北京两场大风天气差异的统计和对比分析  

Statistical and Comparative Analysis of the Differences in Gale Weather at Two Airports in Beijing

作　　者：韩佳媛 张曦 王遥 窦利军 李嘉睿 HAN Jiayuan;ZHANG Xi;WANG Yao;DOU Lijun;LI Jiarui(North China Air Traffic Management Bureau CAAC,Beijing 102600,China;National Meteorological Centre,Beijing 100081,China)

机构地区：[1]中国民用航空华北地区空中交通管理局,北京102600 [2]国家气象中心,北京100081

出　　处：《民航学报》2024年第4期101-104,159,共5页Journal of Civil Aviation

摘　　要：统计和分析2019年9月~2023年5月之间大兴机场和首都机场的大风天气特征,根据冷空气的不同路径分析和研究两场产生大风差异的成因。结果表明:1)近4年首都机场大风总日数多于大兴机场,两场的冬季大风日数最多,秋季大风日数最少,秋、冬季首都机场大风日数多于大兴机场,而春季反之。2)两场在风向上的差异较风速来看更加显著。首都机场的大风以偏西或西北大风为主,大兴机场以偏北大风为主。3)在偏西路径情况下,无论有无冷平流,首都机场风力大部分情况下大于大兴机场。4)西北路径冷空气入侵的形势更有利于大兴机场出现大风天气,而首都机场大风天气的出现时间取决于冷空气入侵是白天或是夜间。5)偏北或东北路径冷空气出现时,大部分情况为大兴机场风力大于首都机场。The characteristics of gale weather at Daxing Airport and Capital Airport during September 2019 to May 2023 are statistically analyzed,and the causes of gale differences between the two airports are analyzed and studied according to different cold air paths.The results show that:1)In the past four years,the total number of gale days at Capital Airport is higher than that at Daxing Airport,with the highest number of gale days in winter and the lowest number in autumn for the two airports.Capital Airport has more gale days in autumn and winter than Daxing Airport,while the opposite is true in spring.2)The difference in wind direction is more significant than that in wind speed.The gale at Capital Airport is mainly westerly or northwest wind,and the gale at Daxing Airport is mainly northerly wind.3)In the case of westward path,whether there is cold advection or not,the wind force at Capital Airport is greater than that at Daxing Airport in most cases.4)The situation of cold air invasion in the northwest path is more conducive to gale weather at Daxing Airport,and the occurrence time of gale weather at Capital Airport depends on whether the cold air invasion occurs during the daytime or at night.5)When cold air appears in the north or northeast path,the wind force at Daxing Airport is greater than that at Capital Airport in most cases.

关 键 词：北京两场 特征统计 大风差异 冷空气路径 

分 类 号：V321.225[航空宇航科学与技术—人机与环境工程]