{
  "_id": "4.171",
  "name": "Product definition template 4.171 - Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval for atmospheric chemical constituents with source or sink",
  "values": [
    {
      "CONTENTS": "55-66   Specification of the outermost (or only) time range over which statistical processing is done",
      "_id": null,
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "67-nn   These octets are included only if n > 1, where nn = 54 + 12 x n",
      "_id": null,
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Parameter category",
      "_id": "10",
      "note": "4.1",
      "status": "Operational"
    },
    {
      "CONTENTS": "Parameter number",
      "_id": "11",
      "note": "4.2",
      "status": "Operational"
    },
    {
      "CONTENTS": "Atmospheric chemical constituent type",
      "_id": "12-13",
      "note": "4.230",
      "status": "Operational"
    },
    {
      "CONTENTS": "Source or sink",
      "_id": "14",
      "note": "4.238",
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of generating process",
      "_id": "15",
      "note": "4.3",
      "status": "Operational"
    },
    {
      "CONTENTS": "Background generating process identifier (defined by originating centre)",
      "_id": "16",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Forecast generating process identifier (defined by originating centre)",
      "_id": "17",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Hours after reference time of data cut-off",
      "_id": "18-19",
      "note": "(see Note 1)",
      "status": "Operational"
    },
    {
      "CONTENTS": "Minutes after reference time of data cut-off",
      "_id": "20",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Indicator of unit of time range",
      "_id": "21",
      "note": "4.4",
      "status": "Operational"
    },
    {
      "CONTENTS": "Forecast time in units defined by octet 21",
      "_id": "22-25",
      "note": "(see Note 2)",
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of first fixed surface",
      "_id": "26",
      "note": "4.5",
      "status": "Operational"
    },
    {
      "CONTENTS": "Scale factor of first fixed surface",
      "_id": "27",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Scaled value of first fixed surface",
      "_id": "28-31",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of second fixed surface",
      "_id": "32",
      "note": "4.5",
      "status": "Operational"
    },
    {
      "CONTENTS": "Scale factor of second fixed surface",
      "_id": "33",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Scaled value of second fixed surface",
      "_id": "34-37",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Derived forecast",
      "_id": "38",
      "note": "4.7",
      "status": "Operational"
    },
    {
      "CONTENTS": "Number of forecasts in ensemble",
      "_id": "39-42",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Year of end of overall time interval",
      "_id": "43-44",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Month of end of overall time interval",
      "_id": "45",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Day of end of overall time interval",
      "_id": "46",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Hour of end of overall time interval",
      "_id": "47",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Minute of end of overall time interval",
      "_id": "48",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Second of end of overall time interval",
      "_id": "49",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "n - number of time range specifications describing the time intervals used to calculate the statistically processed field",
      "_id": "50",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Total number of data values missing in statistical process",
      "_id": "51-54",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Statistical process used to calculate the processed field from the field at each time increment during the time range",
      "_id": "55",
      "note": "4.10",
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of time increment between successive fields used in the statistical processing",
      "_id": "56",
      "note": "4.11",
      "status": "Operational"
    },
    {
      "CONTENTS": "Indicator of unit of time for time range over which statistical processing is done",
      "_id": "57",
      "note": "4.4",
      "status": "Operational"
    },
    {
      "CONTENTS": "Length of the time range over which statistical processing is done, in units defined by the previous octet",
      "_id": "58-61",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Indicator of unit of time for the increment between the successive fields used",
      "_id": "62",
      "note": "4.4",
      "status": "Operational"
    },
    {
      "CONTENTS": "Time increment between successive fields, in units defined by the previous octet",
      "_id": "63-66",
      "note": "(see Notes 3 and 4)",
      "status": "Operational"
    },
    {
      "CONTENTS": "As octets 55 to 66, next innermost step of processing",
      "_id": "67-78",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Additional time range specifications, included in accordance with the value of n. Contents as octets 55 to 66, repeated as necessary",
      "_id": "79-nn",
      "note": null,
      "status": "Operational"
    }
  ]
}