J4 ›› 2011, Vol. 29 ›› Issue (2): 174-181.

• 论文 • 上一篇    下一篇

华东地区一次辐射雾的数值模拟分析

刘汉卫1 ,潘晓滨1 臧增亮1 ,何宏让1范红军2
  

  1.  1. 解放军理工大学气象学院,江苏南京211101; 2. 解放军理工大学理学院,江苏南京211101
  • 收稿日期:2011-03-14 修回日期:2011-04-12 出版日期:2011-06-30 发布日期:2011-06-30
  • 作者简介:刘汉卫( 1987 - ) ,男,汉族,贵州盘县人,硕士研究生,主要从事中尺度气象学和数值模拟研究. E - mail: liuhanw13236586759@163. com

Simulation Analysis of a Radiation Fog Occurred in the East of China

LIU Hanwei1,PAN Xiaobin1,ZANG Zengliang1,HE Hongrang1,FAN Hongjun2   

  1. 1. College of Meteorology,PLA University of Science and Technology,Nanjing 211101,China;
    2. Institute of Science,PLA University of Science and Technology,Nanjing 211101,China
  • Received:2011-03-14 Revised:2011-04-12 Online:2011-06-30 Published:2011-06-30

摘要:

利用非静力中尺度模式WRF3. 2 对2010 年11 月17 日出现在华东的一次辐射雾生消过程进行了数值模拟分析。结果表明: 此次大雾是一次典型的辐射雾,稳定的环流形势、近地面层充足的水汽和辐射降温是造成此次大雾的根本原因。WRF 模式对此次雾具有很好的模拟能力,模拟雾生消的时间、强度和范围都与实况比较接近,特别是雾中心的模拟,与实况吻合较好; 积云参数化对雾的模拟比较敏感,采用浅对流Kain - Fritsch 积云参数化方案对雾的模拟效果最好。

关键词: 辐射雾, 非静力中尺度模式WRF3. 2, 数值模拟

Abstract:

 The non - hydrostatic mesoscale model WRF3. 2 was utilized to simulate a radiation fog occurred in the east of China on November17,2010. The results show that this fog was a typical radiation fog,and the stable circulation position,plenitudinous vapor and temperature drop caused by radiation were the main reasons of this dense fog. WRF model had a good ability to simulate this fog event,the time of the fog formation and dissipation,the intensity of the fog and fog area,especially the center of the fog simulated by the model were close to the fact. The cumulus parameter sheme was sensitive to simulation of the fog,the fleet convection Kain - Fritsch cumulus
parameter scheme has the best simulating effect.

Key words:  radiation fog, the non - hydrostatic mesoscale model WRF3. 2

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