XU Yong,LUO Jinglan,CHEN Ning,et al.The Relationship between Daily Maximum Mixed Layer Height and Typical Atmospheric Pollutants in Sichuan Basin[J].Journal of Chengdu University of Information Technology,2025,40(03):408-414.[doi:10.16836/j.cnki.jcuit.2025.03.024]
四川盆地日最大混合层高度与典型大气污染物的关系
- Title:
- The Relationship between Daily Maximum Mixed Layer Height and Typical Atmospheric Pollutants in Sichuan Basin
- 文章编号:
- 2096-1618(2025)03-0408-07
- 分类号:
- P404
- 文献标志码:
- A
- 摘要:
- 为找出四川盆地日最大混合层高度特征及其与典型大气污染物的关系,基于2016-2022年四川省成都市温江站、达州市达川站和宜宾市宜宾站的气象观测资料,利用干绝热法计算3个城市的逐日最大混合层高度,结合同期空气质量数据,分析日最大混合层高度特征及其与PM2.5、O3浓度的关系,并寻找污染阈值。结果表明:四川盆地平均日最大混合层高度为1191 m,月分布呈双峰型,各市日最大混合层高度出现在2200 m以下的总频率均大于90%; 1-3月、11-12月各市污染日平均日最大混合层高度均低于总平均日最大混合层高度,4-10月则相反; 日最大混合层高度与O3浓度为较强显著正相关,与PM2.5浓度仅在轻中度污染时才有较好的显著负相关; 97%以上PM2.5污染发生日最大混合层高度低于2200 m时,O3污染主要发生在日最大混合层高度(m)在(1000,2400]。
- Abstract:
- To find out the characteristics of daily maximum mixed layer height and its relationship with typical air pollutants in the Sichuan Basin, based on the meteorological observation data of Wenjiang Station in Chengdu City, Dachuan Station in Dazhou City and Yibin Station in Yibin City in Sichuan Province from 2016 to 2022, the daily maximum mixed layer height of three cities was calculated using the dry adiabatic method. Combined with air quality data from the same period, the daily maximum mixed layer height characteristics and their relationship with PM2.5 and O3 concentrations were analyzed, and pollution thresholds were found. The results show that the average daily maximum mixed layer height in Sichuan Basin is 1191 m, the monthly distribution is bimodal, and the total frequency of the daily maximum mixed layer height below 2200 m in each city is greater than 90%. The average daily maximum mixed layer height of pollution in each city from January to March and November to December is lower than the total average daily maximum mixed layer height, while the opposite is true from April to October. The maximum daily mixed layer height has a strong and significant positive correlation with O3 concentration, and a good and significant negative correlation with PM2.5 concentration only when the pollution is light and moderate. More than 97% of PM2.5 pollution occurs when the maximum daily mixed layer height is lower than 2200 m, and O3 pollution mainly occurs when the maximum daily mixed layer height is(1000,2400].
参考文献/References:
[1] 俞科爱,陈磊,张晶晶,等.浙江省大气混合层高度变化特征分析[J].气象科技,2017,45(4):735-744.
[2] 廖志恒,许欣祺,谢洁岚,等.珠三角地区日最大混合层高度及其对区域空气质量的影响[J].气象与环境学报,2019,35(5):85-92.
[3] 蔡子颖,张敏,韩素芹,等.天津重污染天气混合层厚度阈值及应用研究[J].气象,2018,44(7):911-920.
[5] 梁智豪,王东海,梁钊明.探空观测的边界层高度时空变化特征.应用气象学报,2020,31(4):447-459.
[6] 俞科爱,陈磊,张晶晶,等.浙江省大气混合层高度变化特征分析[J].气象科技,2017,45(4):735-744.
[7] 陈磊,俞科爱,林宏伟,等.宁波市大气混合层厚度变化特征及其与空气污染的关系[J].气象与环境学报,2017,33(4):40-47.
[8] 张红,黄勇,王儒威,等.铜陵市空气污染物浓度与大气混合层高度的关系[J].环境科学与技术,2018,41(2):63-70.
[9] 叶堤,王飞,陈德蓉.重庆市多年大气混合层厚度变化特征及其对空气质量的影响分析[J].气象与环境学报,2008,24(4):41-44.
[10] 徐栋夫,温李明,曹萍萍.2015—2019年成都夏季地面臭氧浓度与气象要素关系及臭氧污染天气分型[J].气象与环境科学,2023,46(5):25-32.
[11] 周颖,向卫国.四川盆地大气混合层高度特征及其与AQI的相关性分析[J].成都信息工程学院学报,2018,35(5):562-571.
[12] 叶如辉,肖天贵,谢志轩,等.新都区冬季空气污染扩散与气象要素相关性研究[J].高原山地气象研究,2022,42(2):104-112.
[13] 成翔,耿蔚,赵晓莉,等.基于格点资料的四川大气混合层高度特征及其与空气质量的关系[J].高原山地气象研究,2021,41(1):68-72.
[14] 罗静兰,唐东民,胡超,等.眉山市一次秋季持续大气污染过程气象条件分析[J].四川环境,2022,41(6):116-122.
[15] 程水源,席德立.关于确定大气混合层高度的几种方法[J].环境科学进展,1997,5(4):63-67.
[16] 廖国莲.大气混合层厚度的计算方法及影响因子[J].中山大学研究生学刊(自然科学、医学版),2005,26(4):66-73.
[17] 周燕秋,倪长健,刘培川.成都市混合层厚度的计算及方法对比[J].成都信息工程学院学报,2015,30(1):102-105.
[18] 潘巧英,李婷苑,陈靖扬,等.广州地区臭氧污染天气条件垂直结构特征分析[J].气象与环境科学,2023,46(2):92-100.
相似文献/References:
[1]康 岚,朱克云,张 杰,等.引发四川盆地区域性暴雨的高原MCS特征分析[J].成都信息工程大学学报,2017,(04):402.[doi:10.16836/j.cnki.jcuit.2017.04.010]
KANG Lan,ZHU Ke-yun,ZHANG Jie,et al.The Featuer Analsis on Tibetan Plateau MCS Which Brings
Heavy Regional Precipitation over Sichuan Basin[J].Journal of Chengdu University of Information Technology,2017,(03):402.[doi:10.16836/j.cnki.jcuit.2017.04.010]
[2]刘子堂,李谢辉,杨静坤.四川盆地极端降水事件时空变化特征及未来趋势分析[J].成都信息工程大学学报,2022,37(04):456.[doi:10.16836/j.cnki.jcuit.2022.04.015]
LIU Zitang,LI Xiehui,YANG Jingkun.Analysis on Spatiotemporal Change Characteristics and Future Trends of Extreme Precipitation Events in Sichuan Basin[J].Journal of Chengdu University of Information Technology,2022,37(03):456.[doi:10.16836/j.cnki.jcuit.2022.04.015]
[3]蒋薇薇,李国平.四川盆地西部一次夜间致灾暴雨的水汽特征综合分析[J].成都信息工程大学学报,2025,40(03):339.[doi:10.16836/j.cnki.jcuit.2025.03.014]
JIANG Weiwei,LI Guoping.Comprehensive Analysis of Moisture Characteristics for a Disastrous Nocturnal Rainstorm Event in the Western Sichuan Basin[J].Journal of Chengdu University of Information Technology,2025,40(03):339.[doi:10.16836/j.cnki.jcuit.2025.03.014]
备注/Memo
收稿日期:2024-04-29
通信作者:罗静兰.E-mail:460679292@qq.com