{
    "Header": {
        "author": "Matthew Mizielinski",
        "collection": {
            "CV_collection_version": "v6.5.10.3",
            "CV_collection_modified": "2026-03-18T15:30:00Z",
            "CV_collection_release": "https://github.com/WCRP-CMIP/CMIP6Plus_CVs/releases/tag/v6.5.10.3",
            "specs_doc": "v6.5.0"
        },
        "file": {
            "experiment_id_modified": "Thu Dec 12 13:28:00 2024 +0000",
            "experiment_id_note": "Added TIPMIP Tier 2 experiments",
            "experiment_id_update_commit": "c5347255773c6678036cf7389d14a0341cef9f38",
            "checksum": "md5: 2a15e6128aed8ec1174cbc5a5dd75900"
        },
        "institution_id": "MOHC"
    },
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            "activity_id": [
                "CMIP"
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            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "DECK: 1pctCO2",
            "end": "",
            "experiment": "1 percent per year increase in CO2",
            "experiment_id": "1pctCO2",
            "min_number_yrs_per_sim": 150,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": "",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "abrupt-4xCO2": {
            "activity_id": [
                "CMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "DECK: abrupt-4xCO2",
            "end": "",
            "experiment": "abrupt quadrupling of CO2",
            "experiment_id": "abrupt-4xCO2",
            "min_number_yrs_per_sim": 150,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": "",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "amip": {
            "activity_id": [
                "CMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "DECK: AMIP",
            "end": 2022,
            "experiment": "AMIP",
            "experiment_id": "amip",
            "min_number_yrs_per_sim": 43,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AGCM"
            ],
            "start": 1979,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "amip-aer": {
            "activity_id": [
                "CERESMIP"
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            "additional_allowed_model_components": [
                "AER",
                "CHEM"
            ],
            "description": "AMIP with Aer-only: Anthropogenic-aerosol-only simulations with observed SST/SIC",
            "end": "2024",
            "experiment": "AMIP with Aer-only",
            "experiment_id": "amip-aer",
            "min_number_yrs_per_sim": 35,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AGCM"
            ],
            "start": "1990",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "amip-ghg": {
            "activity_id": [
                "CERESMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM"
            ],
            "description": "AMIP with WMGHG-only: Well-mixed greenhouse-gas-only simulations with observed SST/SIC",
            "end": "2024",
            "experiment": "AMIP with WMGHG-only",
            "experiment_id": "amip-ghg",
            "min_number_yrs_per_sim": 35,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AGCM"
            ],
            "start": "1990",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "amip-nat": {
            "activity_id": [
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            "additional_allowed_model_components": [
                "AER",
                "CHEM"
            ],
            "description": "Amip with Natural forcings: Solar + volcanic + orbital with observed SST/SIC. All other boundary\u00a0conditions set\u00a0to 1850.",
            "end": "2024",
            "experiment": "Amip with Natural forcings",
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            "min_number_yrs_per_sim": 35,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AGCM"
            ],
            "start": "1990",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "amip-noaer": {
            "activity_id": [
                "CERESMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM"
            ],
            "description": "AMIP but no aerosol changes: As with amip, but no changes in aerosols",
            "end": "2024",
            "experiment": "AMIP but no aerosol changes",
            "experiment_id": "amip-noaer",
            "min_number_yrs_per_sim": 35,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AGCM"
            ],
            "start": "1990",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "amip-noghg": {
            "activity_id": [
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                "CHEM"
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            "end": "2024",
            "experiment": "AMIP but no ghgs",
            "experiment_id": "amip-noghg",
            "min_number_yrs_per_sim": 35,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AGCM"
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            "start": "1990",
            "sub_experiment_id": [
                "none"
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            "tier": 2
        },
        "amip-nudge": {
            "activity_id": [
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            "additional_allowed_model_components": [
                "AER",
                "CHEM"
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            "description": "Nudged amip: All forcings (single run, nudged winds) with observed SST/SIC",
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            "experiment": "Nudged amip",
            "experiment_id": "amip-nudge",
            "min_number_yrs_per_sim": 35,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AGCM"
            ],
            "start": "1990",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "amip-slcf": {
            "activity_id": [
                "CERESMIP"
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            "additional_allowed_model_components": [
                "AER",
                "CHEM"
            ],
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            "end": "2024",
            "experiment": "AMIP with SLCF-only",
            "experiment_id": "amip-slcf",
            "min_number_yrs_per_sim": 35,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AGCM"
            ],
            "start": "1990",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "amip-sst": {
            "activity_id": [
                "CERESMIP"
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            "additional_allowed_model_components": [
                "AER",
                "CHEM"
            ],
            "description": "AMIP with SST/SIC-only: Observed SST/SIC change only",
            "end": "2024",
            "experiment": "AMIP with SST/SIC-only",
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            "min_number_yrs_per_sim": 35,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AGCM"
            ],
            "start": "1990",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "dcppA-assim": {
            "activity_id": [
                "DCPP"
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            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
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            "description": "A2.3 Assimilation runs used to generate initial conditions for hindcasts",
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            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AOGCM"
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            "start": "before 1961",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
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                "CHEM",
                "BGC"
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            "experiment": "hindcast initialized based on observations and using historical forcing",
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            "parent_activity_id": [
                "no parent",
                "DCPP"
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            "parent_experiment_id": [
                "no parent",
                "dcppA-assim"
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            "required_model_components": [
                "AOGCM"
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                "s1961",
                "s1962",
                "s1963",
                "s1964",
                "s1965",
                "s1966",
                "s1967",
                "s1968",
                "s1969",
                "s1970",
                "s1971",
                "s1972",
                "s1973",
                "s1974",
                "s1975",
                "s1976",
                "s1977",
                "s1978",
                "s1979",
                "s1980",
                "s1981",
                "s1982",
                "s1983",
                "s1984",
                "s1985",
                "s1986",
                "s1987",
                "s1988",
                "s1989",
                "s1990",
                "s1991",
                "s1992",
                "s1993",
                "s1994",
                "s1995",
                "s1996",
                "s1997",
                "s1998",
                "s1999",
                "s2000",
                "s2001",
                "s2002",
                "s2003",
                "s2004",
                "s2005",
                "s2006",
                "s2007",
                "s2008",
                "s2009",
                "s2010",
                "s2011",
                "s2012",
                "s2013",
                "s2014",
                "s2015",
                "s2016",
                "s2017",
                "s2018",
                "s2019"
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            "tier": 1
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                "CHEM",
                "BGC"
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            "experiment": "hindcast initialized based on observations but without using knowledge of subsequent historical forcing",
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            "parent_activity_id": [
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                "DCPP"
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            "parent_experiment_id": [
                "no parent",
                "dcppA-assim"
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            "required_model_components": [
                "AOGCM"
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            "start": "a year in the range 1960-2019",
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                "s1960",
                "s1961",
                "s1962",
                "s1963",
                "s1964",
                "s1965",
                "s1966",
                "s1967",
                "s1968",
                "s1969",
                "s1970",
                "s1971",
                "s1972",
                "s1973",
                "s1974",
                "s1975",
                "s1976",
                "s1977",
                "s1978",
                "s1979",
                "s1980",
                "s1981",
                "s1982",
                "s1983",
                "s1984",
                "s1985",
                "s1986",
                "s1987",
                "s1988",
                "s1989",
                "s1990",
                "s1991",
                "s1992",
                "s1993",
                "s1994",
                "s1995",
                "s1996",
                "s1997",
                "s1998",
                "s1999",
                "s2000",
                "s2001",
                "s2002",
                "s2003",
                "s2004",
                "s2005",
                "s2006",
                "s2007",
                "s2008",
                "s2009",
                "s2010",
                "s2011",
                "s2012",
                "s2013",
                "s2014",
                "s2015",
                "s2016",
                "s2017",
                "s2018",
                "s2019"
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            "tier": 4
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            "additional_allowed_model_components": [
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                "CHEM",
                "BGC"
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            "description": "A4.2 Hindcasts initialized from historical climate simulations as in DCPP-A2.2, but with no information from the future. First full hindcast year follows start year (e.g., for s1960, first full hindcast year is 1961)",
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            "parent_experiment_id": [
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            "required_model_components": [
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                "s1961",
                "s1962",
                "s1963",
                "s1964",
                "s1965",
                "s1966",
                "s1967",
                "s1968",
                "s1969",
                "s1970",
                "s1971",
                "s1972",
                "s1973",
                "s1974",
                "s1975",
                "s1976",
                "s1977",
                "s1978",
                "s1979",
                "s1980",
                "s1981",
                "s1982",
                "s1983",
                "s1984",
                "s1985",
                "s1986",
                "s1987",
                "s1988",
                "s1989",
                "s1990",
                "s1991",
                "s1992",
                "s1993",
                "s1994",
                "s1995",
                "s1996",
                "s1997",
                "s1998",
                "s1999",
                "s2000",
                "s2001",
                "s2002",
                "s2003",
                "s2004",
                "s2005",
                "s2006",
                "s2007",
                "s2008",
                "s2009",
                "s2010",
                "s2011",
                "s2012",
                "s2013",
                "s2014",
                "s2015",
                "s2016",
                "s2017",
                "s2018",
                "s2019"
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            "tier": 4
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            "additional_allowed_model_components": [
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                "CHEM",
                "BGC"
            ],
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            "experiment": "forecast initialized from observations with forcing from ssp245",
            "experiment_id": "dcppB-forecast",
            "min_number_yrs_per_sim": 5,
            "parent_activity_id": [
                "no parent",
                "DCPP"
            ],
            "parent_experiment_id": [
                "no parent",
                "dcppA-assim"
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            "required_model_components": [
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            "start": "a year in the range 2017-2029",
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                "s2018",
                "s2019",
                "s2020",
                "s2021",
                "s2022",
                "s2023",
                "s2024",
                "s2025",
                "s2026",
                "s2027",
                "s2028",
                "s2029"
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            "tier": 1
        },
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            "additional_allowed_model_components": [
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                "CHEM"
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            "description": "CMIP6 historical (CO2 emission-driven)",
            "end": 2014,
            "experiment": "all-forcing simulation of the recent past with atmospheric CO2 concentration calculated (CO2 emission-driven)",
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            "parent_activity_id": [
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            "parent_experiment_id": [
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            "required_model_components": [
                "AOGCM",
                "BGC"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
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            "activity_id": [
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            "additional_allowed_model_components": [
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                "CHEM"
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            "description": "DECK: control (emission-driven)",
            "end": "",
            "experiment": "pre-industrial control simulation with preindustrial CO2 emissions defined (CO2 emission-driven)",
            "experiment_id": "esm-piControl",
            "min_number_yrs_per_sim": 500,
            "parent_activity_id": [
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            ],
            "parent_experiment_id": [
                "esm-piControl-spinup"
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            "required_model_components": [
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                "BGC"
            ],
            "start": "",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "esm-piControl-spinup": {
            "activity_id": [
                "CMIP"
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            "additional_allowed_model_components": [
                "AER",
                "CHEM"
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            "description": "DECK: spin-up portion of the control (emission-driven)",
            "end": "",
            "experiment": "pre-industrial control simulation with CO2 concentration calculated (spin-up)",
            "experiment_id": "esm-piControl-spinup",
            "min_number_yrs_per_sim": 100,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AOGCM",
                "BGC"
            ],
            "start": "",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "esm-up2p0": {
            "activity_id": [
                "TIPMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM"
            ],
            "description": "ramp up with constant CO2 emissions",
            "end": "",
            "experiment": "ramp up simulation with constant CO2 emissions yielding a warming of approximately 2 K/century (see TIPMIP experiment protocol for details)",
            "experiment_id": "esm-up2p0",
            "min_number_yrs_per_sim": 215,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "esm-piControl"
            ],
            "required_model_components": [
                "AOGCM",
                "BGC"
            ],
            "start": "",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "esm-up2p0-gwl1p5": {
            "activity_id": [
                "TIPMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM"
            ],
            "description": "stabilisation at GWL1.5",
            "end": "",
            "experiment": "zero CO2 emissions simulation starting at global warming level of 1.5K, branching off from esm-up2p0",
            "experiment_id": "esm-up2p0-gwl1p5",
            "min_number_yrs_per_sim": 300,
            "parent_activity_id": [
                "TIPMIP"
            ],
            "parent_experiment_id": [
                "esm-up2p0"
            ],
            "required_model_components": [
                "AOGCM",
                "BGC"
            ],
            "start": "",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "esm-up2p0-gwl1p5-50y-dn2p0": {
            "activity_id": [
                "TIPMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM"
            ],
            "description": "ramp-down after GWL1.5",
            "end": "",
            "experiment": "ramp down from global warming level of 1.5K after 50 years, with CO2 emissions that are the negative of those used in esm-up2p0",
            "experiment_id": "esm-up2p0-gwl1p5-50y-dn2p0",
            "min_number_yrs_per_sim": 75,
            "parent_activity_id": [
                "TIPMIP"
            ],
            "parent_experiment_id": [
                "esm-up2p0-gwl1p5"
            ],
            "required_model_components": [
                "AOGCM",
                "BGC"
            ],
            "start": "",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "esm-up2p0-gwl2p0": {
            "activity_id": [
                "TIPMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM"
            ],
            "description": "stabilisation at GWL2",
            "end": "",
            "experiment": "zero CO2 emissions simulation starting at global warming level of 2K, branching off from esm-up2p0",
            "experiment_id": "esm-up2p0-gwl2p0",
            "min_number_yrs_per_sim": 300,
            "parent_activity_id": [
                "TIPMIP"
            ],
            "parent_experiment_id": [
                "esm-up2p0"
            ],
            "required_model_components": [
                "AOGCM",
                "BGC"
            ],
            "start": "",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "esm-up2p0-gwl2p0-200y-dn2p0": {
            "activity_id": [
                "TIPMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM"
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            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 1
        },
        "hist-lu": {
            "activity_id": [
                "LESFMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Historical simulations with only land use changes",
            "end": 2020,
            "experiment": "Single forcing historical simulations",
            "experiment_id": "hist-lu",
            "min_number_yrs_per_sim": "none",
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 1
        },
        "hist-nat": {
            "activity_id": [
                "LESFMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Natural forcings (solar + volcanic)",
            "end": 2020,
            "experiment": "historical natural-only run",
            "experiment_id": "hist-nat",
            "min_number_yrs_per_sim": "none",
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 3
        },
        "hist-noLu": {
            "activity_id": [
                "LESFMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Same as CMIP6 historical but with land cover held at 1850, no human activity; concentration driven",
            "end": 2020,
            "experiment": "historical with no land-use change",
            "experiment_id": "hist-noLu",
            "min_number_yrs_per_sim": "none",
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 3
        },
        "hist-piAer": {
            "activity_id": [
                "LESFMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Historical WMGHG, halocarbon concentrations and O3 precursor emissions, 1850 aerosol precursor emissions.",
            "end": 2020,
            "experiment": "historical forcing, but with pre-industrial aerosol emissions",
            "experiment_id": "hist-piAer",
            "min_number_yrs_per_sim": "none",
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 3
        },
        "hist-piGHG": {
            "activity_id": [
                "LESFMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Pre-industrial WMGHG, halocarbon and O3 precursor emissions, other forcings as for the historical experiment",
            "end": 2020,
            "experiment": "historical forcing but with pre-industrial GHG",
            "experiment_id": "hist-piGHG",
            "min_number_yrs_per_sim": "none",
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 3
        },
        "hist-piSol": {
            "activity_id": [
                "LESFMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "historical simulations with 1850 solar forcing",
            "end": 2020,
            "experiment": "historical all-but-solar run",
            "experiment_id": "hist-piSol",
            "min_number_yrs_per_sim": "none",
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 3
        },
        "hist-piTotalO3": {
            "activity_id": [
                "LESFMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "historical simulations with 1850 total ozone",
            "end": 2020,
            "experiment": "historical all-but-ozone run",
            "experiment_id": "hist-piTotalO3",
            "min_number_yrs_per_sim": "none",
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 3
        },
        "hist-piVolc": {
            "activity_id": [
                "LESFMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "historical simulations with 1850 volcanic emissions",
            "end": 2020,
            "experiment": "historical all-but-volcanic run",
            "experiment_id": "hist-piVolc",
            "min_number_yrs_per_sim": "none",
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 3
        },
        "hist-sol": {
            "activity_id": [
                "LESFMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Solar-only historical simulations",
            "end": 2020,
            "experiment": "historical solar-only run",
            "experiment_id": "hist-sol",
            "min_number_yrs_per_sim": "none",
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 1
        },
        "hist-totalO3": {
            "activity_id": [
                "LESFMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Ozone-only historical simulations",
            "end": 2020,
            "experiment": "historical total ozone-only run",
            "experiment_id": "hist-totalO3",
            "min_number_yrs_per_sim": "none",
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 1
        },
        "hist-volc": {
            "activity_id": [
                "LESFMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Volcanic-only historical simulations",
            "end": 2020,
            "experiment": "historical volcanic-only run",
            "experiment_id": "hist-volc",
            "min_number_yrs_per_sim": "none",
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "f2023"
            ],
            "tier": 1
        },
        "historical": {
            "activity_id": [
                "CMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "CMIP6 historical",
            "end": 2014,
            "experiment": "all-forcing simulation of the recent past (CO2 concentration-driven)",
            "experiment_id": "historical",
            "min_number_yrs_per_sim": 165,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1850,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "piClim-370": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "CHEM",
                "BGC"
            ],
            "description": "",
            "end": 2080,
            "experiment": "pre-industrial climatological SSTs and forcing, but with 2050 anthropogenic emissions from SSP3-7.0.",
            "experiment_id": "piClim-370",
            "min_number_yrs_per_sim": 30,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AGCM",
                "AER"
            ],
            "start": 2050,
            "sub_experiment_id": [
                "none"
            ]
        },
        "piClim-370-126aer": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "CHEM",
                "BGC"
            ],
            "description": "",
            "end": 2080,
            "experiment": "pre-industrial climatological SSTs and forcing, but with 2050 anthropogenic emissions. Aerosol and precursor emissions are taken from SSP1-2.6, while all other anthropogenic emissions follow SSP3-7.0.",
            "experiment_id": "piClim-370-126aer",
            "min_number_yrs_per_sim": 30,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AGCM",
                "AER"
            ],
            "start": 2050,
            "sub_experiment_id": [
                "none"
            ]
        },
        "piClim-370-126aer-nh3nox": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "CHEM",
                "BGC"
            ],
            "description": "",
            "end": 2080,
            "experiment": "pre-industrial climatological SSTs and forcing, but with 2050 anthropogenic emissions. Aerosol and precursor emissions, including NH3 and NOx, are taken from SSP1-2.6, while all other anthropogenic emissions follow SSP3-7.0.",
            "experiment_id": "piClim-370-126aer-nh3nox",
            "min_number_yrs_per_sim": 30,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AGCM",
                "AER"
            ],
            "start": 2050,
            "sub_experiment_id": [
                "none"
            ]
        },
        "piClim-370-afr126aer": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "CHEM",
                "BGC"
            ],
            "description": "",
            "end": 2080,
            "experiment": "pre-industrial climatological SSTs and forcing, but with 2050 anthropogenic emissions. Aerosol and precursor emissions over Africa and the Middle East are taken from SSP1-2.6, while all other anthropogenic emissions follow SSP3-7.0.",
            "experiment_id": "piClim-370-afr126aer",
            "min_number_yrs_per_sim": 30,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AGCM",
                "AER"
            ],
            "start": 2050,
            "sub_experiment_id": [
                "none"
            ]
        },
        "piClim-370-eas126aer": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "CHEM",
                "BGC"
            ],
            "description": "",
            "end": 2080,
            "experiment": "pre-industrial climatological SSTs and forcing, but with 2050 anthropogenic emissions. Aerosol and precursor emissions over East Asia are taken from SSP1-2.6, while all other anthropogenic emissions follow SSP3-7.0.",
            "experiment_id": "piClim-370-eas126aer",
            "min_number_yrs_per_sim": 30,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AGCM",
                "AER"
            ],
            "start": 2050,
            "sub_experiment_id": [
                "none"
            ]
        },
        "piClim-370-nae126aer": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "CHEM",
                "BGC"
            ],
            "description": "",
            "end": 2080,
            "experiment": "pre-industrial climatological SSTs and forcing, but with 2050 anthropogenic emissions. Aerosol and precursor emissions over North America and Europe are taken from SSP1-2.6, while all other anthropogenic emissions follow SSP3-7.0.",
            "experiment_id": "piClim-370-nae126aer",
            "min_number_yrs_per_sim": 30,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AGCM",
                "AER"
            ],
            "start": 2050,
            "sub_experiment_id": [
                "none"
            ]
        },
        "piClim-370-sas126aer": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "CHEM",
                "BGC"
            ],
            "description": "",
            "end": 2080,
            "experiment": "pre-industrial climatological SSTs and forcing, but with 2050 anthropogenic emissions. Aerosol and precursor emissions over South Asia are taken from SSP1-2.6, while all other anthropogenic emissions follow SSP3-7.0.",
            "experiment_id": "piClim-370-sas126aer",
            "min_number_yrs_per_sim": 30,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl"
            ],
            "required_model_components": [
                "AGCM",
                "AER"
            ],
            "start": 2050,
            "sub_experiment_id": [
                "none"
            ]
        },
        "piControl": {
            "activity_id": [
                "CMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "DECK: control",
            "end": "",
            "experiment": "pre-industrial control (CO2 concentration-driven)",
            "experiment_id": "piControl",
            "min_number_yrs_per_sim": 500,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "piControl-spinup"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": "",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "piControl-spinup": {
            "activity_id": [
                "CMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "DECK: spin-up portion of the control",
            "end": "",
            "experiment": "pre-industrial control (spin-up)",
            "experiment_id": "piControl-spinup",
            "min_number_yrs_per_sim": 100,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": "",
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "ssp119": {
            "activity_id": [
                "ScenarioMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Future scenario with low radiative forcing throughout reaching about 1.9 W/m2 in 2100 based on SSP1. Concentration-driven",
            "end": 2100,
            "experiment": "low-end scenario reaching 1.9 W m-2, based on SSP1",
            "experiment_id": "ssp119",
            "min_number_yrs_per_sim": 86,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "ssp126": {
            "activity_id": [
                "ScenarioMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Future scenario with low radiative forcing by the end of century. Following approximately RCP2.6 global forcing pathway but with new forcing based on SSP1. Concentration-driven. As a tier 2 option, this simulation should be extended to year 2300",
            "end": "2100 or 2300",
            "experiment": "update of RCP2.6 based on SSP1",
            "experiment_id": "ssp126",
            "min_number_yrs_per_sim": 86,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "ssp245": {
            "activity_id": [
                "ScenarioMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Future scenario with medium radiative forcing by the end of century. Following approximately RCP4.5 global forcing pathway but with new forcing based on SSP2. Concentration-driven",
            "end": 2100,
            "experiment": "update of RCP4.5 based on SSP2",
            "experiment_id": "ssp245",
            "min_number_yrs_per_sim": 86,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "ssp245-ch4-tm": {
            "activity_id": [
                "MethaneMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "fully coupled companion simulations to CMIP6 experiment ssp245 with methane concentrations (and potentially ozone concentrations) prescribed according to technical measures scenario 2020-2050, based on employing all plausible technical methane mitigation measures",
            "end": 2050,
            "experiment": "ssp245 with methane concentrations reduced according to technical measures mitigation scenario",
            "experiment_id": "ssp245-ch4-tm",
            "min_number_yrs_per_sim": 31,
            "parent_activity_id": [
                "ScenarioMIP"
            ],
            "parent_experiment_id": [
                "ssp245"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2020,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "ssp245-ch4-tmbc": {
            "activity_id": [
                "MethaneMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "fully coupled companion simulations to ssp245 with methane concentrations (and potentially ozone concentrations) prescribed according to ambitious scenario 2020-2050, based on employing all plausible technical methane mitigation measures as well as behavioural changes",
            "end": 2050,
            "experiment": "ssp245 with methane concentrations reduced according to ambitious mitigation scenario",
            "experiment_id": "ssp245-ch4-tmbc",
            "min_number_yrs_per_sim": 31,
            "parent_activity_id": [
                "ScenarioMIP"
            ],
            "parent_experiment_id": [
                "ssp245"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2020,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "ssp370": {
            "activity_id": [
                "ScenarioMIP",
                "AerChemMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Future scenario with high radiative forcing by the end of century. Reaches about 7.0 W/m2 by 2100; fills gap in RCP forcing pathways between 6.0 and 8.5 W/m2. Concentration-driven",
            "end": 2100,
            "experiment": "gap-filling scenario reaching 7.0 based on SSP3",
            "experiment_id": "ssp370",
            "min_number_yrs_per_sim": 86,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "ssp370-126aer": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "SSP3-7.0 anthropogenic emissions, but with anthropogenic aerosol and precursor emissions taken from SSP1-2.6.",
            "end": 2051,
            "experiment": "SSP3-7.0 forcing, but with SSP1-2.6 anthropogenic aerosol and precursor emissions",
            "experiment_id": "ssp370-126aer",
            "min_number_yrs_per_sim": 37,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "ssp370-126aer_nh3nox": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "SSP3-7.0 anthropogenic emissions, but anthropogenic aerosol and precursor emissions, including NH3 and NOx, taken from SSP1-2.6.",
            "end": 2051,
            "experiment": "SSP3-7.0 forcing, but with SSP1-2.6 anthropogenic aerosol and precursor emissions, including NH3 and NOx.",
            "experiment_id": "ssp370-126aer_nh3nox",
            "min_number_yrs_per_sim": 37,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "ssp370-afr126aer": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "SSP3-7.0 anthropogenic emissions, but with African and Middle Eastern anthropogenic aerosol and precursor emissions taken from SSP1-2.6. Africa and the Middle East is the region bounded by 20W, 60E, 35S and 35N.",
            "end": 2051,
            "experiment": "SSP3-7.0 forcing, but with SSP1-2.6 anthropogenic aerosol and precursor emissions over Africa and the Middle East",
            "experiment_id": "ssp370-afr126aer",
            "min_number_yrs_per_sim": 37,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "ssp370-asia126aer": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "SSP3-7.0 anthropogenic emissions, but with Asian anthropogenic aerosol and precursor emissions taken from SSP1-2.6. Asia is defined as the combination of the East Asian and South Asian regions used in ssp370-eas126aer and ssp370-sas126aer. ",
            "end": 2051,
            "experiment": "SSP3-7.0 forcing, but with SSP1-2.6 anthropogenic aerosol and precursor emissions over Asia.",
            "experiment_id": "ssp370-asia126aer",
            "min_number_yrs_per_sim": 37,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "ssp370-eas126aer": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "SSP3-7.0 anthropogenic emissions, but with East Asian anthropogenic aerosol and precursor emissions taken from SSP1-2.6. East Asia is the region bounded by 95 and 133E and 20 and 53N.",
            "end": 2051,
            "experiment": "SSP3-7.0 forcing, but with SSP1-2.6 anthropogenic aerosol and precursor emissions over East Asia",
            "experiment_id": "ssp370-eas126aer",
            "min_number_yrs_per_sim": 37,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "ssp370-nae126aer": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "SSP3-7.0 anthropogenic emissions, but with North American and European anthropogenic aerosol and precursor emissions taken from SSP1-2.6. North America and Europe are the regions bounded by 150W, 45W, 25N and 70N, and 20W, 45E, 35N and 70N.",
            "end": 2051,
            "experiment": "SSP3-7.0 forcing, but with SSP1-2.6 anthropogenic aerosol and precursor emissions over North America and Europe",
            "experiment_id": "ssp370-nae126aer",
            "min_number_yrs_per_sim": 37,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "ssp370-saf126ca": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "SSP3-7.0 anthropogenic emissions, but with sub-Saharan African black carbon and organic carbon emissions taken from SSP1-2.6. Sub-Saharan Africa is the region bounded by 20W, 50E, 35S, and 12N",
            "end": 2051,
            "experiment": "SSP3-7.0 forcing, but with SSP1-2.6 black carbon and organic carbon emissions over sub-Saharan Africa.",
            "experiment_id": "ssp370-saf126ca",
            "min_number_yrs_per_sim": 37,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "ssp370-sas126aer": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "SSP3-7.0 anthropogenic emissions, but with South Asian anthropogenic aerosol and precursor emissions taken from SSP1-2.6. South Asia is the region bounded by 65 and 95E and 5 and 35N.",
            "end": 2051,
            "experiment": "SSP3-7.0 forcing, but with SSP1-2.6 anthropogenic aerosol and precursor emissions over South Asia",
            "experiment_id": "ssp370-sas126aer",
            "min_number_yrs_per_sim": 37,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "ssp370-sas126ca": {
            "activity_id": [
                "RAMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "SSP3-7.0 anthropogenic emissions, but with South Asian black carbon and organic carbon emissions taken from SSP1-2.6. South Asia is the region bounded by 65 and 95E and 5 and 35N.",
            "end": 2051,
            "experiment": "SSP3-7.0 forcing, but with SSP1-2.6 black carbon and organic carbon emissions over South Asia.",
            "experiment_id": "ssp370-sas126ca",
            "min_number_yrs_per_sim": 37,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "ssp434": {
            "activity_id": [
                "ScenarioMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Future scenario with low radiative forcing by the end of century. Reaches about 3.4 W/m2 by 2100; fills gap in RCP forcing pathways between 4.5 and 2.6 W/m2. Concentration-driven",
            "end": 2100,
            "experiment": "gap-filling scenario reaching 3.4 based on SSP4",
            "experiment_id": "ssp434",
            "min_number_yrs_per_sim": 86,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "ssp460": {
            "activity_id": [
                "ScenarioMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Future scenario with medium radiative forcing by the end of century. Following approximately RCP6.0 global forcing pathway but with new forcing based on SSP4. Concentration-driven",
            "end": 2100,
            "experiment": "update of RCP6.0 based on SSP4",
            "experiment_id": "ssp460",
            "min_number_yrs_per_sim": 86,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "ssp534-over": {
            "activity_id": [
                "ScenarioMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "21st century overshoot scenario relative to SSP5_34. Branches from SSP5_85 at 2040 with emissions reduced to zero by 2070 and negative thereafter. This simulation should optionally be extended to year 2300",
            "end": "2100 or 2300",
            "experiment": "overshoot of 3.4 W/m**2 branching from ssp585 in 2040",
            "experiment_id": "ssp534-over",
            "min_number_yrs_per_sim": 61,
            "parent_activity_id": [
                "ScenarioMIP"
            ],
            "parent_experiment_id": [
                "ssp585"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2040,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "ssp585": {
            "activity_id": [
                "ScenarioMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Future scenario with high radiative forcing by the end of century. Following approximately RCP8.5 global forcing pathway but with new forcing based on SSP5. Concentration-driven. As a tier 2 option, this simulation should be extended to year 2300",
            "end": "2100 or 2300",
            "experiment": "update of RCP8.5 based on SSP5",
            "experiment_id": "ssp585",
            "min_number_yrs_per_sim": 86,
            "parent_activity_id": [
                "CMIP"
            ],
            "parent_experiment_id": [
                "historical"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 2015,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "tbi-hind-A": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Hindcast experiment for the period 1982-2021 with ocean initialization in February (mandatory), May, August, and November (recommended). SSTs are restored to observations in the tropical Atlantic Ocean (10 S-10 N) during the forecasts.",
            "end": 2021,
            "experiment": "Hindcast with SST anomalies restored to observations in the tropical Atlantic",
            "experiment_id": "tbi-hind-A",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-hind-ctrl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "tbi-hind-A-anom": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Hindcast experiment for the period 1982-2021 with ocean initialization in February (mandatory), May, August, and November (recommended). SSTs are restored to model climatology plus observed anomalies in the tropical Atlantic Ocean (10 S-10 N) during the forecasts.",
            "end": 2021,
            "experiment": "Hindcast with SST anomalies restored to observations in the tropical Atlantic",
            "experiment_id": "tbi-hind-A-anom",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-hind-ctrl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "tbi-hind-I": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Hindcast experiment for the period 1982-2021 with ocean initialization in February (mandatory), May, August, and November (recommended). SSTs are restored to observations in the tropical Indian Ocean (10 S-10 N) during the forecasts.",
            "end": 2021,
            "experiment": "Hindcast with SST anomalies restored to observations in the tropical Indian Ocean",
            "experiment_id": "tbi-hind-I",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-hind-ctrl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "tbi-hind-I-anom": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Hindcast experiment for the period 1982-2021 with ocean initialization in February (mandatory), May, August, and November (recommended). SSTs are restored to model climatology plus observed anomalies in the tropical Indian Ocean (10 S-10 N) during the forecasts.",
            "end": 2021,
            "experiment": "Hindcast with SST anomalies restored to observations in the tropical Indian Ocean",
            "experiment_id": "tbi-hind-I-anom",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-hind-ctrl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "tbi-hind-P": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Hindcast experiment for the period 1982-2021 with ocean initialization in February (mandatory), May, August, and November (recommended). SSTs are restored to observations in the tropical Pacific Ocean (10 S-10 N) during the forecasts.",
            "end": 2021,
            "experiment": "Hindcast with SST anomalies restored to observations in the tropical Pacific Ocean",
            "experiment_id": "tbi-hind-P",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-hind-ctrl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "tbi-hind-P-anom": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Hindcast experiment for the period 1982-2021 with ocean initialization in February (mandatory), May, August, and November (recommended). SSTs are restored to model climatology plus observed anomalies in the tropical Pacific Ocean (10 S-10 N) during the forecasts.",
            "end": 2021,
            "experiment": "Hindcast with SST anomalies restored to observations in the tropical Pacific Ocean",
            "experiment_id": "tbi-hind-P-anom",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-hind-ctrl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "tbi-hind-ctrl": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Hindcast experiment for the period 1982-2021 with ocean initialization in February (mandatory), May, August, and November (recommended).",
            "end": 2021,
            "experiment": "Seasonal hindcast experiment",
            "experiment_id": "tbi-hind-ctrl",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "tbi-hist-ctrl": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Reference experiment: coupled ocean-atmosphere simulation with radiative forcing from historical (up to 2014) and ssp585 (2015-2021). If historical and ssp585 have already been performed the output from these experiments can be used instead.",
            "end": 2021,
            "experiment": "Coupled ocean-atmosphere simulation with historical radiative forcing",
            "experiment_id": "tbi-hist-ctrl",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "no parent"
            ],
            "parent_experiment_id": [
                "no parent"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "tbi-pace-A": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Pacemaker experiment with SST restoring in the tropical Atlantic Ocean (10 S-10 N). The restoring target is the observed SST.",
            "end": 2021,
            "experiment": "Pacemaker experiment with SST anomalies restored to observations in the tropical Atlantic",
            "experiment_id": "tbi-pace-A",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-hist-ctrl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "tbi-pace-A-anom": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Pacemaker experiment with SST restoring in the tropical Atlantic Ocean (10 S-10 N). The restoring target is the model SST climatology plus observed SST anomalies.",
            "end": 2021,
            "experiment": "Pacemaker experiment with SST anomalies restored to observations in the tropical Atlantic",
            "experiment_id": "tbi-pace-A-anom",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-hist-ctrl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "tbi-pace-A-clim-mod": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Pacemaker experiment with SST restoring in the tropical Atlantic Ocean (10 S-10 N). The restoring target is the model SST climatology.",
            "end": 1199,
            "experiment": "Pacemaker experiment with SST restored to model climatology in the tropical Atlantic Ocean",
            "experiment_id": "tbi-pace-A-clim-mod",
            "min_number_yrs_per_sim": 200,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1000,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 3
        },
        "tbi-pace-I": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Pacemaker experiment with SST restoring in the tropical Indian Ocean (15 S-15 N). The restoring target is the observed SST.",
            "end": 2021,
            "experiment": "Pacemaker experiment with SST anomalies restored to observations in the tropical Indian Ocean",
            "experiment_id": "tbi-pace-I",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-hist-ctrl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 2
        },
        "tbi-pace-I-anom": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Pacemaker experiment with SST restoring in the tropical Indian Ocean (15 S-15 N). The restoring target is the model SST climatology plus observed SST anomalies.",
            "end": 2021,
            "experiment": "Pacemaker experiment with SST anomalies restored to observations in the tropical Indian Ocean",
            "experiment_id": "tbi-pace-I-anom",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-hist-ctrl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 1
        },
        "tbi-pace-I-clim-mod": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Pacemaker experiment with SST restoring in the tropical Indian Ocean (15 S-15 N). The restoring target is the model SST climatology.",
            "end": 1199,
            "experiment": "Pacemaker experiment with SST restored to model climatology in the tropical Indian Ocean",
            "experiment_id": "tbi-pace-I-clim-mod",
            "min_number_yrs_per_sim": 200,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1000,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 3
        },
        "tbi-pace-IP-clim-mod": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Pacemaker experiment with SST restoring in the tropical Indo-Pacific region (15 S-15 N). The restoring target is the model SST climatology.",
            "end": 1199,
            "experiment": "Pacemaker experiment with SST restored to model climatology in the tropical Indian and Pacific oceans",
            "experiment_id": "tbi-pace-IP-clim-mod",
            "min_number_yrs_per_sim": 200,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-piControl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1000,
            "sub_experiment_id": [
                "none"
            ],
            "tier": 3
        },
        "tbi-pace-P": {
            "activity_id": [
                "TBIMIP"
            ],
            "additional_allowed_model_components": [
                "AER",
                "CHEM",
                "BGC"
            ],
            "description": "Pacemaker experiment with SST restoring in the tropical Pacific Ocean (15 S-15 N). The restoring target is the observed SST.",
            "end": 2021,
            "experiment": "Pacemaker experiment with SST anomalies restored to observations in the tropical Pacific",
            "experiment_id": "tbi-pace-P",
            "min_number_yrs_per_sim": 39,
            "parent_activity_id": [
                "TBIMIP"
            ],
            "parent_experiment_id": [
                "tbi-hist-ctrl"
            ],
            "required_model_components": [
                "AOGCM"
            ],
            "start": 1982,
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}