大气能见度是衡量大气透明度的重要指标，常被用于表征大气环境质量，与人们的生活和健康息息相关。近年来，受空气污染和环境恶化的影响，绵阳地区大气能见度显著降低，冬季低能见度天气频繁出现，给居民环境和道路交通等造成了严重危害。因此，本文基于绵阳地区2008~2019年的气象资料和2014~2016年的空气污染物资料，运用科学的统计方法，分析绵阳地区大气能见度的变化规律；基于大气能见度与气象因子和污染物因子之间的相关性，建立合理的数学模型，识别大气能见度影响因子。
Atmospheric visibility is an important indicator to measure atmospheric transparence. It is often used to characterize the quality of atmospheric environment, which is closely related to people’s life and health. In recent years, the atmospheric visibility in Mianyang city has decreased significantly due to the air pollution and environmental deterioration. The frequent occurrences of low- visibility weather in winter have caused serious impacts on the environment and road traffic. Therefore, in this study, the variation characteristics of atmospheric visibility in Mianyang city were analyzed by using scientific statistical methods with the meteorological data from 2008 to 2019 and the air pollutant data from 2014 to 2016. Based on the correlations among atmospheric visibility, meteorological and pollutant factors, a reasonable mathematical model was established to identify the influencing factors of atmospheric visibility.
