摘要
利用2017—2021年临沧市逐日、逐时的O_(3)浓度和气象资料,研究了O_(3)浓度变化特征及其与气象要素的关系。结果表明,O_(3)浓度夏季最低,秋末开始增长,冬末出现跃增,春季达到最高。日变化呈“单峰单谷型”,8 h滑动峰值较小时浓度峰值推后4 h。O_(3)浓度与风速、气温日较差、日照呈正相关关系,与湿度呈负相关关系,与气压要素相关性不明显。当日最高气温在28℃以上、气温日较差超过14℃、日最小相对湿度低于20%、日照时数超过7 h、日平均风速超过1.5 m/s时,发生O_(3)污染的可能性增大,需警惕O_(3)污染的发生。
Used the daily and hourly O_(3) concentration and meteorological data of Lincang City from 2017 to 2021 to study the characteristics of ozone concentration change and its relationship with meteorological elements.The results showed that the ozone concentration was the lowest in summer,increased at the end of autumn,jumped at the end of winter and reached the highest in spring.The diurnal variation was“single peak and single valley”,and the 8h sliding peak was 4 hours later than the hourly concentration peak.Ozone concentration was positively correlated with wind speed,daily temperature range and sunshine,negatively correlated with humidity,and not significantly correlated with atmospheric pressure.When the maximum temperature of the day was above 28℃,the daily temperature range was more than 14℃,the daily minimum relative humidity was less than 20%,the sunshine hours were more than 7 hours,and the daily average wind speed was more than 1.5 m/s,the O_(3) pollution potential increases,and the occurrence of ozone pollution needs to be vigilant.
作者
梅建娇
李世成
Mei Jian-jiao(Linxiang District Meteorological Bureau of Yunnan Province,Linxiang,Yunnan 677000)
出处
《农业灾害研究》
2023年第3期129-131,共3页
Journal of Agricultural Catastrophology
关键词
O_(3)污染
气象要素
相关性
变化特征
Ozone pollution
Meteorological elements
Relevance
Change characteristics
