气象与环境学报2025，Vol.41Issue(3)：85-92,8.DOI:10.3969/j.issn.1673-503X.2025.03.011
瓦里关地面臭氧变化特征及大气环流的影响研究
Study on the variation characteristics of surface ozone and the impact of atmospheric circulation over Mt.Waliguan area
摘要
Abstract
By using the daily averaged data of Mt.Waliguan during 2016-2022,this study analyzes the relationship of variation's characteristics of near surface ozone concentration and their relationships with multiple meteorologi-cal factors such as air temperature,wind direction and speed over Mt.waliguan area,and the influences of abnor-mal upper air circulation upon surface ozone,where it reveals the variation characteristics and the impact of atmos-pheric circulation over Mt.waliguan area.The result shows that the daily averaged concentration shows significant fluctuation throughout the year,reaching highest in summer and lowest in winter.In the meantime,the surface o-zone has a positively and negatively correlation with temperature and relative humidity,the higher temperature and lower relative humidity cause the rising of surface ozone.The northeasterly wind of Mt.walugan is in favor of sur-face ozone's accumulation,thus resulting in higher concentration,meanwhile,the southwesterly wind will cause the rapid proliferation in the horizontal direction,which is difficult to form the higher concentration.In addition,when there is a"Foehn effect"in the atmosphere,will also trigger the rising of surface ozone.The upper air circulation patterns over Mt.waliguan also affects the concentration of surface ozone,when the 100 hPa circulation pattern be-longs to the western type,the polar vortex is weak,and presence of the warm high or ridge over Mt.waliguan,and causes the rising of concentration of surface ozone;conversely,when the 100hpa circulation pattern belongs to the eastern type,the polar vortex is strong,the presence of low pressure and a trough of low pressure will cause the de-creasing of surface ozone.关键词
地面臭氧/气象因子/焚风效应/环流形势Key words
Surface ozone/Meteorological factors/Foehn effect/Circulation patterns分类
资源环境引用本文复制引用
乜虹,王凯,张晓云,刘青青,宋传刚,罗文昭,郑向东,刘猛..瓦里关地面臭氧变化特征及大气环流的影响研究[J].气象与环境学报,2025,41(3):85-92,8.基金项目
国家自然基金项目(42165014)和青海省气象局重点科研项目(QXZD2023-05)共同资助. （42165014）
