Top-down NOX Emissions of European Cities Derived from Modelled and Spaceborne Tropospheric NO2 Columns

Willem W Verstraeten1, Klaas Folkert Boersma2, John Douros2, Jason E Williams3, Henk Eskes4 and Andy W Delcloo1, (1)Royal Meteorological Institute, Ukkel, Belgium, (2)Royal Netherlands Meteorological Institute, Space Observations, De Bilt, Netherlands, (3)Royal Netherlands Meteorological Institute, Earth Observations, De Bilt, Netherlands, (4)Royal Netherlands Meteorological Institute, De Bilt, Netherlands