Experiment ID

piClim-histaer

Experiment Title

historical and future transient effective radiative forcing from aerosols

Description

A simulation with time-varying aerosol emissions following the historical and ScenarioMIP scen7-mc scenario, and all other atmospheric components at pre-industrial values. Other than aerosols and the fact that this is a time-varying rather than time-slice experiment, model configuration should be identical to the piClim-control run in DECK. Simulations are run atmosphere-only, with a 12-month repeating climatology of sea surface temperatures and sea-ice distributions taken from a climatology of at least 30 years of the same model's piControl run. Interactive vegetation, if present in the model, should be turned on. Experiment design is similar to CMIP6 piClim-histaer experiment with the future scenario changed from ssp245 to scen7-mc. Note that the CMIP6 RFMIP reference publication (Pincus et al. 2016) referred to piClim-histaerO3 with time-varying aerosols and ozone, but was replaced in favour of piClim-histaer (Smith et al. 2021).

Pincus, R., Forster, P. M., and Stevens, B.: The Radiative Forcing Model Intercomparison Project (RFMIP): experimental protocol for CMIP6, Geosci. Model Dev., 9, 3447–3460, https://doi.org/10.5194/gmd-9-3447-2016, 2016.

Smith, C. J., Harris, G. R., Palmer, M. D., Bellouin, N., Collins, W., Myhre, G., et al. (2021). Energy budget constraints on the time history of aerosol forcing and climate sensitivity. Journal of Geophysical Research: Atmospheres, 126, e2020JD033622. https://doi.org/10.1029/2020JD033622

MIP / Activity ID (registered)

RFMIP

MIP / Activity ID (unregistered)

No response

Parent Experiment

piControl

Custom Parent Experiment

No response

Sub-experiment

none

Priority Tier

1

Source type codes for required model components

AGCM

Source type codes for additional allowed model components

AER, BGC, CHEM

Start Date

1850-01-01

Branch Date

none

(Minimum) Number of Years

251

Issue Type

experiment

Issue Kind

new