拉萨贡嘎机场一次低空风切变天气过程分析  

Analysis of a Low-level Wind Shear Weather Process at Lhasa Gongga Airport

作　　者：丁魅理 拉巴卓嘎 旦增卓嘎 洛桑扎西 Ding Meili;Laba Zhuoga;Danzeng Zhuoga;Luosang Zhaxi(Chongqing Air Traffic Management Sub-bureau of CAAC,Chongqing,China;Tibet Air Traffic Management Center of CAAC,Lhasa,China)

机构地区：[1]民航重庆空管分局,重庆 [2]民航西藏空管中心,西藏拉萨

出　　处：《科学技术创新》2024年第23期5-8,共4页Scientific and Technological Innovation

摘　　要：本文利用VAISALA自动观测站、多普勒气象雷达、EC数值预报产品等气象资料对拉萨贡嘎机场2023年6月的一次典型低空风切变过程进行了分析,以求提高高高原机场对风切变天气的监测与预警能力。结果表明,EC数值预报产品能较好地预报出高空风动量下传及本场出现的西南-偏南大风;多普勒气象雷达的0.5°仰角径向速度产品能提前4 min探测到本场西侧附近可能出现低空风切变的区域,该研究对今后类似天气预报有一定指导意义。In this paper,a typical low-altitude wind shear process of Gongga Airport in Lhasa in June 2023 was analyzed by using the meteorological data of VAISALA automatic observation station,Doppler weather radar and EC numerical forecasting products,in order to improve the monitoring and early warning ability of wind shear weather at high plateau airport.The results show that the EC numerical forecast product can well predict the downward transmission of upper-level wind momentum and the south-southwest gale in this field.The 0.5°elevation radial velocity product of Doppler weather radar can detect the area of low level wind shear near the west side of the field 4 min in advance,which has certain guiding significance for similar weather forecast in the future.

关 键 词：低空风切变 高高原机场 动量下传 径向速度 

分 类 号：V321.2[航空宇航科学与技术—人机与环境工程]