摘要
本文利用FNL 0.25 × 0.25再分析数据、机场跑道自动观测(AWOS)资料和常规观测资料对乌鲁木齐机场2023年4月7~8日的一次高影响东南大风进行分析,结果表明,此次东南大风主要由锋前减压引起,地面呈现“东高西低”“南高北低”的气压场形势。通过对跑道风切变指数进行分析,风切变指数超过阈值的时段与飞行影响较大的时段有较好的对应关系。
In this paper, FNL 0.25 × 0.25 reanalysis data, airport runway automatic observation (AWOS) data and conventional observation data are used to analyze a high-impact southeast gale at Urumqi Air-port on April 7~8, 2023. The results show that the southeast gale is mainly caused by pre-front pressure reduction. The ground presents a pressure field situation of “high in the east and low in the west” and “high in the south and low in the north”. Based on the analysis of the runway wind shear index, the time period when the wind shear index exceeds the threshold has a good correspondence with the time period when the flight influence is high.
出处
《气候变化研究快报》
2024年第1期185-191,共7页
Climate Change Research Letters
