Question about changing aerosol emissions

[155066882@qq_com]

Dear all
I want to change the aerosol emissions for mam3 and mam7 simulation.
I know the original files are in atm/cam/chem/trop_mozart_aero/emis/, and the namelist file is in cesm/models/atm/cam/bld/namelist_files/namelist_defaults_cam.xml.
But I can't find the location where the cesm f90 program read and store the emission files, so I can't change them.

Thank you.

 

[eaton]

The module mo_srf_emissions is responsible for reading the surface emission datasets.

You shouldn't need to modify code to change the emissions. Generally the best way to do that is to start by making a copy of the emissions file you want to change, changing its name appropriately, and then using tools that operate on netcdf files to change the values. That way the modified file contains all the necessary variables and metadata (like coordinates and units) that the mo_srf_emissions module is expecting to find. Finally you just update the namelist to use the file you've generated.