The availability of SO2 total columnar data from different sources allows comparing model (MACC) and Satellite (OMI) data by means of the Spatial Correlation function.
As prerequisite, the same measurment unit shall be used for the two commections: MACC data in Kg/m2 can be converted in DU via the unit conversion function. Information from the resulting collection can be found here.
Teen the Area of Insteres shall be selected: a AOI over china has been chosen, whiere both data sources show significant signals. The spatial corelation function has been run on a daily basis between the May 1st and May 15th 2010. The results show a stable bias over the whole series.