空气质量指数在贵阳机场辐射雾预报中的应用
Application of Air Quality Index in Radiation Fog Forecast at Guiyang Airport

本文利用贵阳机场气候志、自动观测站资料，分析2010~2022年贵阳机场辐射雾天气统计学特征，分析发现近13年来贵阳机场辐射雾年平均发生次数约11次，但辐射雾预报准确性仅仅30%左右。然后利用中国空气质量数据分析贵阳机场发生辐射雾过程的空气质量指数AQI、PM_2.5、PM₁₀的具体阈值。最后利用常规观测资料结合中国空气质量数据对2022年1月19日辐射雾空报案例进行分析，发现造成“1？19”辐射雾空报的主要原因是凝结核浓度不足。
This article uses the climate records and automatic observation station data of Guiyang Airport to analyze the statistical characteristics of radiation fog weather at Guiyang Airport from 2010 to 2022. It is found that the average annual occurrence of radiation fog at Guiyang Airport in the past 13 years is about 11 times, and the accuracy of radiation fog prediction is only about 30%. Then analyze the specific thresholds of air quality index AQI, PM_2.5 and PM₁₀ when radiation fog occurs at Guiyang Airport using Chinese air quality data. Finally, using conventional observation data combined with Chinese air quality data, an analysis was conducted on the case of empty radiation fog forecast on January 19, 2022. It was found that the main reason for the empty radiation fog forecast on January 19 was insufficient condensation nucleus concentration.