ZHANG Xu,HUANG Xin-yue,LAN Zi-zhou,et al.Analysis on the Low Visibility Operation for Shuangliu Airportbased on the Evolution Rule of Extreme Weather Events[J].Journal of Chengdu University of Information Technology,2018,(04):470-476.[doi:10.16836/j.cnki.jcuit.2018.04.018]
从极端天气事件演变规律看双流机场低能见度运行安全
- Title:
- Analysis on the Low Visibility Operation for Shuangliu Airportbased on the Evolution Rule of Extreme Weather Events
- 文章编号:
- 2096-1618(2018)04-0470-07
- Keywords:
- meteorology; climate change and risk management; extreme weather event; significance testing; low visibilty; Chengdu Shuangliu airport; radiation fog; weather forecast
- 分类号:
- P457.7
- 文献标志码:
- A
- 摘要:
- 为了研究极端天气事件条件下可能形成低能见度天气以及对航班安全飞行的影响,采用回归分析法和Mann-Kendall突变分析法,在成都双流机场运行的气象环境数据标本中,将机场1951-2003年这50余年对飞行有影响的降水和大风天气进行极端天气事件指标的百分位阈值确定,得到了以下结论:成都双流机场的极端降水事件在1996年后呈下降趋势; 极端大风事件在近50年呈上升趋势; 秋冬两季易形成大雾这类影响飞行的低能见度天气; 大雾造成的低能见度天气一般为辐射雾,随着温度的快速上升,消散的速度也很快; 大雾天气对航班的安全飞行影响很大,这需要航空公司、空管部门和机场部门通力合作,这样才能为安全飞行、航班快速恢复和避免旅客群体事件提供有力支持。
- Abstract:
- Through the regression analysis method and Mann-Kendall sudden-change analysis method, this thesis determines the percentile threshold of extreme-weather-event index about the precipitation and gale events which had bad influence on flight based on the last 5 decades’records from the samples of meteorological data of Chengdu Shuangliu airport. And then the formation possibility of low visibilty weather and the influence on the flight safety is analyzed, finally several points are concluded as following: Firstly, the extreme precipitation events of Chengdu Shuangliu airport have being a downtrend since 1996. Secondly, the extreme gale events of Chengdu Shuangliu airport have been a uptrend over last 5 decades. Thirdly, the fogy day happens in Winter-Autumn season easily and it leads to the low visibilty weather. Fourthly, the common type of fogy is radiation fog, which results in fast warming up and fast fog lifts. Fifthly, the fogy weather has a bad influence on the flight operation, which needs the coopearation among airlines, ATC administrations and airport officals to make the flight more safe, recover flight faster and keep away from the mass disturbance by the passengers.
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备注/Memo
收稿日期:2014-06-29基金项目:天津市教育科学“十三五”规划资助项目(HEYP5025)