J4 ›› 2006, Vol. 24 ›› Issue (3): 47-51.

• 论文 • 上一篇    下一篇

中国东部一场罕见的大雾天气成因分析

张新荣刘治国杨建才刘新伟程鹏   

  1. 兰州中心气象台,甘肃兰州730020
  • 收稿日期:2006-05-09 修回日期:2006-06-11 出版日期:2006-09-30 发布日期:2006-09-30
  • 作者简介:张新荣(1956一),男,甘肃渭源人,工程师,主要从事中、短期天气预报及相关研究.E一mail:zh xr@g sma.go v.en
  • 基金资助:

    甘肃省科技厅项目“甘肃省高等级公路建设、营运及道路安全、天气气候保障系统”(2GS042 - B44 -018)资助

Analysis of Formation Cause About a Rare Fog in East China

ZHANG Xin-rong, LIU Zhi-guo, YANG Jian-cai, LIU Xin-wei, CHENG Peng
  

  1. Lanzhou Central Meteorological Observatory, Lanzhou  730020,China
  • Received:2006-05-09 Revised:2006-06-11 Online:2006-09-30 Published:2006-09-30

摘要:

对2004年11月30日至12月4日人冬以来中国东部最大范围的大雾天气过程,从大气环流形势背景及其调整和演变,天气气候背景,大气层结条件,近地面水汽条件等方面进行了分析,结果表明:此次大雾是在大气低层暖平流、大气层结相对稳定和充沛的水汽条件下产生的,雾的消散需要雾区有冷空气人侵,出现大风降温天气。

关键词: :大雾, 中国东部, 大气层结, 天气分析

Abstract:

The large range rare fog process which occurred in East China from November 30 to December 4 in 2004 was analyzed, including the circulation background, its adjustment and evolvement, the climatic background, the atmospheric stratification condition and the vapor condition near surface, etc. Results show that the warm advection at the low level, the stable atmospheric stratification and the abundant vapor condition resulted in this rare fog process, and fog dissipation needs the cold air invasion with the cold front.

Key words: thick fog, East China, atmospheric stratification, synoptic analysis

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