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成都平原臭氧浓度特征分析及春夏季预报

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为定量分析成都平原地区各季臭氧污染的气象成因,探讨区域内城市之间的差异,基于气象环境站点数据统计分析2015-2020年逐年各季成都平原八市的臭氧时空变化特征和污染天数,结果表明,成都平原地区四季的臭氧日变化特征基本一致,呈单峰型,16时左右臭氧浓度达到峰值,且夏季臭氧峰值均明显高于其它季节,春季次之,冬季最少.成都平原地区4-10月易出现臭氧轻度污染,其中4-8月易出现中度污染,城市臭氧污染程度可排名为:成都>德阳>眉山>资阳>乐山>绵阳>遂宁>雅安.并利用臭氧浓度与各气象要素的相关性,以多元回归分析方法建立的逐季节多指标叠套的高浓度臭氧预报方程经过实况数据检验,可预报性较好.
Analysis and Spring and Summer Forecast on Characteristics of Ozone Concentration in Chengdu Plain
To quantitatively analyze the meteorological causes of ozone pollution in Chengdu Plain and to explore the differences among cities in this region,the spatial and temporal characteristics of ozone and pollution days in each of the eight cities in Chengdu Plain from 2015 to 2020 were analyzed.The results showed that the diurnal variation of ozone in the Chengdu Plain was basically the same,with a single peak,and the ozone concentration reached its peak at about 16:00.The peak ozone concentration in summer was significantly higher than that in other seasons,followed by spring and the least in winter.Chengdu Plain was prone to mild ozone pollution from April to October,with moderate pollution likely to occur from April to August.The ozone pollution in the cities of Chengdu Plain was ranked as follows:Chengdu>Deyang>Meishan>Ziyang>Leshan>Mianyang>Suining>Ya'an.Based on the correlation between ozone concentration and meteorological factors,the high ozone concentration forecast equation with multiple indexes overlapped by season was established with the multiple regression method.After the test with real data,the equation showed good predictability.

Chengdu Plainozone pollutionozone forecast

赵欢、陈思思、张净雯

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成都市气象局,成都 610000

成都平原 臭氧污染 臭氧预报

高原与盆地暴雨旱涝灾害四川省重点实验室科技发展基金项目

SCQXKJQN202103

2024

四川环境
四川省环境保护科学研究院 四川省环境科学学会

四川环境

CSTPCD
影响因子:0.444
ISSN:1001-3644
年,卷(期):2024.43(5)
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