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第38 卷第4 期2018 年11 月海洋气象学报JOURNAL OF MARINE METEOROLOGY Vol.

38 No.4 Nov.,2018 孙颖, 马艳, 高荣珍, 等. 山东一次持续性平流辐射雾过程特征及成因分析[ J] .海洋气象学报, 2018, 38( 4) : 128135. Sun Ying, Ma Yan, Gao Rongzhen, et al. Analysis of the characteristics and causes of a sustained advectionradiation fog process in Shandong[ J] .Journal of Marine Meteorology, 2018, 38(4) :

128 - 135. DOI: 10. 19513/ j. cnki. issn2096 - 3599. 2018. 04. 014. (in Chinese) 山东一次持续性平流辐射雾过程特征及成因分析 孙颖1,

3 , 马艳2 , 高荣珍2 , 薛允传2 , 江敦双2 , 凌艺2 ( 1. 青岛市城阳区气象局, 山东 青岛 266109;

2. 青岛市气象局, 山东 青岛 266100;

3. 青岛市气象灾害防御工程技术研究中 心, 山东 青岛 266100) 摘要:2017 年1 月1―5 日, 山东出现了一次大范围的平流辐射雾过程.利用山东地区自动气象站 观测资料、 青岛探空站资料、 风廓线雷达资料和NCEP / NCAR 再分析资料, 通过分析此次连续大雾 过程的大尺度环流背景场、 温湿场特征, 地面、 高空气象要素条件, 揭示了其形成原因、 维持机制和 消散机理.结果表明: 中高纬度平直的大气环流、 静稳的垂直结构是此次大雾形成的背景条件;

水 汽输送阶段变化造成的低层水汽浓度变化是大雾阶段变化的原因;

两次弱低槽冷锋过程显著增加 了雾的强度和范围, 也使雾的性质由平流雾变为辐射雾.当低层水汽持续减少, 中低层东风气流 增强并破坏了大气的稳定层结时, 大雾逐渐消散. 关键词:持续性大雾;

平流辐射雾;

水汽输送;

弱低槽冷锋 中图分类号:P458.3 文献标志码:A 文章编号:2096-3599( 2018) 04-0128-08 DOI: 10.19513 / j.cnki.issn2096-3599.2018.04.014 收稿日期: 20180117;

修订日期:

20180709 基金项目: 山东省气象局科研项目( sdqd2017-05) 作者简介: 孙颖, 女, 硕士, 工程师, 主要从事区域气候与海气相互作用、 天气预报相关研究, sunying88@ foxmail.com. Analysis of the characteristics and causes of a sustained advectionradiation fog process in Shandong SUN Ying1,

3 ,MA Yan2 ,GAO Rongzhen2 ,XUE Yunchuan2 ,JIANG Dunshuang2 ,LING Yi2 ( 1. Chengyang Mereorological Bureau,Qingdao 266109,China;

2. Qingdao Mereorological Bureau,Qingdao 266100, China;

3. Qingdao Engineering Technology Research Center for Meteorological Disaster Prevention,Qingdao 266100, China) Abstract A large range of 5day advectionradiation fog weather occurred in Shandong Peninsula from

1 to

5 January 2017. By analyzing the largescale circulation,the temperature and humidity field,and surface and upper meteorological elements,the formation,maintenance,and dissipation of the fog are revealed based on automatic weather station data in Shandong,sounding data and wind profile radar data in Qingdao as well as conventional observation data and NCEP / NCAR reanalysis data. The results are as follows. The flat atmospheric circulation in middle and high latitudes and the static atmospheric vertical structure are the background conditions of this fog. The density change of the water vapor resulting from the phase change during its transfer causes the phase change of the fog. Two weak cold front processes significantly enhance the intensity of the fog and expand its effect range,and also make the advection fog develop into a radiation one. When the moisture on the low layer declines and the easterly wind speed on the boundary layer increases and destroys the stable atmospheric stratification,the fog gradually dissipates. Key words sustained heavy fog;