Output files¶

Output files from a model run are written out in either ASCII, or (for most data outputs) in NetCDF format. The different NetCDF files are named after the runlabel1 parameter set in modrun.sh. The model output is written to the same directory as where the runscript where submitted, as described in ch-submitarun.

To check your model run, already prepared model result files can be downloaded using the catalog tool (sec-ModelCode) as follows:

# download the output
catalog.py -R 5.0 --output

Unpacked files are placed in an output directory with model run results for a whole year, and sometimes with a smaller test run for e.g. April.

Table 4 List of model output files¶
Output data files	Short description	Format
`Base_hour.nc`	Gridded hourly values of a	NetCDF
	selection of compounds
`Base_day.nc`	Gridded daily values of a	NetCDF
	selection of compounds
`Base_month.nc`	Gridded monthly values of a	NetCDF
	selection of compounds
`Base_fullrun.nc`	Gridded yearly values of a	NetCDF
	selection of compounds
`sites_YYYY.nc`	Surface daily values of a	NetCDF [1]
	selection of stations and compounds
`sondes_YYYY.nc`	Vertical daily values of a	NetCDF [1]
	selection of stations and compounds
`sites_YYYY.cvs`	ASCII version of `sites_YYYY.nc`	ASCII
`sondes_YYYY.csv`	ASCII version of `sondes_YYYY.nc`	ASCII [2]
Additional files
`RunLog.out`	Summary log of runs, including total emissions	ASCII
	of different air pollutants per country
`Timing.out`	Timing log file	ASCII

Footnotes

Output parameters NetCDF files¶

Parameters to be written out into Base_hour.nc, Base_day.nc, Base_month.nc and Base_year.nc are defined in My_Derived_mod.f90 and Derived_ml.f90. In My_Derived_mod.f90, the use can specify the output species (air concentrations, depositions, column values), units and temporal resolution of the outputs (daily, monthly, yearly).

The name of output parameter provides some information about data. The names start with TYPE of the parameter, namely SURF (surface air concentrations), DDEP (Dry deposition), WDEP (Wet deposition), COLUMN (Vertically integrated parameters), Area (Surface area) etc.

For surface air concentrations, the general name pattern is SURF_UNITS_COMPONENT. Here, UNITS can e.g. be “ug” (\(\mu g/m^3\)), “ugS” (\(\mu g(S)/m^3\)), “ugN” (\(\mu g(N)/m^3\)), or “ppb”. Note that the components are classified either as “SPEC” (species) or “GROUP”. The content of complex GROUP components can be found in CM_ChemGroups_mod.f90.

For column integrated parameters, the names are COLUMN_COMPONENT_kNLAYERS, where NLAYERS is the number of layers from model top included in the integration. The units for column outputs are “ugm2” (\(\mu g/m^2\)), “mcm2” (\(molec/m^2\)) or “e15mcm2” (\(10^{15} molec/m^2\)).

For dry depositions, given per \(1 m^2\) of specified landuse, the names look like DDEP_COMPONENT_m2LANDUSE, where LANDUSE can be either a specific landuse type or a cell average. For wet depositions, the names are WDEP_COMPONENT. The units for dry and wet depositions are \(mg/m^2\), \(mg(S)/m^2\) or \(mg(N)/m^2\).

Surface concentrations, column integrated, wet and dry deposition outputs are defined by the user in config_emep.nml file. Surface concentrations and column integrated outputs are described in OutputConcs_config namelist, Dry and wet deposition outputs are described in OutputDep_config namelist.

VG_COMPONENT_LANDUSE are the dry deposition velocities on various landuse types, typically in \(cm/s\).

Table 5 lists most of output parameters, providing additional explanation to the complex components. For a complete suit of currently selected output parameters, see provided output NetCDF files, or My_Derived_mod.f90 module.

Table 5 List of output parameters¶
Parameter name	Short description	Comments
Surface Concentrations
`SURF_ppb_O3`	O₃ [ppb]
`SURF_ugN_NO`	NO [\(\mu g(N)/m^3\)]	Available also in ppb
`SURF_ugN_NO2`	NO₂ [\(\mu g(N)/m^3\)]	Available also in ppb
`SURF_ugN_HNO3`	HNO₃ [\(\mu g(N)/m^3\)]	Available also in ppb
`SURF_ugN_NH3`	NH₃ [\(\mu g(N)/m^3\)]	Available also in ppb
`SURF_ugS_SO2`	SO₂ [\(\mu g(S)/m^3\)]	Available also in ppb
`SURF_ug_SO4`	SO\(_4^{2-}\) [\(\mu g/m^3\)]
`SURF_ug_NO3_F`	NO\(_3^-\) fine aerosol [\(\mu g/m^3\)]	As ammonium nitrate
`SURF_ug_NO3_C`	NO\(_3^-\) coarse aerosol [\(\mu g/m^3\)]	Associated with sea salt and mineral dust
`SURF_ug_TNO3`	NO\(_3^-\) total [\(\mu g/m^3\)]	Sum of fine and coarse nitrate
`SURF_ug_NH4_F`	NH\(_4^+\) fine aerosol [\(\mu g/m^3\)]	As ammonium sulphate and ammonium nitrate
`SURF_ug_SIA`	SIA [\(\mu g/m^3\)]	Secondary Inorganic Aerosol
`SURF_ug_SIA`	SIA [\(\mu g/m^3\)]	Secondary Inorganic Aerosol
`SURF_ug_ECFINE`	EC fine [\(\mu g/m^3\)]	Elemental carbon
`SURF_ug_ECCOARSE`	EC coarse [\(\mu g/m^3\)]	Elemental carbon
`SURF_ug_PM_OM25`	OM fine [\(\mu g/m^3\)]	Organic Matter fine aerosol
`SURF_ug_PM_OMCOARSE`	OM coarse [\(\mu g/m^3\)]	Organic Matter coarse aerosol
`SURF_ug_SEASALT_F`	Sea salt fine aerosol [\(\mu g/m^3\)]
`SURF_ug_SEASALT_C`	Sea salt coarse aerosol [\(\mu g/m^3\)]
`SURF_ug_SEASALT`	Sea salt [\(\mu g/m^3\)]	Sum of fine and coarse sea salt
`SURF_ug_DUST_ROAD_F`	Road dust fine aerosol [\(\mu g/m^3\)]
`SURF_ug_DUST_ROAD_C`	Road dust coarse aerosol [\(\mu g/m^3\)]
`SURF_ug_DUST_WB_F`	Windblown dust fine [\(\mu g/m^3\)]
`SURF_ug_DUST_WB_C`	Windblown dust coarse [\(\mu g/m^3\)]
`SURF_ug_DUST_SAH_F`	Saharan dust fine [\(\mu g/m^3\)]	From Boundary conditions
`SURF_ug_DUST_SAH_C`	Saharan dust coarse [\(\mu g/m^3\)]	From Boundary conditions
`SURF_ug_DUST_NAT_F`	Natural dust fine [\(\mu g/m^3\)]	Windblown and Saharan
`SURF_ug_DUST_NAT_C`	Natural dust coarse [\(\mu g/m^3\)]	Windblown and Saharan
`SURF_ug_DUST`	Mineral dust [\(\mu g/m^3\)]	From all sources
`SURF_ug_PM10`	PM₁₀ dry [\(\mu g/m^3\)]
`SURF_ug_PM10_rh50`	PM₁₀ wet [\(\mu g/m^3\)]	PM₁₀ particle water at 50 %rh
`SURF_ug_PM25`	PM_2.5 dry [\(\mu g/m^3\)]	Includes fine PM and 27% of coarse NO\(_3^-\)
`SURF_ug_PM25_rh50`	PM_2.5 wet [\(\mu g/m^3\)]	PM_2.5 particle water at 50 %rh
`SURF_ug_PM25X`	PM_2.5 dry [\(\mu g/m^3\)]	Includes fine PM and 27% of coarse NO\(_3^-\), EC and OM
`SURF_ug_PM25X_rh50`	PM_2.5 [\(\mu g/m^3\)]	As `PM25X` + particle water at 50 %rh
`SURF_ug_PMFINE`	Fine PM [\(\mu g/m^3\)]	Sum of all fine aerosols
`SURF_ug_PPM25`	Primary P\|PM25\| [\(\mu g/m^3\)]	Anthropogenic emissions
`SURF_ug_PPM_C`	Primary coarse PM [\(\mu g/m^3\)]	Anthropogenic emissions
`SURF_ug_PM25_FIRE`	PM_2.5 from forest fires [\(\mu g/m^3\)]	Sum of BC, OC and rest PM_2.5
Dry Depositions
`DDEP_SOX_m2Grid`	Oxidized sulphur [\(mg(S)/m^2\)]	For a grid cell landuse area weighted
`DDEP_SOX_m2Conif`	Oxidized sulphur [\(mg(S)/m^2\)]	To coniferous forest
`DDEP_NOX_m2Grid`	Oxidized nitrogen [\(mg(N)/m^2\)]	For a grid cell landuse area weighted
`DDEP_NOX_m2Decid`	Oxidized nitrogen [\(mg(N)/m^2\)]	To decideous forest
`DDEP_RDN_m2Grid`	Reduced nitrogen [\(mg(N)/m^2\)]	For a grid cell landuse area weighted
`DDEP_RDN_m2Seminat`	Reduced nitrogen [\(mg(N)/m^2\)]	To semi-natural
Wet Depositions
`WDEP_PREC`	Precipitation [mm]
`WDEP_SOX`	Oxidized sulphur [\(mg(S)/m^2\)]
`WDEP_SS`	Sea salt [\(mg/m^2\)]
Others
`AOD`	Aerosol Optical Depth at 550nm	Experimental
`Area_Crops_Frac`	Area fraction of crops	Available for several landuses
`VG_NO3_F_Grid`	Dry deposition velocity of fine NO\(_3^-\)	Grid cell average
Meteorological parameters
`USTAR_GRID`	\(U^*\) grid averaged	Available for several landuses
`T2m`	Temperature at 2m [\(^\circ C\)]
`rh2m`	Fractional relative humidity at 2m

Emission outputs¶

Emis_mgm2_XX fields in the output, give all emissions used by the model (accumulated over the relevant period). Sec_Emis_mgm2_XX are “sector emissions”, i.e. includes only contributions from the files defined in emis_inputlist and Emis_sourceFiles. Sec_Emis_mgm2_XX do not include emissions such as volcanoes, forest fires, DMS, lightning, aircraft etc.

For hourly outputs of emissions set

HourlyEmisOut = T,

For daily outputs of emissions set

DailyEmisOut = T,

Detailed emissions by sectors can be obtained with the keyword SecEmisOutWanted for the wanted sectors. For example adding the lines:

SecEmisOutWanted(2) = T,
SecEmisOutWanted(7) = T,

will give you the emissions for sector 2 and 7 for all components.

Totals per country and sectors (all), can be obtained in the log with:

SecEmisTotalsWanted = T,

To get emissions partitioned into splitted compounds (up to 18), the value EmisSplit_OUT=.true. must be set in Config_module.f90, and the code recompiled. (This parameter cannot be set in config_emep.nml for now)

Add your own fields¶

Most standard output can be outputted by adding lines and modifying the parameters in the config_emep.nml file.

The meteorological fields defined in the met array in the MetFields_mod.f90 file, can be retrieved by using the ‘MET2D’ or ‘MET3D’ keywords. If a 3D array is requested with the ‘MET2D’ keyword, only the lowest level is written out.

If you want an array that does not fit in any category, or even make your own special field, you can get it in the output using the procedure shown below; this will however require that you write in the code and recompile. For instance in config_emep.nml OutputMisc define:

`` ‘J(NO2)’ ,’USET’,’D3_J(NO2)’ ,’photorate’,’1/s’ ,-99,-99,F,1.0,T,’H’,``

The first column (name) is the name as shown in the output
The second column (class) must be ‘USET’
The strings of the first and third columns can be chosen freely, but if one of them starts with the two characters ‘D3’, it will be interpreted as a 3 dimensional field
The fourth column can be any string
The fifth column is the unit, as show in the output
The sixth column (index) is an integer that can be used to characterize internal indices
The seventh columns should be a negative integer
The eigth column can be F or T, indicating wether the field must be divided by the time step (dt_advec)
The ninth column (scale) is a scaling factor
The tenth column, F or T, indicates if the field must be averaged (T) or accumulated (F)
The eleventh (last) column indicates the periodicity of the output. ‘H’-> every hour, ‘YMH’–> every hour, month and at the end of the run (and other combinations are allowed).

In the code you must define the indice of your new ouput. The requested outputs strings are stored in f_2d and f_3d; for instance

photo_out_ix = find_index("D3_J(NO2)", f_3d(:)%subclass)

and the values of the field must be put into the d_2d or d_3d array, using this index, for instance:

if(photo_out_ix>0) d_3d(photo_out_ix,i,j,1:num_lev3d,IOU_INST) = rcphot(IDNO2,lev3d(1:num_lev3d))

(for 2D output, write in d_2d and ommit the vertical index)

ASCII outputs: sites and sondes¶

As noted in ec-sitessondes-input, two main options are available for the output of ASCII files for comparison with measurements or detailed model analysis at specific sites. These are

sites: output of surface concentrations for a set of specified measurement site locations.
sondes: output of concentrations for the vertical column above a set of specified locations.

The output files sites_2015.csv and sondes_2015.csv are comma separated files that can be read by excel, python or fortran tools. If you include the whole year, or the 31^st December, sites_2016.csv and sondes_2016.csv are also included in the output.

Output files¶

Output parameters NetCDF files¶

Emission outputs¶

Add your own fields¶

ASCII outputs: sites and sondes¶

emep-ctm

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