running a CO2 ramp experiment and verifying the output

[peter_m_kalmus@jpl_nasa_gov]

Hi, I'm new, and to start learning the basics I want to ramp CO2 and then verify that it is ramping. I have two questions. 1. In the CESM User's Guide, p. 78, the instruction is to place scenario_ghg in the cam_inparm namelist. I tried this and it led to MPI_ABORT and program termination. I moved it to the camexp namelist, and it runs. Is this a documentation error? 2. Is there a CAM history field that monitors airborne CO2 fraction? In searching the master field list in the CAM User's Guide, it doesn't look like there is... but there must be. I'm running CESM v. 1.0, B_2000,  f19_g16.Thanks,Peter

 

[hannay]

1. This is a error in the documentation.These namelists have moved from cam_inparm to chem_surfvals_nl and the documenation was not updated. You can find the namelists group for each namelist variables in:http://www.cesm.ucar.edu/cgi-bin/eaton/namelist/nldef2html-cam5 You can also enter the variables in: user_nl_cam (see pag 30 in the documentation). 2. About the CO2 diagnostics:you can output m_CO2_c                CO2 mass per layer used in climate calculation (kg/m^2 )
 cb_CO2_c               CO2 column burden used in climate calculation (kg/m^2  )