Transient Climate Response
The transient climate response (TCR) is defined as the global and annual mean surface air temperature anomaly in the 1pctCO2 scenario (1% CO2 increase per year) for a 20 year period centered at the time of CO2 doubling, i.e. using the years 61 to 80 after the start of the simulation. We calculate the temperature anomaly by subtracting a linear fit of the piControl run for all 140 years of the 1pctCO2 experiment prior to the TCR calculation (see Gregory and Forster, 2008).
Available recipes and diagnostics
Recipes are stored in recipes/
Diagnostics are stored in diag_scripts/
User settings in recipe
area_statistics(operation: mean): Calculate global mean.
calculate_mmm, bool, optional (default:
True): Calculate multi-model mean TCR.
plot, bool, optional (default:
True): Plot temperature vs. time.
read_external_file, str, optional: Read TCR from external file. The path can be given relative to this diagnostic script or as absolute path.
savefig_kwargs, dict, optional: Keyword arguments for
seaborn_settings, dict, optional: Options for
seaborn.set()(affects all plots).
tas (atmos, monthly, longitude, latitude, time)
Observations and reformat scripts
Gregory, J. M., and P. M. Forster. “Transient climate response estimated from radiative forcing and observed temperature change.” Journal of Geophysical Research: Atmospheres 113.D23 (2008).