科技创新与应用2025，Vol.15Issue(17)：76-82,7.DOI:10.19981/j.CN23-1581/G3.2025.17.016
北京大兴机场2020-2024年初雷特征分析
董秋实 1王萱 1王淼 1王遥 1靳大伟2
作者信息
- 1. 中国民用航空华北地区空中交通管理局,北京 102600
- 2. 首都机场集团有限公司北京大兴国际机场,北京 102600
- 折叠
摘要
Abstract
This paper uses ECMWF ERA 50.25°×0.25° reanalysis data and Beijing Daxing Airport meteorological observation data to analyze five initial lightning events that occurred at Beijing Daxing Airport from 2020 to 2024.The results show that most of the first thunder appears in April,and most of it appears from afternoon to evening.The initial lightning lasts for 1 to 2 hours,and the intensity is generally weak,with less precipitation accompanying it.The main weather systems affecting the initial thunder are cold vortex,high-altitude trough and short-wave trough behind the cold vortex.The stratification generally shows the stratification characteristics of"dry near the ground,wet in the middle and lower levels,and dry in the upper levels".The vertical structure of vorticity and divergence was manifested as"low-level positive vorticity coupled with negative divergence,and high-level negative vorticity accompanied by positive divergence".The K index,SI index,and the temperature difference(ΔT85)between 850 hPa and 500 hPa have proven to be good indicators for predicting first-thunderstorms.关键词
初雷/环境参数/潜势预报/ERA5再分析资料/北京大兴机场Key words
primary lightning/environmental parameters/potential prediction/ERA5 reanalysis data/Beijing Daxing Airport分类
航空航天引用本文复制引用
董秋实,王萱,王淼,王遥,靳大伟..北京大兴机场2020-2024年初雷特征分析[J].科技创新与应用,2025,15(17):76-82,7.
