乌鲁木齐机场一次东南大风天气下风场特征分析

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Abstract The article analyzes a southeast gale weather process from April 30,2022 to May 2,2022,using observation data from the airport automatic weather observation system,laser wind radar data,and ERA5 reanalysis data.A three-dimensional wind field structure is constructed using existing meteorological data to study the spatiotemporal variation laws and structural characteristics of the wind field.The results show that the southeast gale weather this time is a typical situation of early return type and later front pressure reduction,with strong wind intensity and long duration.Runway R07 and R25 have small changes in wind direction at both ends,large changes in wind speed,and uneven changes in the horizontal wind field.The wind direction in the vertical direction is consistent,the wind speed changes quickly,and the thickness of the strong wind layer and strong crosswind layer is large.At present,existing wind field data can be used to construct a low altitude three-dimensional wind field change model for airports,which can monitor the real-time changes in the airport runway and its airspace wind field,and issue warnings for dangerous weather such as large wind field changes,excessive wind speed,and wind shear,which is of great significance for ensuring flight safety.It is hoped that the research results can improve the ability to forecast and warn of gale weather at airports.

Key words： southeast gale circulation situation horizontal wind field vertical wind field

Received: 19 October 2023

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Cite this article:

Ding Xu. Analysis of wind field characteristics in a southeast gale weather at Urumqi Airport[J]. Meteorological Hydrological and Marine Instrument, 2024, 41(5): 45-49.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2024/V41/I5/45

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