Specifically, the satellite will measure the absorption and scattering of solar radiation by sulfur dioxide molecules in the atmosphere, and then carry out inverse calculation based on these data to obtain the concentration and distribution of sulfur dioxide. The model simulation rule is to calculate the transmission process and chemical reaction of sulfur dioxide in the atmosphere through numerical models, and calculate the concentration and distribution of sulfur dioxide through simulation calculation of these processes. This method needs to input the physical and chemical parameters of the atmosphere, such as temperature, humidity, wind speed, air pressure, and the emission source and amount of sulfur dioxide, and get the concentration and distribution of sulfur dioxide through simulation calculation.
Satellite inversion method and model simulation method are commonly used to determine sulfur dioxide at present, which have very important application value.