李宗恺,潘云仙,周朝辅,蒋维楣,唐士豹,朱曾望. 1986. 山谷风转换期的漫烟扩散模式[J]. 气象学报, 44(4):433-439, doi:10.11676/qxxb1986.062
山谷风转换期的漫烟扩散模式
A DIFFUSION MODEL FOR FUMIGATION WITH MOUNTAIN-VALLEY WIND SHIFT
投稿时间:1984-09-17  修订日期:1985-04-30
DOI:10.11676/qxxb1986.062
中文关键词:  
英文关键词:
基金项目:
作者单位
李宗恺 南京大学大气科学系 
潘云仙 南京大学大气科学系 
周朝辅 南京大学大气科学系 
蒋维楣 南京大学大气科学系 
唐士豹 渡口市环境保护科研监测站 
朱曾望 渡口市环境保护科研监测站 
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中文摘要:
      根据渡口市空气污染监测资料首次鉴别出一种特殊形式的空气污染过程--山谷风转换期的漫烟过程.这种类型的空气污染在春、秋、冬季都经常发生,尤以冬季较严重.为此,发展了山谷风转换期的漫烟扩散模式,可以满意地解释上述观测事实.分析表明,模式不但能对高地面污染浓度的大小、而且能对其发生的时间和地点给出较准确的推断.在上述情况下,SO2地面浓度比该地区日平均浓度大几倍至一个数量级以上,是影响渡口市的主要空气污染过程之一.模式的分析为进一步开展空气质量预测及控制污染的对策研究提供了基础.
英文摘要:
      A special form of air pollution called fumigation with mountain-valley wind shift is first distinguished based on air pollution monitoring data in Dukou city.This kind of air pollution occurs frequently in spring,autumn,and is specially serious in winter season.A model of fumigation accompanaying shift from mountain to vally wind is developed to investigate the observed facts.It is demonstrated that the model provides not only the accurate predictions of the values of high concentration at ground level but also the times and locations of occurence.Ground level concentration of SO2 in above stated case is several to ten or more times stronger than 24-hour means in that area.It is one of the most important processes of air pollution in Dukou city.The model might provide useful guidance for the researches on air quality prediction and control measures.
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