引言影响大连机场航空飞行的复杂天气主要包括低云、低能见度、强降水、大风、雷暴和冰雹等强对流天气。当机场处在一定的天气形势和气象条件下时,这些复杂天气会在同一天甚至同一时段内同时出现,形成特殊的复杂天气,严重威胁飞机正常安全起降,影响航班运营正常。降水是指雨、雪、雹等从云中 INTRODUCTION The complex weather affecting Dalian Airport flights mainly includes strong convective weather such as low clouds, low visibility, heavy rainfall, strong winds, thunderstorms and hail. When the airport is under certain weather conditions and meteorological conditions, these complex weather will occur at the same time or even within the same period at the same time, forming a special complex weather. This will seriously threaten the normal operation of the aircraft and affect the normal operation of the flight. Precipitation means rain, snow, hail, etc. from the cloud