Configuring a run with aerosol budgets (NorESM2)

In both the default CAM5-aerosol packages (MAM3,MAM7) and the Oslo-aerosol packages, the budget terms can be taken out using a variable in the namelist :

&phys_ctl_nl
history_aerosol = .true.
/

Fields produced in monthly average files when running with budgets activated

Running with budgets activated will produce the following terms in the monthly output files:

Output variable name	Meaning	Comment
SF{Tracer}	Emissions from surface
GS_{Tracer}	gas phase chemistry	3D-emissions and gas phase washout included in this term
AQ_{Tracer}	aquous chemistry
{Tracer}_Mixnuc1	Activation in clouds and evaporation of cloud droplets
{Tracer}_DDF	Dry deposition flux (aerosol tracers)
{Tracer}_SFWET	Wet deposition flux (aerosol tracers)
{Tracer}_condtend	loss/production in condensation/nuclation	(CAM-Oslo only)
{Tracer}_coagTend	loss/production in coagulation	(CAM-Oslo only)
DF_{Tracer}	dry deposition flux (gas tracers)	output with history_aerosol with CAM-Oslo only
WD_A_{Tracer}	wet deposititon flux (gas tracers)	output with history_aerosol with CAM-Oslo only
Tracer_{CLXF}	3D-emissions (“external forcing”)	output with history_aerosol with CAM-Oslo only

Note: Since 3D-emissions and and gas washout rates are included in the term GS_{Tracer} in the mozart chemistry solver, the individual terms can be found like this (example for SO2):

ncap2 -O -s GS_ONLY_SO2=GS_SO2-WD_A_SO2-SO2_CLXF infile.nc outfile.nc

Looking at the aerosol budgets (CAM-Oslo only)

Go to the directory models/atm/cam/tools/diagnostics/ncl/budgets

Change the filename to use in the file budgets.ncl (“myFileName” around line 18). Should be for example yearly average of month-avg file in a run with budgets

Run the script budgets.sh to create a pdf-file (output.pdf)

Preparing output for AEROCOM

To prepare output for aerocom, use the script located at models/atm/cam/tools/aerocom/ in the svn repository. The script creates files named like aerocom3.${MODELNAME}_${EXPERIMENTNAME}.SVNR{RevisionNumber}.monthly.${VariableName}.nc

Copy these files to the catalogue XXXX and they will be picked up by scripts which show them on the aerocom webpage