I am a beginner to CESM, and am using CESM2.1.3 to run a CO2 forcing experiment. I would like to increase the CO2 concentration by 0.73% for 190 years to go from 284 ppmv (as set by co2vmr in the restart files) to 1135 ppmv.
Can I use the following namelist variables to do so? Any suggestions?
```
scenario_ghg = "RAMP_CO2_ONLY"
ramp_co2_cap = 4.0
ramp_co2_start_ymd = "0101-01-01"
ramp_co2_annual_rate = 0.73
```
Will this conflict with the xml variable CCSM_BGC = CO2A? In my control run, I used this option, but (I think because) I didn't specify emissions, co2vmr remained constant throughout the simulation. Will the above namelists take precedent over the prognostic CO2 specification?
Can I use the following namelist variables to do so? Any suggestions?
```
scenario_ghg = "RAMP_CO2_ONLY"
ramp_co2_cap = 4.0
ramp_co2_start_ymd = "0101-01-01"
ramp_co2_annual_rate = 0.73
```
Will this conflict with the xml variable CCSM_BGC = CO2A? In my control run, I used this option, but (I think because) I didn't specify emissions, co2vmr remained constant throughout the simulation. Will the above namelists take precedent over the prognostic CO2 specification?