本文關(guān)鍵詞： 重污染 氣象要素 地面形勢(shì)場(chǎng)　出處：《環(huán)境科學(xué)與技術(shù)》2016年S2期 　論文類型：期刊論文

【摘要】：利用常規(guī)氣象觀測(cè)資料和邯鄲環(huán)境監(jiān)測(cè)資料,針對(duì)邯鄲2015年12月26日下午PM_(10)和PM_(2.5)污染指數(shù)驟升的重污染天氣過(guò)程,從逐時(shí)污染指數(shù)變化、氣象要素的演變、氣象擴(kuò)散條件和逐時(shí)地面要素場(chǎng)特征等方面進(jìn)行了分析。結(jié)果表明:PM_(10)和PM_(2.5)污染指數(shù)的陡升與氣溫驟降、相對(duì)濕度驟升相對(duì)應(yīng);逆溫層的存在不利于空氣污染物的擴(kuò)散;地面風(fēng)場(chǎng)的輻合早于污染指數(shù)的快速增加,地面風(fēng)速逐漸增大和北方濕冷空氣的南下,與污染指數(shù)陡升相對(duì)應(yīng),導(dǎo)致本次重污染天氣過(guò)程的產(chǎn)生。
[Abstract]:Based on the conventional meteorological observation data and the Handan environmental monitoring data, according to the heavy pollution weather process in the afternoon of December 26th 2015 in Handan, where the pollution index suddenly rises, the change of the pollution index is from time to time, and the evolution of meteorological elements. The results show that the sharp rise of the pollution index corresponds to the sudden drop of air temperature and the sudden rise of relative humidity, and the existence of inversion layer is not conducive to the diffusion of air pollutants. The convergence of the surface wind field is earlier than the rapid increase of the pollution index, and the surface wind speed gradually increases and the wet cold air in the north goes south, corresponding to the sharp rise of the pollution index, which leads to the production of the heavy polluted weather process.
【作者單位】： 邯鄲市氣象局;涉縣氣象局;
【基金】：河北省科技計(jì)劃項(xiàng)目(13275416)
【分類號(hào)】：X51

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本文編號(hào)：1554596