铜仁地区遥感反演与大气污染物VOCs耦合分析

基于铜仁地区大气污染物中的挥发性有机化合物(VOCs)网格化结果,结合Landsat8遥感反演温度和植被覆盖度,分析网格化后的VOCs空间分布特征和温度、植被覆盖度的耦合关系.结果表明:VOCs分布特征与温度、植被覆盖度分布特征类似,具有一定的耦合关系; VOCs排放量分布和温度分布以城区为中心点向四周逐渐降低,植被覆盖度分布以城区为中心向四周逐渐升高;温度与VOCs呈正相关且相关系数为0.419,城区和郊区分布非常明显;植被覆盖度与VOCs呈负相关且相关系数为-0.608.

Coupling Analysis of Remote Sensing Inversion and VOCs of Atmospheric Pollutants in Tongren Area

Based on the gridding results of volatile organic compounds (VOCs) in atmospheric pollutants in Tongren area, combined with Landsat8 remote sensing inversion temperature and vegetation coverage, the spatial distribution characteristics of VOCs after gridding and the coupling relationship between temperature and vegetation coverage have been analyzed. The results show that the distribution characteristics of VOCs are similar to those of temperature and vegetation coverage, and have a certain coupling relationship. The distribution of VOCs and the distribution of temperature distribution in the urban area gradually decrease toward the surrounding area, and the distribution of vegetation coverage increases gradually around the urban area. The temperature is positively correlated with VOCs and the correlation coefficient was 0.419. The distribution of urban and suburban areas is very obvious; the vegetation coverage is negatively correlated with VOCs and the correlation coefficient is -0.608.