[1]唐延婧,宋丹,柳艳香,等.贵州高速公路低能见度分类预报方法研究[J].气象研究与应用,2015,36(01):96-99,113.
　TANG Yanjing,Song Dan,Liu Yanxiang,et al.Research on Low-visibility Weather Classification Forecasting procedure in motorway of Guizhou[J].Journal of Meteorological Research and Application,2015,36(01):96-99,113.
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贵州高速公路低能见度分类预报方法研究()
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气象研究与应用[ISSN:1673-8411/CN:45-1356/P]

卷:
第36卷
期数:
2015年01期
页码:
96-99,113
栏目:
应用气象
出版日期:
2015-12-20

文章信息/Info

Title:
Research on Low-visibility Weather Classification Forecasting procedure in motorway of Guizhou
作者:
唐延婧1;  宋丹1;  柳艳香2;  廖波1
1. 贵州省气象服务中心, 贵阳 550002;
2. 中国气象局公共服务中心, 北京 100081
Author(s):
TANG Yanjing1;  Song Dan1;  Liu Yanxiang2;  Liao Bo1
1. Guizhou Province Meteorological Service Center, Guiyang, 550002, China;
2. Meteorological Administration Public Service Center, Beijing 100081
关键词:
辐射雾; 锋面雾; 气象要素; 预报方法
Keywords:
Radiation fog; Frontal fog; Meteorological factors; forecasting method
分类号:
P49
摘要:
贵州低能见度天气按对交通影响程度分4级,以各类低能见度天气特征差异为基础,对分类型、分级别的低能见度天气下的气象要素进行考察。发现在辐射雾中,多个气象要素与能见度等级之间有一定关联,但要素范围有重叠,难用做预报依据;各等级地形雾、锋面雾的气象要素差别不太明显,且4级能见度统计效果不好。各类型低能见度天气发生的气象条件有所不同,可以作为预报依据:辐射雾和锋面雾在变温有明显区别,辐射雾为明显的负变温。三类雾都存在总体发生与否的湿度阈值,但差别并不太大。辐射雾发生时和前6小时基本无降水,而弱降水利于出现锋面雾和地形雾等。辐射雾大多发生在静风和弱风情况下,锋面雾、地形雾发生时的风速依次增大。
Abstract:
The low-visibility weather of Guizhou was classified into 4 levels by their influence on traffic. The metrological factors under different levels and types of low-visibility weathers were studied by the differences of each type of low-visibility weathers. Under the radiation fog, there are certain correlations between multiple meteorological elements and level of visibility, but some overlap in elements made it difficult for forecasting; The difference in all levels of terrain fog and frontal fog meteorological elements are not obvious, and statistical result of the 4th levels is bad.
Under different meteorological conditions different type of low visibility weather occurring can be used for forecasting:Radiation fog and the frontal fog have the obvious difference in varying temperature, radiation fog is obvious negative varying temperature. There are humidity threshold for generating these three types of frog, but the differences are not too big. Before 6 hours of radiation fog occurring, there is no precipitation, and this is good for the appearance of frontal fog and fog terrain, etc. Radiation fog occurs mostly in the calm wind and weak wind, when the frontal fog and terrain frog appeared, the wind speed increases in turn.

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备注/Memo

备注/Memo:
收稿日期:2014-10-25。
基金项目:公益性行业(气象)专项GYHY201406029)、(GYHY201306043)贵州科技厅项目(黔科合J字[2013] 2148号)中国气象局预报员专项项目(CMAYBY2013-061)共同资助。
作者简介:唐延婧(1982-),女,工程师,学士,主要从事中短期预报服务及相关研究工作。E-mail:370128885@qq.com
更新日期/Last Update: 1900-01-01