Abrupt quadrupling of atmospheric carbon dioxide levels. All other conditions are kept the same as piControl.

Experiment set up¶

The abrupt CO₂ quadrupling simulation is a simple branch from the piControl simulation. After branching, the atmospheric CO₂ concentrations should be set to four times the concentrations used in the piControl simulation.

You are free to start the time axis of your outputs at whatever year you like (e.g. starting at year 1, or 1850, or year 500), although if you want to make life easy for analysts, start your time axis at the branching time. Simulations should be at least 300 years in length. Only one ensemble member is required.

Parent experiment¶

abrupt-4xCO2 branches from the piControl simulation (part of CMIP).

Branch from piControl at a time of your choosing.

Forcings¶

Versions to use¶

The forcings relevant for this simulation are the same as for the piControl simulation.

Notes¶

See notes for the piControl simulation.

Getting the data¶

See instructions for the piControl simulation. You have to quadruple the atmospheric CO₂ concentrations yourself.