Vincenzo update (aerosol asset names)
Vincenzo update (aerosol asset names)

 the atmospheric.py script gives an error when trying to extract Aerosol data from 'MODIS/MOD08_M3_051' GEE collection. This version of level 3 products from MODIS Terra, I suppose, is no longer present in GEE. 
I changed it to the new version 'MODIS/006/MOD08_M3' and additionally, I changed the band name from 'Corrected_Optical_Depth_Land_Mean_Mean_550' to  'Aerosol_Optical_Depth_Land_Mean_Mean_550' which is the new band name in version 6. 
samsammurphy/ee-atmcorr-timeseries