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| 合肥市雾日气象条件分析 | |
| 引用本文： | 魏文华,王体健,石春娥,张浩.合肥市雾日气象条件分析[J].气象科学,2012,32(4):437-442. |
| 作者姓名： | 魏文华 王体健 石春娥 张浩 |
| 作者单位： | 1. 南京大学大气科学学院,南京210093;安徽省气象局,合肥230061 2. 南京大学大气科学学院,南京,210093 3. 安徽省气象科学研究所,合肥,230031 |
| 基金项目： | 中国气象局新技术推广项目(CMATG2010M16);公益性行业(气象)科研专项(GYHY201206011);国家重点基础研究发展计划(973计划)项目(2010CB428503) |
| 摘 要： | 利用合肥市气象观测站2005—2009年常规观测资料,统计分析了该市雾的月、季变化,及雾日地面气象要素特征;同时,应用后向轨迹和聚类分析的方法,研究了雾日大尺度输送特征。结果表明,合肥雾日数12月最多,7月最少;雾日局地气象条件表现为高湿、微风、偏东或西北风向;合肥雾日与输送形势关系密切,雾日近地层(10 m)以偏东方向的轨迹最多,在边界层中上部(1 000 m)以西南轨迹和本地轨迹最多。 |
| 关 键 词： | 雾 气象条件 后向轨迹 聚类分析 |
| 收稿时间： | 9/6/2011 12:00:00 AM |
| 修稿时间： | 2011/10/20 0:00:00 |
Analysis of weather conditions for fog in Hefei |
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| WEI Wenhu,WANG Tijian,SHI Chune and ZHANG Hao.Analysis of weather conditions for fog in Hefei[J].Scientia Meteorologica Sinica,2012,32(4):437-442. | |
| Authors: | WEI Wenhu WANG Tijian SHI Chune and ZHANG Hao |
| Institution: | School of Atmospherical Sciences, Nanjing University, Nanjing 210093,China;Anhui Meteorological Bureau, Hefei 230061, China;School of Atmospherical Sciences, Nanjing University, Nanjing 210093,China;Anhui Institute of Meteorological Sciences, Hefei 230031, China;Anhui Institute of Meteorological Sciences, Hefei 230031, China |
| Abstract: | The monthly and seasonal variation of fog in Hefei and related surface weather elements characteristics were analyzed using conventional observation data from 2005 to 2009. Back-trajectory and cluster analyses were used to study the large scale transport characteristics on fog days. The results show that the number of fog days was the muximum in December, but it was the minimum in July. The weather conditions of fog can be characterized by high humidity,breeze and easterly or northwest wind. The fog occurrence was closely related to the transport pattern. The fog was associated with easterly (from east) trajectory at the ground level (10m),southwesterly and local trajectory at upper boundary layer (1000m). |
| Keywords: | Fog Meteorological situation Back-trajectory Cluster analysis |
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