华北地区近5年航空器颠簸报告特征分析  

Turbulence Characteristics Analysis of Aircraft Air Reports in North China over the Past Five Years

作　　者：韩佳媛 孙倩 HAN Jiayuan;SUN Qian(North China Air Traffic Management Bureau CAAC,Beijing 102600,China;China Academy of Civil Aviation Science and Technology,Beijing 100028,China)

机构地区：[1]中国民用航空华北地区空中交通管理局,北京102600 [2]中国民航科学技术研究院,北京100028

出　　处：《民航学报》2024年第5期79-83,共5页Journal of Civil Aviation

摘　　要：本文选取了2018~2023年华北地区颠簸报告数据,对华北区域空中颠簸进行统计分析,研究发现:华北地区年度颠簸次数呈波动趋势,2020年最多,2022年最少,颠簸事件在秋、冬、春季节较多,夏季偏少;颠簸事件记录数量与航班量存在一定的正相关,0~6时是报告份数最少的时间段,早晨7~9时和中午12~14时是2个颠簸高峰时段,颠簸强度的日分布同样在8时和13时中度和严重颠簸都是峰值;全华北地区产生颠簸的影响系统主要以急流、高空槽、对流云为主,少量低涡、冷锋和切变线等系统,其中急流是造成飞机颠簸最多的天气系统,并且急流和对流云对颠簸的影响呈季节反相关;颠簸的空间分布上,以华北中南部和西南部航路上出现颠簸最多,主要集中在太原附近、长治附近、魏县附近、衡水附近和石家庄附近,华北西部和北部少量分布;颠簸发生最多的频次是在8~9 km高度范围,其次是9~11 km,8 km以上高度占总数一半,在中低空范围内颠簸发生较多在3~5 km,每个高度区间中度颠簸远多于严重颠簸,中度颠簸的平均占比约75%左右。This article selects the turbulence reports data from 2018 to 2023 in North China and conducts statistical analysis of air turbulence over this region.The study finds that:the annual turbulence frequency in North China shows a fluctuating trend,with the highest in 2020 and the lowest in 2022,there are more turbulence events in autumn,winter and spring,while fewer in summer;there is a certain positive correlation between the number of recorded turbulence events and flight volume,the time period with the least number of reports is O-6 am and the two peak periods of turbulence are 7-9 am and 0-2 pm,the daily distribution of turbulence intensity also shows at 8 am and 1 pm,moderate and severe turbulence events reach the peak;the impact system of turbulence in the entire North China region is mainly composed of jet streams,high-altitude troughs and convective clouds,with a small number of low eddies,cold fronts and shear lines,jet stream is the weather system that causes the most turbulence,and the impact of jet streams and convective clouds on turbulence is seasonally inversely correlated;in terms of spatial distribution,the most turbulences occur on the air routes in the central southern and southwestern parts of North China,mainly concentrated near Taiyuan,Changzhi,Weixian,Hengshui and Shijiazhuang,with a small amount distributed in the western and northern parts of North China;the most frequent occurrence of turbulence is in the altitude range of 8-9 km,followed by 9-11 km,altitude above 8 km accounts for half of the total,in the middle and low altitude range,turbulence occurs more frequently in the range of 3-5 km,the number of moderate turbulences far exceeds that of severe turbulences in each altitude range.The average proportion of moderate turbulence is about 75%.

关 键 词：飞机颠簸 航空器空中报告 时空分布特征 颠簸强度 

分 类 号：V321.225[航空宇航科学与技术—人机与环境工程]