{
  "_id": "4.141",
  "name": "Product definition template 4.141 - Reforecast at a horizontal level or in a horizontal layer at a point in time for wave 2D spectra with explicit list of frequencies and directions",
  "values": [
    {
      "CONTENTS": "The following entry of 4 octets is repeated ND times. (ND is defined in octets 14-15)",
      "_id": null,
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "The following entry of 4 octets is repeated NF times. (NF is defined in octets 18-19)",
      "_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": "Wave direction number",
      "_id": "12-13",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Number of wave directions (ND)",
      "_id": "14-15",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Wave frequency number",
      "_id": "16-17",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Number of wave frequencies (NF)",
      "_id": "18-19",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Type of generating process",
      "_id": "20",
      "note": "4.3",
      "status": "Operational"
    },
    {
      "CONTENTS": "Background generating process identifier (defined by originating centre)",
      "_id": "21",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Analysis or forecast generating process identifier (defined by originating centre)",
      "_id": "22",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Hours of observational data cut-off after reference time",
      "_id": "23-24",
      "note": "(see Note 1)",
      "status": "Operational"
    },
    {
      "CONTENTS": "Minutes of observational data cut-off after reference time",
      "_id": "25",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Indicator of unit of time range",
      "_id": "26",
      "note": "4.4",
      "status": "Operational"
    },
    {
      "CONTENTS": "Forecast time in units defined by previous octet",
      "_id": "27-30",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Year of model version date",
      "_id": "31-32",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Month of model version date",
      "_id": "33",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Day of model version date",
      "_id": "34",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Hour of model version date",
      "_id": "35",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Minute of model version date",
      "_id": "36",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Second of model version date",
      "_id": "37",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Scale factor of wave directions",
      "_id": "38",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Scaled values of wave directions",
      "_id": "(39 + (ND-1)*4) - (42 + (ND-1)*4)",
      "note": null,
      "status": "Operational"
    },
    {
      "CONTENTS": "Scale factor of wave frequencies",
      "_id": "43 + (ND-1)*4",
      "note": "(see Note 2)",
      "status": "Operational"
    },
    {
      "CONTENTS": "Scaled values of wave frequencies",
      "_id": "(44 + (ND-1)*4 + (NF-1)*4) - (47 + (ND-1)*4 + (NF-1)*4)",
      "note": "(see Note 3)",
      "status": "Operational"
    }
  ]
}