巴彦浩特山谷风环流特征及其对O3浓度的影响研究  

Characteristics of Mountain and Valley Breezes in BAYANHOT and Its Influence on Ozone Concentration

作　　者：吴八一 叶汪洋 王芳 斯鑫鑫 朱瑾 Wu Bayi;Ye Wangyang;Wang Fang;Si Xinxin;Zhu Jin(Alxa Branch of Inner Mongolia Autonomous Region Environmental Monitoring Station,Alxa 750300,China;Anhui Kechuangzhongguang Technology Co.,Ltd.,Hefei 230088,China)

机构地区：[1]内蒙古自治区环境监测总站阿拉善分站,内蒙古阿拉善750300 [2]安徽科创中光科技股份有限公司,安徽合肥230088

出　　处：《环境科学与管理》2023年第11期51-56,共6页Environmental Science and Management

基　　金：内蒙古自治区科技计划项目(No.2021GG0100)。

摘　　要：利用巴彦浩特2018年-2021年空气质量及气象数据探究山谷风环流对夜间O_(3)浓度高值的影响。结果表明,东西方站点昼夜风向差异明显,受山谷风环流影响,导致环保局新楼站点夜间O_(3)浓度相对更高,东西方站点O_(3)浓度日变化特征的差异性明显。2018年-2021年,环保局新楼站点的O_(3)浓度夜间下降幅度越小,受到山谷风的影响越大。典型山谷风过程中,三个国控站点的O_(3)浓度低值时段与山谷风风向转换时间相对应。The air quality concentration and meteorological data of BAYANHOT from 2018 to 2021 was analyzed to explore the impact of mountain and valley breezes on the high values of O_(3) concentration at night.The results indicated that there was a significant difference in the day and night wind directions between the eastern and western stations,affected by the mountain and valley breezes,the O_(3) concentration at the New Building of the Environmental Protection Bureau Station was relatively higher at night,and the diurnal variation characteristics of ozone concentration at the eastern and western stations were significantly different.From 2018 to 2021,the smaller the nighttime decline of O_(3) concentration at the New Building of the Environmental Protection BureauStation,the more it was affected by mountain and valley breezes.In the process of typical valley wind,the low value period of O_(3) concentration at the three national control stations corresponds to the wind direction conversion time of valley wind.

关 键 词：巴彦浩特 O_(3) 昼夜差异 山谷风 

分 类 号：X51[环境科学与工程—环境工程]