2013—2020年南宁机场大雾期间低能见度与低跑道视程特征分析  

作　　者：肖称根 梁宸 谢忠妙 宛涛 

机构地区：[1]中国民用航空中南地区空中交通管理局广西分局,南宁530048

出　　处：《科技创新与应用》2023年第14期94-97,共4页Technology Innovation and Application

摘　　要：利用南宁机场2013—2022年逐时地面观测数据,对南宁机场8年来大雾期间主导能见度低于800 m(低能见度)和RVR低于550 m(低RVR)出现时次进行统计分析。结果表明,低能见度与低RVR出现时次8年来呈微弱的上升趋势,低能见度出现时次年际变化更加强烈;3—4月是低能见度与低RVR出现最频繁的时段,其中3月份是两者出现时次共同的峰值,5—6月份南宁机场8年来未出现过低能见度与低RVR;低能见度与低RVR时次多集中出现在21—1时之间,两者均在23时达到各自的峰值,4—12时,出现低能见度与低RVR的概率极低;700~800 m和400~500 m是低能见度出现的2个高值区间,350~400 m和400~450 m是低RVR出现的2个高值区间;对于平流雾,随低能见度等级的上升,对应的RVR取值范围跨度越大,而对于辐射雾,当主导能见度大于等于150 m时,各级低能见度对应的RVR取值范围跨度均较大,在各级低能见度下,均存在RVR大于等于2000 m的情况。Based on the hourly ground observation data of Nanning Wuxu International Airport(Nanning Airport for short)from 2013 to 2022,this paper makes a statistical analysis on the occurrence times of dominant visibility less than 800 m(low visibility)and RVR lower than 550 m(low RVR)during the period of heavy fog in Nanning Airport in the past 8 years.The results show that low visibility and low RVR show a weak upward trend in the past 8 years,and the interannual variation of low visibility is more intense.Low visibility and low RVR occur most frequently from March to April,and March is the common peak of the two.From May to June,Nanning Airport has not seen low visibility and low RVR.Low visibility and low RVR in the past eight years,which mainly occurred between 21:00 and 01:00,both reaching their respective peaks at 23:00,and from 04:00 to 12:00,with the probability of low visibility and low RVR.700~800 m and 400~500 m are two high value ranges for low visibility,and 350~400 m and 400~450 m are two high value ranges for low RVR.For advection fog,with the rise of low visibility grade,the range of RVR values increases,while for radiation fog,when the dominant visibility is greater than or equal to 150 m,the range of RVR values corresponding to all levels of low visibility is larger,and the RVR is greater than,or equal to,2000 meters under all levels of low visibility.

关 键 词：南宁机场 低能见度 低RVR 统计分析 RVR取值范围 

分 类 号：V321.2[航空宇航科学与技术—人机与环境工程]