
Comparative Analysis on Two Successive Snow Weather in 2010 in Fushun |
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| WU Chun-ying et al. Comparative Analysis on Two Successive Snow Weather in 2010 in Fushun[J]. Journal of Anhui Agricultural Sciences, 2011, 39(26): 16110-16113 |
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| Authors: | WU Chun-ying et al |
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| Affiliation: | WU Chun-ying et al(Fushun Meteorological Bureau of Liaoning Province,Fushun,Liaoning 113006) |
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| Abstract: | Two larger snow weather processes in December of 2010 in Fushun were selected,and conventional material and NCEP reanalysis data were used to comparatively analyze circulation situation field and physical field.The results showed that 500 hPa low vortex bottom was divided into low slots and peak areas,ground Mongolia cyclone and trough top influences were two large(binge) snow weather favourable conditions.Low level jet brought plenty of water vapor conditions for big(binge) snow.The existence of low-rise w... |
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| Keywords: | Cold vortex Mongolia cyclone Low-level jet stream |
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