沙漠与绿洲气象2025，Vol.19Issue(3)：44-50,7.DOI:10.12057/j.issn.1002-0799.2408.12001
多源气象资料的森林火灾监测与机理分析
Monitoring and Mechanism Analysis of Forest Fires Using Multi-source Meteorological Data
摘要
Abstract
A forest fire broke out in Lier Village,Yalongjiang Town,Muli County,Liangshan Prefecture,Sichuan Province at 18:00 on March 31,2019,tragically resulting in the deaths of 31 firefighters.Taking this event as an example,this study discusses the monitoring and mechanisms of forest fires using multi-source meteorological data from atmospheric detection and remote sensing.The weather background,satellite cloud images,ground observations,wind vector potential temperature(V-3θ)plots,vertical methane distribution from satellite remote sensing,and vertical airflow from ERA5 data are analyzed.The results indicate that there were no thunderstorm in the early stage of the fire area;The vertical structure of the atmosphere shows significant thermal instability below the middle layer;The methane vertical profile of AIRS can monitor the Earth's exhaust phenomenon,and the increase in methane column content on March 31 provided conditions for detonation.The hourly ERA5 data shows significant vertical upward and downward airflow before and after the fire,confirmed the connection between the explosion at 18:00 on March 31 and the underground eruption.This study explores the changes in meteorological environment,atmospheric structure,and methane content from the interdisciplinary perspective of atmosphere and geology,revealing the relationship between wildfire explosions and Earth emissions,and providing a basis for scientific decision-making in fire prevention and disaster reduction.关键词
森林大火/大气探测/大气遥感/地下排气/甲烷Key words
forest fire/atmospheric sounding and observing/atmospheric remote sensing/underground exhaust/methane分类
安全科学引用本文复制引用
魏鸣..多源气象资料的森林火灾监测与机理分析[J].沙漠与绿洲气象,2025,19(3):44-50,7.基金项目
国家自然科学基金项目(41675029) （41675029）
