激光技术2025，Vol.49Issue(3)：437-443,7.DOI:10.7510/jgjs.issn.1001-3806.2025.03.018
测风激光雷达在拉萨贡嘎机场转风预报中的应用
Application of wind LiDAR in wind turning forecast at Lhasa Gongga Airport
王慷 1周立 1陆雪蓓 1丁魅理 1其美旺珍1
作者信息
- 1. 中国民用航空西藏自治区管理局 西藏空管中心,拉萨 850050,中国
- 折叠
摘要
Abstract
Lhasa Gonggar Airport is located in the Yarlung Zangbo River Valley.Due to the combined effects of topography and underlying surface,the wind field environment here is complex.In order to verify the wind field detection capability of wind light detection and ranging(LiDAR)on the high plateau and summarize the experience of wind change forecast,FC-Ⅲ wind LiDAR was used.Combined with aircraft air reports and ground observation data,the wind shear monitoring capability and wind change process LiDAR product characteristics were analyzed.The results show that the high temporal and spatial density monitoring capability of wind LiDAR can better capture the wind shear on the approach route within a range of 4000 m;can The conduction of the mid-level outflow ranging from 1000 m to 2000 m and the advancement of the near-ground strong wind area which below 1000 m caused by convective clouds in advance can be tracked by the LiDAR product of the wind change process in the rainy season.The refined wind change time of the runway based on factors such as maximum wind speed and distance were further calculated;during the dry season,the triggering height of southerly component is 1000 m to 1500 m,there are characteristics such as mid-level momentum loss,vertical airflow and divergence mutation after ground wind turning,20 min before turning to the west wind,the westerly component ranging from 1000 m to 2000 m has increased to more than 10 m/s,the middle-level and high-level westerly component are maintained after ground wind turning,and the relationship between the inflow area advancement position and the wind transition node can be statistically analyzed as an accumulation index for refined forecasting.This study has important reference value for broadening the application scenarios of wind LiDAR in high plateaus and improving the level of refined ground wind forecasting.关键词
激光技术/测风激光雷达/高高原机场/转风预报Key words
laser technique/wind light detection and ranging/high plateau airport/wind turning forecasting分类
电子信息工程引用本文复制引用
王慷,周立,陆雪蓓,丁魅理,其美旺珍..测风激光雷达在拉萨贡嘎机场转风预报中的应用[J].激光技术,2025,49(3):437-443,7.
