Aerosol input file

The aerosol input file contains information needed to setup aerosol emissions. Aerosol emission value can be given applying two alternative level of detail (lod): 1 or 2. See aerosol module documentation? for further details.

Variables	Type	Explanation / Remarks
aerosol_emission_values ((time),y,x,ncat)	NC_FLOAT	Emission values of aerosol particles. The coordinates vary based on the chosen level of detail. lod=1: Emissions are provided per emission category and yearly as total PM in dimensions aerosol_emission_values(y,x,ncat). They are then scaled by pre-defined rescaling factors emission_time_factors. Default categories are traffic exhaust, road dust, wood combustion, other. lod=2: Emissions are provided per emission category at given points in time and space in dimensions aerosol_emission_values(time,y,x,ncat) and in units # m-2 s-1. Total number emissions are then scaled to size bins by emission_number_fracs.
composition_name (composition_index,max_string_length)	NC_CHAR	List of chemical components of aerosol particles.
emission_category_index (ncat)	NC_BYTE	Category index of the emission quantity in question (e.g. 1 = traffic emissions). lod=1 only.
emission_category_name (ncat,max_string_length)	NC_CHAR	Emission categories names (match to emission_category_index of the same index element). lod=1 only.
emission_mass_fracs ((ncat),composition_index)	NC_FLOAT	Mass fractions of chemical components in aerosol emissions.
emission_number_fracs (ncat,Dmid)	NC_FLOAT	Number fractions of each size bin per emission category in aerosol emissions.
emission_time_factors (ncat,(nhoursyear),(nmonthdayhour))	NC_FLOAT	Emission time scaling factors for emission_values (lod=1). Two different time factors are possible: 1) Scaling according to month‑day‑hour classification (emission_time_factors(ncat,nmonthdayhour)), or scaling for each hour of the year (emission_time_factors(ncat,nhoursyear)).