VARS_ATTRIBUTES={
    "lon": {"description": "Longitude of observations", "units": "degrees_east"},
    "lat": {"description": "Latitude of observations", "units": "degrees_north"},
    "Aerosol_Optical_Thickness_550_Land_Ocean_Best_Estimate": {"description": "Aerosol_Optical_Thickness_550_Land_Ocean_Best_Estimate values", "units": "unitless", "mapies_variable":"aod550"},
    "nitrogendioxide_tropospheric_column": {"description": "nitrogendioxide_tropospheric_column", "units": "unitless", "mapies_variable":"no2"},
    "title": {"description": "VIIRS data"},
            }