论文部分内容阅读
低能见度是我国南方影响机场春季飞行安全的一个重要气象要素,因而,能不能及时准确地提供低能见度的生成、变化及消失的预报,已成为保证飞行安全的一个较为重要的研究课题。本文根据78年～82年五年2、3、4三个月的气象资料,对白云机场的低能见度日变化及生消做了具体的分析,找出了变化的规律。同时利用天气型、低空天气系统的分布特征,以及风场、湿度场的变化,找出了具体预报白云机场低能见度产生、变化及消失的依据,为预报白云机场低能见度首创了一种新的方法。也可作为我国南方机场春季飞行的参考。
Low visibility is an important meteorological element that affects the flight safety of the airport in the south of our country. Therefore, whether to provide timely, accurate forecast of the generation, change and disappearance of low visibility has become a more important research topic to ensure flight safety. Based on the meteorological data of two, three, four and three months from 1978 to 1982, this paper makes a detailed analysis of the diurnal variation and ebb of low visibility of Baiyun Airport, and finds the law of change. At the same time, based on the distribution characteristics of weather type and low-altitude weather system, and the changes of wind field and humidity field, the basis for forecasting the occurrence, variation and disappearance of low visibility of Baiyun Airport was found out, and a new method. It can also serve as a reference for the spring flight of southern airport in our country.