主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报

• 论文 • 上一篇    下一篇

辽宁雾预报区的划分初探

邢江月1;邢婉茹2;唐亚平1;李岚1;孙婧1;息涛1; 宋艳秋1   

  1. 1.辽宁省气象科技服务中心,辽宁 沈阳 110016;2.辽宁省气象信息与技术保障中心,辽宁 沈阳 110016
  • 收稿日期:2009-06-22 修回日期:2009-08-10 出版日期:2009-10-28 发布日期:2009-10-28

Preliminary study on fog forecast area division in Liaoning province

XING Jiang-yue1 ;XING Wan-ru2 ;TANG Ya-ping1; LI Lan1 ;SUN Jing1 ;XI Tao1; SONG Yan-qiu1   

  1. 1. Service Center of Meteorological Science and Technology in Liaoning Province, Shenyang 110016, China; 2. Meteorological Information and Technological Support Center in Liaoning Province, Shenyang 110016, China
  • Received:2009-06-22 Revised:2009-08-10 Online:2009-10-28 Published:2009-10-28

摘要: 分析了1997—2006年辽宁境内能见度小于1000 m雾的时空分布特征。结果表明:就雾发生的频率而言,辽宁存在两个高值区和两个低值区,高值区分别位于黄海北部沿岸至辽宁东部山区和锦州北部至阜新一带,低值区分别位于辽宁中北部平原以及朝阳地区。从雾的日变化上看,近86%的雾出现在夜间,近69%的雾出现在02-08时,且多为辐射雾。地域不同但气候条件相近时,雾的日变化与雾发生的次数存在极其相似的特点。依据相似的地理环境和气候条件、雾的日变化特征以及雾发生次数等,将辽宁划分为5个预报区,对雾采取分区预报,以提高雾预报的准确率。

关键词: 雾, 时空分布, 日变化, 预报区划分

Abstract: The temporal and spatial distribution characteristics of fog (visibility less than1000 m) from 1997 to 2006 were analyzed in Liaoning province. The results show that there are two high and two low values’ areas according to the frequency of fog in Liaoning province. Two high values’ areas are located in north shore of the Yellow Sea to the mountain areas of eastern Liaoning and north of Jinzhou to Fuxin, while two low values’ areas are located in north-central plain and Chaoyang regions. About 86% of fogs occurs at night, of which nearly 69% appears from 02:00 to 08:00 (local time) based on diurnal variation of fog. Most of them belong to radiation fog. When geographical regions are different and climatic conditions are similar, the features of daily fog variation are close to that of fog frequency. According to similar geographical environment, climatic conditions, daily fog variations and fog frequency, five forecast areas are divided in Liaoning province. In order to improve the forecasting accuracy, fogs could be forecasted according to this division.

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