Abstract:Aerosol column single scattering albedos over the Yangtze Delta region were analyzed to study monthly,seasonal,and yearly variations.Daily Ozone Monitoring Instrument (OMI) satellite data for the period between January 1,2006 and December 31,2017 was used for this study.The single scattering albedo was measured for the wavelength of 483.5 nanometers.The area-averaged time series albedo map revealed that the albedo is generally higher over the ocean than inland.The daily aerosol column single scattering albedo is range from 0.881 to 0.971,with a mean value of 0.939±0.024.The maximum distribution probability lies in the range of 0.965-0.970 with a probability of 25%.The annual mean aerosol column single scattering albedos are in the range of 0.938-0.940,with narrow variations.The monthly average single scattering albedos vary from the lowest value of 0.915 during February to the highest of 0.968 during June,July,and August.From a seasonal perspective,single scattering albedo is lowest in winter (0.919±0.001),moderate in spring (0.929±0.002) and fall (0.941±0.003),and maximum in summer (0.968±0.001).