Responsible activity: C4MIP

Biogeochemically coupled simulation (i.e. the carbon cycle only 'sees' the increase in atmospheric carbon dioxide, not any change in temperature) of a 1% per year increase in atmospheric carbon dioxide levels. All other conditions are kept the same as piControl.

Experiment set up¶

The 1pctCO2-bgc simulation has the same forcing setup as the 1pctCO2 simulation. The difference is that your model should be configured such that the carbon cycle only sees the change in atmospheric CO₂ concentrations and does not see any other changes (e.g. changes in atmospheric temperatures).

The start-time of the simulation is not tied to a particular year but, rather, can be chosen arbitrarily (e.g., year 200 or year 1850 or year 1). However, it is easier for analysts if the start-time is consistent with the branching time in the parent experiment (e.g., if the the simulation branches from year 200 in the parent experiment, then the start time in the child experiment would be set to year 200). Simulations should be at least 150 years in length. Only one ensemble member is required.

Parent experiment¶

1pctCO2 branches from the piControl simulation (part of CMIP).

Branch from piControl at a time of your choosing.

Forcings¶

General headlines¶

See general headlines for the 1pctCO2 simulation.

Notes¶

See notes for the 1pctCO2 simulation.

Versions to use¶

The forcings relevant for this simulation are the same as for the 1pctCO2 simulation.

Getting the data¶

See instructions for the 1pctCO2 simulation.