• Journal of Infrared and Millimeter Waves
  • Vol. 39, Issue 4, 462 (2020)
Qi FAN1, Jia-Feng ZHENG2、*, Ding-Fu ZHOU1, Ke-Yun ZHU2, Jie ZHANG2, Wen-Hao TONG1, and Xiong LUO1
Author Affiliations
  • 1Chengdu Southwest Institute of Technical Physics, Chengdu60225, China
  • 2College of Atmospheric Science, Chengdu University of Information Technology, Plateau Atmosphere and Environment Key Laboratory of Sichuan Province, Chengdu6105, China
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    DOI: 10.11972/j.issn.1001-9014.2020.04.011 Cite this Article
    Qi FAN, Jia-Feng ZHENG, Ding-Fu ZHOU, Ke-Yun ZHU, Jie ZHANG, Wen-Hao TONG, Xiong LUO. Research on airport low-level wind shear identification algorithm based on laser wind radar[J]. Journal of Infrared and Millimeter Waves, 2020, 39(4): 462 Copy Citation Text show less
    Installation position of wind lidar (a) Kunming Changshui International Airport, (b) Xining Caojiabao International Airport
    Fig. 1. Installation position of wind lidar (a) Kunming Changshui International Airport, (b) Xining Caojiabao International Airport
    Diagram of airfield traffic pattern
    Fig. 2. Diagram of airfield traffic pattern
    Low-altitude wind shear product display interface (a) contains the original wind field, (b) does not contain the original wind field
    Fig. 3. Low-altitude wind shear product display interface (a) contains the original wind field, (b) does not contain the original wind field
    Low-level wind shear at Changshui International Airport on February 17, 2016, elevation angle 6° (a) recognition results of the algorithm in this paper, (b) recognition results of the Some foreign lidar
    Fig. 4. Low-level wind shear at Changshui International Airport on February 17, 2016, elevation angle 6° (a) recognition results of the algorithm in this paper, (b) recognition results of the Some foreign lidar
    Low-level wind shear at Caojiabao international Airport on April 26, 2018, elevation angle 6° (a) low-level wind shear identification product, (b) wind vector product
    Fig. 5. Low-level wind shear at Caojiabao international Airport on April 26, 2018, elevation angle 6° (a) low-level wind shear identification product, (b) wind vector product
    Vertical wind product drawing of wind profile radar
    Fig. 6. Vertical wind product drawing of wind profile radar
    参数FC-III激光测风雷达
    重量60 kg
    波长1.55 µm
    扫描模式PPI、 RHI、DBS、下滑道
    俯仰角0°~180°
    方位角0°~360°
    最大探测距离≥10 km
    最小探测距离≤45 m
    距离分辨率30 m/50 m/75 m/100 m可选
    时间分辨率15 s~2 min可调
    风向误差≤8°(均方根误差)
    风速误差≤0.5 m/s(均方根误差)
    Table 1. FC-Ⅲ型激光测风雷达主要性能指标
    数据类型窗口大小区间数区间间隔剔除阈值补缺阈值
    径向速度MNPdK1K2
    3315435
    Table 2. “K-邻域频数法”在激光雷达速度场中的最优参数
    等级风切变强度(1/s)
    轻度<0.067
    中度0.068~0.138
    强烈0.139~0.206
    严重>0.206
    Table 3. 低空风切变强度标准

    天气

    实况

    时间

    风切变

    强度

    发生

    位置

    国外某雷达

    算法

    本文

    算法

    本文算法告警

    持续时间/min

    备注
    2/03 14:30轻度22R命中命中3
    2/03 18:31不明04L漏报命中5
    2/14 22:28轻度04L一边命中命中7
    2/14 22:52中度04L命中命中3
    2/17 12:50强度22R五边命中命中8
    2/17 17:14轻度21R五边命中漏报
    2/17 17:39轻度21R五边漏报命中5
    2/17 17:52轻度21R五边漏报命中6
    3/12 12:41中度04L命中命中9
    3/15 10:20中度22R五边命中命中10
    3/15 12:09中度21R五边命中漏报
    3/16 9:53中度21R命中命中3
    3/16 16:24轻度21R五边漏报命中4
    多云3/14 17:12不明03L一边命中命中3
    多云3/22 13:44中度21R五边命中命中5
    多云4/21 16:10中度03L一边命中命中6
    4/15 13:26轻度21R五边命中命中3
    2/28 17:47中度21R五边漏报漏报高饱和度水汽造成激光衰减,雷达测程覆盖不到风切变发生区域
    2/17 20:51轻度03L一边漏报漏报
    2/17 22:03轻度04L一边漏报漏报
    2/17 22:07不明03L一边漏报漏报
    阵雨2/28 18:25轻度04L一边漏报漏报
    阵雨2/28 18:34中度04L一边漏报漏报
    阵雨2/29 14:44不明21R漏报漏报
    阵雨4/02 17:34中度22R五边漏报漏报
    阵雨4/03 19:40中度22R五边漏报漏报
    阵雨4/17 15:34不明04L一边漏报漏报
    阵雨4/19 13:53轻度21R五边漏报漏报
    小阵雨2/28 18:16不明04L命中命中
    小阵雨3/21 13:02不明22R五边命中命中
    小阵雨4/16 21:55不明22R命中命中
    Table 4. 昆明长水机场低空风切变信息统计
    天气实况日期时间风切变位置强度本文算法

    算法告警

    持续时间/min

    03/01 19:0529R 一边未知命中4
    多云02/19 20:3011L 五边轻度命中7
    多云04/26 13:2811L五边未知命中14
    小阵雨06/10 15:3629R一边未知命中
    扬沙04/05 15:1511L五边未知

    雷达探测范围

    覆盖不到无法判断

    Table 5. 西宁曹家堡机场低空风切变信息统计表
    Qi FAN, Jia-Feng ZHENG, Ding-Fu ZHOU, Ke-Yun ZHU, Jie ZHANG, Wen-Hao TONG, Xiong LUO. Research on airport low-level wind shear identification algorithm based on laser wind radar[J]. Journal of Infrared and Millimeter Waves, 2020, 39(4): 462
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