{
    "validation_key": "piClim-aer",
    "ui_label": "Effective radiative forcing by present-day aerosols",
    "description": "A time-slice simulation with present-day aerosol emissions and all other atmospheric components at pre-industrial values. Other than aerosols, 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 identical to CMIP6 `piClim-aer` experiment. Note that the CMIP6 RFMIP reference publication (Pincus et al. 2016) referred to `piClim-aerO3` with present-day aerosols and ozone, but was replaced in favour of `piClim-aer` (Smith et al. 2020).  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., Kramer, R. J., Myhre, G., Alterskjær, K., Collins, W., Sima, A., Boucher, O., Dufresne, J.-L., Nabat, P., Michou, M., Yukimoto, S., Cole, J., Paynter, D., Shiogama, H., O'Connor, F. M., Robertson, E., Wiltshire, A., Andrews, T., Hannay, C., Miller, R., Nazarenko, L., Kirkevåg, A., Olivié, D., Fiedler, S., Lewinschal, A., Mackallah, C., Dix, M., Pincus, R., and Forster, P. M.: Effective radiative forcing and adjustments in CMIP6 models, Atmos. Chem. Phys., 20, 9591–9618, https://doi.org/10.5194/acp-20-9591-2020, 2020.",
    "activity": [
        "aerchemmip"
    ],
    "alias": [],
    "branch_date": "none",
    "minimum_number_of_years": 30,
    "model_realms_additional_allowed": [
        "aer",
        "bgc",
        "chem"
    ],
    "model_realms_required": [
        "agcm"
    ],
    "parent_experiment": [
        "picontrol"
    ],
    "references": [
        "10.5194/gmd-9-3447-2016",
        "10.5194/acp-20-9591-2020"
    ],
    "start_date": "none",
    "tier": "1",
    "@context": "_context",
    "@type": [
        "wcrp:experiment",
        "esgvoc:Experiment",
        "cmip7"
    ],
    "@id": "piclim-aer"
}
