辽宁中部城市群臭氧污染特征及CAMx模式预报效果检验  

作　　者：王闯 刘闽 孙学斌 侯乐 高木木 王佳音 杜毅明 王男 

机构地区：[1]辽宁省沈阳生态环境监测中心,辽宁沈阳110167

出　　处：《环境保护与循环经济》2022年第11期81-86,共6页environmental protection and circular economy

摘　　要：利用2020年辽宁省中部7个城市环境空气质量臭氧监测数据,分析辽宁中部臭氧污染特征。对比扩展综合空气质量模型(CAMx)模式未来24 h臭氧预报数据定性、定量评估模式对辽宁中部7个城市预报效果,结果表明,2020年辽宁中部城市中210800,210100较高,210500最低;6月、7月各城市臭氧浓度最高,每日臭氧最大小时值在14:00—16:00之间出现最多。全年预报评估,CAMx模式对7个城市冬季存在明显低估;城市210800预报落在合理范围内最高达到98.4%。7个城市的冬季预报,城市210300的春季、夏季预报,210500的秋季预报效果较差,未达到O3-8 h预报准确性的要求,其他季节均达到要求。Based on the ozone monitoring data of air quality in seven cities in central Liaoning Province in 2020,the characteristics of ozone pollution in central Liaoning Province were analyzed. By comparing the ozone forecast data of CAMx model in the next 24 hours qualitatively and quantitatively evaluate the forecast effect of CAMx model on 7 cities in central Liaoning Province. The results show that 210800 and 210100 site are the highest and 210500 site is the lowest in central Liaoning in 2020. The ozone concentration was the highest in June and July,and the maximum daily ozone time value was between 14:00 and 16:00. Annual forecast evaluation showed that CMAx model significantly underestimated 7 cities in winter. The city of 210800 forecast fell within a reasonable range of 98.4%.Winter forecasts for 7 cities,spring and summer forecasts for the 210300 city and autumn forecasts for the 210500 city are poor,failing to meet the accuracy requirements of O3-8 h forecasts,and all other seasons meet the requirements.

关 键 词：臭氧 评估 数值预报 

分 类 号：X831[环境科学与工程—环境工程]