摘要
基于2006—2015年西宁曹家堡机场的雷暴观测资料,从雷暴日(次)数、持续时间、初现方位、伴随天气现象和雷暴初终日特征方面对该高原机场的雷暴特征进行统计分析。结果表明,曹家堡机场年平均雷暴日数为34.7 d,主要发生在5—9月,夏季是该机场雷暴的集中爆发期;雷暴具有明显的日变化特征,集中发生在午后至夜间(16—22时),持续时间在2 h以内;雷暴初现方位以偏西、偏北为主,偏西、偏北的对流云团发展是该机场飞行保障的关注重点;雷暴伴随天气现象以干雷暴和小阵雨为主,而少数伴有中、大阵雨的强雷暴主要发生在夏季;雷暴初终日平均间隔为173.2 d,并且初雷能充分体现该机场的典型雷暴特征。
In this paper,based on the observation data of thunderstorm occurred at Xining Caojiabao airport from 2006 to 2015,the characteristics of thunderstorm were statistically analyzed in terms of the number of thunderstorm days(times),duration,initial direction,accompanied weather phenomena and initial(ending)dates of thunderstorms.The results indicated that the average annual number of thunderstorm days was 34.7 d,which mainly occurred from May to September,with the concentrated outbreak period in summer.The thunderstorms presented obvious diurnal variation,concentrated from afternoon to night(16:00-22:00),and the duration was mainly within 2 hours.The initial directions of the thunderstorms were primarily in the west and north,indicating that the airport should focus on the development of convective cloud clusters in these directions.The weather phenomena accompanied by thunderstorms was mainly dry thunderstorm and light shower,while a few severe thunderstorms with moderate and heavy shower mainly occurred in summer.The average interval between the initial and ending dates of thunderstorms was 173.2 d,and the initial thunderstorms fully reflected the typical characteristics of thunderstorm weather at the airport.
作者
马申佳
吴丹
任景轩
吴春刚
何宏让
Ma Shenjia;Wu Dan;Ren Jingxuan;Wu Chungang;He Hongrang(PLA Troop 78127,Chengdu 610036,China;PLA Troop 31631,Huizhou 516200,China;College of Meteorology and Oceanography,National University of Defense Technology,Nanjing 211101,China)
出处
《气象与减灾研究》
2020年第3期180-186,共7页
Meteorology and Disaster Reduction Research
基金
国家自然科学基金项目(编号:41875060).
关键词
雷暴天气
特征分析
曹家堡机场
thunderstorm
weather characteristics
Caojiabao airport
