NO2_2011.Rd
This dataset contains smoothed NO2 data from March to September 2011
NO2_2011
An array of 4 x 179 x 360 dimensions.
Each NO2_2011[t, , ]
contains NO2 data for a given month with t=1
corresponding to March and t=7
corresponding to September
Each NO2_2011[ ,x, y]
contains NO2 concentration for a given position in the world map.