GASP

The GASP product is a retrieval of the Aerosol Optical Depth (AOD) made from the current GOES-East and GOES-Westvisible imagery. Satellite measured aerosol optical depth (AOD) has been shown to be a good proxy for pollution monitoring especially when long-range transport is involved. This product is available at a 30-minute interval and 4 km X 4 km spatial resolution during the sunlit portion of the day. Radiative Transfer calculations assume a continental aerosol model and Lambertian surface. Comparisons of GOES AOD with AERONET AOD show that GOES data are accurate at the 30% level for AODs greater than 0.1.

Example result / latest result (if near-real time)