摘要
文章利用2005—2010年机场Vaisala瞬时风速风向数据,运用气候统计学方法及天气学原理理论,分析了乌海机场正侧风的变化特征,及对飞机飞行的影响。结果表明:(1)乌海机场正侧风日数的逐年变化相对较稳定,总体呈现增加趋势;累年正侧风日数和持续时间都以春季最多,主要集中在4、5月,冬季最少;具有明显的日变化,主要出现在白天,尤其以11—18时为最多。(2)机场正侧风多以偏西风为主,以270°风向段出现的频率最高,90°风向段出现频率最小。(3)正侧风对飞机飞行的影响比较严重,甚至直接取消航班。(4)可将正侧风天气形势划分为低压型、冷锋型、南高北低型、东高西低型、高压底部型五大类型。
Used the airport Vaisala instantaneous wind speed and direction data,between 2005 and 2010, statistical methods and the use of weather climate principles theory, the variation Wuhai Airport on the positive side of the wind, and its effect on aircraft flying. The results showed that：（1） Wuhai Airport positive yearly change crosswind number of days is relatively stable, showing an overall increasing trend; Leinian positive side wind for several days and durations are in the spring, and mostly concentrated in April and May, the least in winter; significant daily changes occurred mainly during the day, especially when up to 11-18.（2） The airport is mostly westerly crosswind main frequency up to 270 wind segment appears, the minimum frequency of 90 wind segment.（3） the positive impact of aircraft crosswind more serious, when the wind is blowing sand and dust storms also caused flight can not take off and landing, or outright cancellation of flights will alternate very serious.（4） may be a positive side wind weather situation is divided into low pressure type cold front type, type of South High North, East West High low-profile, high-pressure type bottom five types, five types of the positive side of the airport has wind in Wuhai It happens, but Wuhai spring cold front type positive crosswind most common.
作者
杨红子
王贵明
姚建丽
孙建睿
Yang Hongzi Wang Guiming Yao Jianli Sun Jianrui(Wuhai Meteorological Bureau, Inner Mongolia Wuhai 01600)
出处
《内蒙古气象》
2016年第3期43-45,共3页
Meteorology Journal of Inner Mongolia
关键词
正侧风
变化特征
影响飞行
分型
positive side wind
variation
affect flight
typing
