气象2025，Vol.51Issue(7)：865-875,11.DOI:10.7519/j.issn.1000-0526.2025.022101
"22·12"郑州大雾天气成因分析
Cause Analysis of Heavy Fog Weather in December 2022 in Zhengzhou
摘要
Abstract
On 28 December 2022,multiple vehicle collisions occurred on the Zhengxin Yellow River Bridge due to heavy fog.Based on ERA5 reanalysis and surface observation data,the method of disturbance-based synoptic analysis is used to diagnose and analyze the heavy fog episode.The results show that the heavy fog weather had the characteristics of strong local suddenness,low visibility,and significant nighttime cooling.The low visibility caused by heavy fog and the ice and slippery bridge deck caused by high humid-ity and low temperature were the meteorological reasons for the vehicle rear-end collision accidents.The synoptic conditions were stable,with weak cold air at the bottom and warm ridges in the southwest trans-port of warm and humid airflow into the foggy area,and the circulation pattern was favorable for the gen-eration of fog.The water vapor flux near the bridge was high,and there existed weak water vapor conver-gence,shallow inversion layer and strong radiation cooling effect,which provided favorable dynamic,water vapor,and thermal conditions for the occurrence and persistence of radiation fog.The disturbance signals of wind speed,relative humidity,temperature and specific humidity can better reflect the predicta-ble signals of heavy fog compared to the corresponding disturbance signals.The comprehensive analysis of multiple disturbance factors can help determine the dissipation time of fog.关键词
辐射雾/天气分析/扰动/可预报信号Key words
radiation fog/weather analysis/disturbance/predictable signal分类
天文与地球科学引用本文复制引用
胡孟然,孔海江,韩铮铮,田力,齐伊玲,元保军.."22·12"郑州大雾天气成因分析[J].气象,2025,51(7):865-875,11.基金项目
河南省自然科学基金项目(222300420468)、中国气象局复盘总结专项(FPZJ2023-079)、河南省级科技研发计划联合基金项目(232103810093)、河南省科技攻关项目(242102320016)和安阳国家气候观象台开放基金项目(AYNCOF202411)共同资助 （222300420468）
