Abstract：The article uses fixed boundary layer wind profile radar horizontal wind field data,ground meteorological observation temperature,dew point temperature,10 minute average visibility,and sounding observation data from a radiation fog weather process in Weining to analyze the correspondence between the spatiotemporal distribution of wind fields and the generation and dissipation of radiation fog.The results indicate that there is a good correlation between the horizontal wind field changes below the friction layer and the generation and dissipation of radiation fog when environmental conditions such as temperature,humidity,and sky conditions are met.When the wind above the boundary layer weakens to 8-12 m·s-1 with good consistency,and the wind direction consistency in the near surface layer deteriorates while the wind speed remains unchanged,corresponding to the development of radiation fog.When the near surface wind direction becomes consistent again,it corresponds to the early stage of maturity.The wind speed below the friction layer continues to weaken to 1-4 m·s-1,and there is a wind direction transition from the boundary layer to the friction layer.When the near surface wind direction is consistent,it corresponds to the late stage of maturity.The consistency of wind direction below the boundary layer is poor,and when calm winds are maintained,the corresponding radiation fog dissipates.
2024, Vol. 41 
