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How to run abrupt 4XCO2 and ramp 1%/yr CO2 experiment?

Hi all, I want to run abrupt 4XCO2 and 1%yr CO2 experiments, respectively. So, I create new B1850 case, and change the cam namelist like this: in 4XCO2 experimets I set co2vmr=1138.8e-6 and in 1%yr CO2 experiments add ramp_co2_annual_rate = 1,  ramp_co2_cap = 4.0, scenario_ghg = 'RAMP_CO2_ONLY'.I am not sure whether it is right or not. I'll appreciate it if anyone could solve my problem.Regards. Jialiang Ma
 
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