骆岗机场重要云况特征及对航空飞行的影响

The important characteristics of cloud conditions of Luo Gang Airport and its impact on air flight

根据合肥骆岗机场1986年-2010年00时-12时（UTC）的云况资料，采用线性回归、累积距平等方法，分析r近25年来骆岗机场重要云况（包括低云及对流云）的变化特征。结果表明：①骆岗机场的低云高度有显著的逐年上升趋势，低云量也有一定的增加，在冬季低云云量较多，云底较低。②非对流低云出现频率一年中在冬春季节最高，一天中在清晨前后最易出现。③对流云在7月、8月份出现频率最高，一天中在傍晚出现最多，清晨最少。④碎雨云、碎层云、层云出现时高度较低，需要多加关注。⑤重要云况对航空飞行的影响极大，工作中应结合云况的发生演变规律．准确及时的进行观测，保障航班飞行的正常无误。

Based on the 25a （1986-2010） cloud condition data of Luo Gang important cloud conditions changes characteristics are investigated with methods distance. The results indicate that： （1） Low clouds over Luo Gang Airport has a s and low clouds cover also has a certain increase. Low clouds cover more, and clou Airport of linear ~gn db in 00：00 - 12：00 UTC, the regression ificant upward trend year by year, ase is lower in the winter. （2） Low non-convective clouds are most likely to appear in winter and spring during one year, occur in the early morning during one day. （3） The highest frequency of convective clouds appears in July and August during one year, and in the evening and early morning during one day. （4） at low altitudes. （5） Important cloud condition clouds should be accurate and timely More attention should to be paid to Fc,Fs s have great impacts on the condition of and St clouds, which occurs air flight, and observation ot