Abstract
Few people use remote sensing data to simultaneously retrieve the seasonal changes in aerosol optical depth (AOD) on land and ocean, as well as its relationship with surface temperature. Aerosols, as one of the indicators of air pollution, directly or indirectly affect people's numerous activities. This article uses Terra satellite MODIS data as the data source and conducts AOD inversion work on the land and ocean areas around Shanghai, China based on IDL, 6S model, and dark pixel method. The results show that for land areas, the higher the surface temperature, the lower the AOD value, with summer being the most significant; On the ocean, the higher the ocean surface temperature, the greater the AOD value. This experiment provides a theoretical basis for the relationship between AOD and temperature, and confirms the possibility of retrieving ocean AOD from MODIS data.
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