{
  "_id": "4.2.0.20",
  "name": "Code table 4.2 - Parameter number by product discipline and parameter category # Product discipline 0 - Meteorological products, parameter category 20: atmospheric chemical constituents",
  "values": [
    {
      "codeentry": "Mass density (concentration)",
      "codefigure": "0",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-3"
    },
    {
      "codeentry": "Column-integrated mass density",
      "codefigure": "1",
      "flag_value": "",
      "note": "(see Note 1)",
      "status": "Operational",
      "unit": "kg m-2"
    },
    {
      "codeentry": "Mass mixing ratio (mass fraction in air)",
      "codefigure": "2",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg/kg"
    },
    {
      "codeentry": "Atmosphere emission mass flux",
      "codefigure": "3",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Atmosphere net production mass flux",
      "codefigure": "4",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Atmosphere net production and emission mass flux",
      "codefigure": "5",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Surface dry deposition mass flux",
      "codefigure": "6",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Surface wet deposition mass flux",
      "codefigure": "7",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Atmosphere re-emission mass flux",
      "codefigure": "8",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Wet deposition by large-scale precipitation mass flux",
      "codefigure": "9",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Wet deposition by convective precipitation mass flux",
      "codefigure": "10",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Sedimentation mass flux",
      "codefigure": "11",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Dry deposition mass flux",
      "codefigure": "12",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Transfer from hydrophobic to hydrophilic",
      "codefigure": "13",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg kg-1 s-1"
    },
    {
      "codeentry": "Transfer from SO2 (sulphur dioxide) to SO4 (sulphate)",
      "codefigure": "14",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg kg-1 s-1"
    },
    {
      "codeentry": "Dry deposition velocity",
      "codefigure": "15",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "m/s"
    },
    {
      "codeentry": "Mass mixing ratio with respect to dry air",
      "codefigure": "16",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg/kg"
    },
    {
      "codeentry": "Mass mixing ratio with respect to wet air",
      "codefigure": "17",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg/kg"
    },
    {
      "codeentry": "Potential of hydrogen (pH)",
      "codefigure": "18",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "pH"
    },
    {
      "codeentry": "Loss rate due to reaction with hydroxyl radical (OH)",
      "codefigure": "19",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg kg-1 s-1"
    },
    {
      "codeentry": "Photolysis rate",
      "codefigure": "20",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "s-1"
    },
    {
      "codeentry": "Emisssion potential",
      "codefigure": "21",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Reserved",
      "codefigure": "22-49",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": ""
    },
    {
      "codeentry": "Amount in atmosphere",
      "codefigure": "50",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "mol"
    },
    {
      "codeentry": "Concentration in air",
      "codefigure": "51",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "mol m-3"
    },
    {
      "codeentry": "Volume mixing ratio (fraction in air)",
      "codefigure": "52",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "mol/mol"
    },
    {
      "codeentry": "Chemical gross production rate of concentration",
      "codefigure": "53",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "mol m-3 s-1"
    },
    {
      "codeentry": "Chemical gross destruction rate of concentration",
      "codefigure": "54",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "mol m-3 s-1"
    },
    {
      "codeentry": "Surface flux",
      "codefigure": "55",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "mol m-2 s-1"
    },
    {
      "codeentry": "Changes of amount in atmosphere",
      "codefigure": "56",
      "flag_value": "",
      "note": "(see Note 1)",
      "status": "Operational",
      "unit": "mol/s"
    },
    {
      "codeentry": "Total yearly average burden of the atmosphere",
      "codefigure": "57",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "mol"
    },
    {
      "codeentry": "Total yearly averaged atmospheric loss",
      "codefigure": "58",
      "flag_value": "",
      "note": "(see Note 1)",
      "status": "Operational",
      "unit": "mol/s"
    },
    {
      "codeentry": "Aerosol number concentration",
      "codefigure": "59",
      "flag_value": "",
      "note": "(see Note 2)",
      "status": "Operational",
      "unit": "m-3"
    },
    {
      "codeentry": "Aerosol specific number concentration",
      "codefigure": "60",
      "flag_value": "",
      "note": "(see Note 2)",
      "status": "Operational",
      "unit": "kg-1"
    },
    {
      "codeentry": "Maximum of mass density in layer",
      "codefigure": "61",
      "flag_value": "",
      "note": "(see Note 1)",
      "status": "Operational",
      "unit": "kg m-3"
    },
    {
      "codeentry": "Height of maximum mass density",
      "codefigure": "62",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "m"
    },
    {
      "codeentry": "Column-averaged mass density in layer",
      "codefigure": "63",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-3"
    },
    {
      "codeentry": "Mole fraction with respect to dry air",
      "codefigure": "64",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "mol/mol"
    },
    {
      "codeentry": "Mole fraction with respect to wet air",
      "codefigure": "65",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "mol/mol"
    },
    {
      "codeentry": "Column-integrated in-cloud scavenging rate by precipitation",
      "codefigure": "66",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Column-integrated below-cloud scavenging rate by precipitation",
      "codefigure": "67",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Column-integrated release rate from evaporating precipitation",
      "codefigure": "68",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Column-integrated in-cloud scavenging rate by large-scale precipitation",
      "codefigure": "69",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Column-integrated below-cloud scavenging rate by large-scale precipitation",
      "codefigure": "70",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Column-integrated release rate from evaporating large-scale precipitation",
      "codefigure": "71",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Column-integrated in-cloud scavenging rate by convective precipitation",
      "codefigure": "72",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Column-integrated below-cloud scavenging rate by convective precipitation",
      "codefigure": "73",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Column-integrated release rate from evaporating convective precipitation",
      "codefigure": "74",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Wildfire flux",
      "codefigure": "75",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Emission rate",
      "codefigure": "76",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg kg-1 s-1"
    },
    {
      "codeentry": "Surface emission flux",
      "codefigure": "77",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Column integrated eastward mass flux",
      "codefigure": "78",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-1 s-1"
    },
    {
      "codeentry": "Column integrated northward mass flux",
      "codefigure": "79",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-1 s-1"
    },
    {
      "codeentry": "Column integrated divergence of mass flux",
      "codefigure": "80",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Column integrated net source",
      "codefigure": "81",
      "flag_value": "",
      "note": "(see Note 3)",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Sink mass flux",
      "codefigure": "82",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Source mass flux",
      "codefigure": "83",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "kg m-2 s-1"
    },
    {
      "codeentry": "Volume-mean total column mixing ratio",
      "codefigure": "84",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "mol mol-1"
    },
    {
      "codeentry": "Reserved",
      "codefigure": "85-99",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": ""
    },
    {
      "codeentry": "Surface area density (aerosol)",
      "codefigure": "100",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "m-1"
    },
    {
      "codeentry": "Vertical visual range",
      "codefigure": "101",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "m"
    },
    {
      "codeentry": "Aerosol optical thickness",
      "codefigure": "102",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "Numeric"
    },
    {
      "codeentry": "Single scattering albedo",
      "codefigure": "103",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "Numeric"
    },
    {
      "codeentry": "Asymmetry factor",
      "codefigure": "104",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "Numeric"
    },
    {
      "codeentry": "Aerosol extinction coefficient",
      "codefigure": "105",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "m-1"
    },
    {
      "codeentry": "Aerosol absorption coefficient",
      "codefigure": "106",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "m-1"
    },
    {
      "codeentry": "Aerosol lidar backscatter from satellite",
      "codefigure": "107",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "m-1 sr-1"
    },
    {
      "codeentry": "Aerosol lidar backscatter from the ground",
      "codefigure": "108",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "m-1 sr-1"
    },
    {
      "codeentry": "Aerosol lidar extinction from satellite",
      "codefigure": "109",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "m-1"
    },
    {
      "codeentry": "Aerosol lidar extinction from the ground",
      "codefigure": "110",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "m-1"
    },
    {
      "codeentry": "Angstrom exponent",
      "codefigure": "111",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "Numeric"
    },
    {
      "codeentry": "Absorption aerosol optical thickness",
      "codefigure": "112",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "Numeric"
    },
    {
      "codeentry": "Aerosol backscatter coefficient",
      "codefigure": "113",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": "m-1 sr-1"
    },
    {
      "codeentry": "Reserved",
      "codefigure": "114-191",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": ""
    },
    {
      "codeentry": "Reserved for local use",
      "codefigure": "192-254",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": ""
    },
    {
      "codeentry": "Missing",
      "codefigure": "255",
      "flag_value": "",
      "note": "",
      "status": "Operational",
      "unit": ""
    }
  ]
}