{
  "_id": "4.68",
  "name": "Product definition template 4.68 - individual ensemble forecast, control and perturbed, at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval for atmospheric chemical constituents based on a distribution function",
  "values": [
    {
      "CONTENTS": "Repeat the following 5 octets for the number of function parameters (n = 1, Np), if Np > 0",
      "_id": null,
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "(59+5Np)-(70+5Np)   Specification of the outermost (or only) time range over which statistical processing is done",
      "_id": null,
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "(71+5Np)-nn   These octets are included only if n > 1, where nn = (58+5Np) + 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": "Number of modes (N) of distribution",
      "_id": "14-15",
      "note": "(see Note 1)",
      "status": "Operational"
    },
    {
      "CONTENTS": "Mode number (l)",
      "_id": "16-17",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of distribution function",
      "_id": "18-19",
      "note": "4.240",
      "status": "Operational"
    },
    {
      "CONTENTS": "Number of following function parameters (Np), defined by type given in octets 18-19 (Type of distribution function)",
      "_id": "20",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "List of scale factor of fixed distribution function parameter (p1-pNp), defined by type of distribution in octets 18-19",
      "_id": "21+5(n-1)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of generating process",
      "_id": "21+5Np",
      "note": "4.3",
      "status": "Operational"
    },
    {
      "CONTENTS": "List of scaled value of fixed distribution function parameter (p1-pNp), defined by type of distribution in octets 18-19",
      "_id": "(22+5(n-1))-(25+5(n-1))",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Background generating process identifier (defined by originating centre)",
      "_id": "22+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Analysis or forecast generating process identifier (defined by originating centre)",
      "_id": "23+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Hours of observational data cut-off after reference time",
      "_id": "(24+5Np)-(25+5Np)",
      "note": "(see Note 3)",
      "status": "Operational"
    },
    {
      "CONTENTS": "Minutes of observational data cut-off after reference time",
      "_id": "26+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Indicator of unit of time range",
      "_id": "27+5Np",
      "note": "4.4",
      "status": "Operational"
    },
    {
      "CONTENTS": "Forecast time in units defined by the previous octet",
      "_id": "(28+5Np)-(31+5Np)",
      "note": "(see Note 4)",
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of first fixed surface",
      "_id": "32+5Np",
      "note": "4.5",
      "status": "Operational"
    },
    {
      "CONTENTS": "Scale factor of first fixed surface",
      "_id": "33+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Scaled value of first fixed surface",
      "_id": "(34+5Np)-(37+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of second fixed surface",
      "_id": "38+5Np",
      "note": "4.5",
      "status": "Operational"
    },
    {
      "CONTENTS": "Scale factor of second fixed surface",
      "_id": "39+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Scaled value of second fixed surface",
      "_id": "(40+5Np)-(43+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of ensemble forecast",
      "_id": "44+5Np",
      "note": "4.6",
      "status": "Operational"
    },
    {
      "CONTENTS": "Perturbation number",
      "_id": "45+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Number of forecasts in ensemble",
      "_id": "46+5Np",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Year - Time of end of overall time interval",
      "_id": "(47+5Np)-(48+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Month - Time of end of overall time interval",
      "_id": "(49+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Day - Time of end of overall time interval",
      "_id": "(50+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Hour - Time of end of overall time interval",
      "_id": "(51+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Minute - Time of end of overall time interval",
      "_id": "(52+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Second - Time of end of overall time interval",
      "_id": "(53+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "n - number of time range specifications describing the time intervals used to calculate the statistically processed field",
      "_id": "(54+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Total number of data values missing in statistical process",
      "_id": "(55+5Np)-(58+5Np)",
      "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": "(59+5Np)",
      "note": "4.10",
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of time increment between successive fields used in the statistical processing",
      "_id": "(60+5Np)",
      "note": "4.11",
      "status": "Operational"
    },
    {
      "CONTENTS": "Indicator of unit of time for time range over which statistical processing is done",
      "_id": "(61+5Np)",
      "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": "(62+5Np)-(65+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Indicator of unit of time for the increment between the successive fields used",
      "_id": "(66+5Np)",
      "note": "4.4",
      "status": "Operational"
    },
    {
      "CONTENTS": "Time increment between successive fields, in units defined by the previous octet",
      "_id": "(67+5Np)-(70+5Np)",
      "note": "(see Notes 5 and 6)",
      "status": "Operational"
    },
    {
      "CONTENTS": "As octets (59+5Np) to (70+5Np), next innermost step of processing",
      "_id": "(71+5Np)-(82+5Np)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Additional time range specifications, included in accordance with the value of n.  Contents as octets (59+5Np) to (70+5Np), repeated as necessary",
      "_id": "(83+5Np)-nn",
      "note": null,
      "status": "Operational"
    }
  ]
}