沙漠与绿洲气象2025，Vol.19Issue(3)：184-192,9.DOI:10.12057/j.issn.1002-0799.2403.12001
2023年元宵节湖北省一次重污染过程的气象成因分析
Meteorological Causes of a Severe Air Pollution Event in Hubei during the Lantern Festival in 2023
摘要
Abstract
This study analyzed the meteorological causes of a severe air pollution event in Hubei Province during the 2023 Lantern Festival(February 4-7,2023)using meteorological observations,air quality data,ERA5 reanalysis,and GDAS data.The analysis focused on synoptic circulation,atmospheric dynamics,thermal conditions,and pollutant trajectories.Key findings include:Six cities experienced heavy pollution(AQI≥200),with Xiangyang affected earliest and Jingzhou recording the highest AQI(215).The event progressed through three phases:transportation phase:pre-cold-front transport dominated initial PM2.5 accumulation;Accumulation phase:stagnant conditions(weak winds<2 m/s,convergence,high humidity,temperature inversion)under a uniform pressure field,mid-level(700 hPa)warm ridge,and low-level(925 hPa)weak cold advection,combined with fireworks emissions on February 5,exacerbated pollution;Dissipation phase:pollutants were cleared by the Lake Baikal cold high and frontal precipitation.Trajectory analysis revealed Xiangyang's PM2.5 primarily originated from southern Henan,while Jingzhou's pollution was influenced by local emissions from Suizhou..关键词
湖北省/大尺度环流/逆温/污染源Key words
Hubei/large-scale circulation/temperature inversion/pollution source分类
天文与地球科学引用本文复制引用
李格,贺晓露,杨涛,郝元甲,王智宇..2023年元宵节湖北省一次重污染过程的气象成因分析[J].沙漠与绿洲气象,2025,19(3):184-192,9.基金项目
国家自然科学基金项目(42475196,42075186) （42475196,42075186）
湖北省自然科学基金项目(2022CFD015) （2022CFD015）
武汉市气象科技联合项目(2023020201010581) （2023020201010581）
