NO2_2013.Rd
This dataset contains smoothed NO2 data from March to September 2013
NO2_2013
An array of 4 x 179 x 360 dimensions.
Each NO2_2013[t, , ]
contains NO2 data for a given month with t=1
corresponding to March and t=7
corresponding to September
Each NO2_2013[ ,x, y]
contains NO2 concentration for a given position in the world map.