| 滨州市两次大雾天气过程的总结分析 |
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| 引用本文： | 刘德安,王凤娇,刘慧,徐玲玲.滨州市两次大雾天气过程的总结分析[J].安徽农业科学,2014,42(4):1117-1120,1131. |
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| 作者姓名： | 刘德安 王凤娇 刘慧 徐玲玲 |
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| 作者单位： | 山东省博兴县气象局,山东博兴,256500;山东省滨州市气象局,山东滨州,256612;山东省无棣县气象局,山东无棣,251900 |
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| 摘 要： | 利用多种常规观测资料对滨州市2011年12月3-7日和2012年3月16-17日2次大雾天气过程进行分析，探讨了大雾天气产生的环流形势及其形成的大气层结特征、垂直运动特征、温湿条件等。结果表明，稳定的环流形势及地面较弱的气压场是大雾形成的有利天气形势；风力小，空气湿度大，有利于雾的形成；低层西南气流是大雾形成并维持的主要水汽来源；近地层形成逆温层，使大气层结处于稳定状态，是大雾形成和维持的重要条件；低层垂直运动较弱，对水汽的扩散不利，有利于雾的维持。
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| 关 键 词： | 大雾 环流形势 垂直运动 温湿条件 层结特征 滨州市 |
Study on Two Heavy Fog Processes of Binzhou City |
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| Institution: | Lit/De-an et al ( Shandong Meteorological Bureau of Boxing County, Boxing, Shandong 256500) |
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| Abstract: | A variety of routine observations was used to analyze the process of the two heavy fog of Binzhou City on December 3 to 7, 2011 and March 16 to 17, 2012, and discuss the circulation situation of the fog formation, the characteristics of its atmospheric stratification, verti- cal motion characteristics, including temperature and humidity conditions. The results showed that stable circulation situation and weak ground pressure field is favorable weather situation for fog formation ; Small wind and higher air humidity is conducive to the formation of fog; The low- level southwesterly flow is the main source of water vapor for fog to form and maintain; Inversion layer near the ground makes atmospheric stratification in a stable state. It is an important condition for fog formation and maintenance ; The weaker vertical movement near the ground a- gainst the diffusion of water vapor. However, it is conducive to the maintenance of fog. |
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| Keywords: | Heavy fog Circulation Situation Vertical motion Temperature and humidity conditions Stratification characteristics BinzhouCity |
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