乌海市2015年1月一次连续空气重污染过程分析
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摘要
2015年1月10日～13日,乌海市出现了一次明显的连续空气重污染过程,这次污染过程持续时间较长。利用同期空气污染指数和常规气象观测资料,本文对这一期间的空气污染气象条件进行了较为详细的分析。结果表明,这次持续污染过程是出现在风速小、无雨和有轻雾或霾的气象条件下,高空主要受偏西气流控制,地面形势主要为高压底部或是倒槽顶部。极厚极强的逆温层的持续存在是造成污染物高浓度最重要的气象条件。
Using the same period of air pollution index and conventional meteorological data,the analysis was taken in detail on the continuous heavy air pollution process of Wuhai in 10-30 Anuary,2015.The result indicates that this continuous air pollution process occurred under the misty or hazy conditions with gentle breeze and no rain. At the high level there is westerly flow,while the surface is the bottom of the high pressure or the top of the inverted trough.The persistence of extremely thick and strong inversion layer and minimal wind speed is the most important meteorological condition for high concentration pollution.
Using the same period of air pollution index and conventional meteorological data,the analysis was taken in detail on the continuous heavy air pollution process of Wuhai in 10-30 Anuary,2015.The result indicates that this continuous air pollution process occurred under the misty or hazy conditions with gentle breeze and no rain. At the high level there is westerly flow,while the surface is the bottom of the high pressure or the top of the inverted trough.The persistence of extremely thick and strong inversion layer and minimal wind speed is the most important meteorological condition for high concentration pollution.
引文
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[3]李令军,王英,李金香等.2000-2010北京大气重污染研究[J].中国环境科学,2012,32(1):23-30.
[4]程念亮,李云婷等.北京市空气重污染天气类型分析及预报方法简介[J].现代科学与技术,2015,38(5):189-194.