Abstract:Meteorological factors change dramatically and contain a lot of water vapor and particulate matter, causing the propagation path of satellite signal to be prone to change, further leading to changes of tropospheric delay. Therefore, this paper focuses on the correlation between meteorological factors and haze. The atmospheric pollutant concentration data and tropospheric delay data for 62d (doy 153-214) in 2016 in Shanghai are studied. The study finds that concentrations of each pollutant in the atmosphere shows a similar trend, and the tropospheric delay values increase with increasing PM2.5 content. At the same time, the content of PM2.5 in Shanghai is positively correlated with air pressure, air temperature and relative humidity, and is negatively correlated with wind velocity and precipitation.