Function parseGrib2Section4

Returns {
    coordinateValues: number;
    length: number;
    productDefinitionTemplate: { code: number; definition: string };
    sectionName: "Product Definition Section";
    sectionNumber: number;
    values: {
        backgroundGenProcess: number;
        forecastGenProcess: { code: number; value: string };
        forecastTime: { code: number; value: Date };
        genProcessType: { code: number; value: string };
        hoursAfterRefTime: number;
        minAfterRefTime: number;
        paramater: {
            abbrev: string;
            category: string;
            parameter: string;
            units: string;
        };
        parameterCategory: number;
        parameterNumber: number;
        surface1: { scale: number; type: string; unit: string; value: number };
        surface1Scale: number;
        surface1Type: number;
        surface1Value: number;
        surface2: { scale: number; type: string; unit: string; value: number };
        surface2Scale: number;
        surface2Type: number;
        surface2Value: number;
        unitOfTimeRangeIndicator: { code: number; value: string };
    };
}

• Parsed Product Definition Information

• coordinateValues: number

  Number of coordinate values after template

• length: number

  Length of GRIB section

• productDefinitionTemplate: { code: number; definition: string }

  Product definition template number Table 4.0

• sectionName: "Product Definition Section"

  Name of Grib section

• sectionNumber: number

  Number of GRIB section

• values: {
      backgroundGenProcess: number;
      forecastGenProcess: { code: number; value: string };
      forecastTime: { code: number; value: Date };
      genProcessType: { code: number; value: string };
      hoursAfterRefTime: number;
      minAfterRefTime: number;
      paramater: {
          abbrev: string;
          category: string;
          parameter: string;
          units: string;
      };
      parameterCategory: number;
      parameterNumber: number;
      surface1: { scale: number; type: string; unit: string; value: number };
      surface1Scale: number;
      surface1Type: number;
      surface1Value: number;
      surface2: { scale: number; type: string; unit: string; value: number };
      surface2Scale: number;
      surface2Type: number;
      surface2Value: number;
      unitOfTimeRangeIndicator: { code: number; value: string };
  }

  Product definition

  • backgroundGenProcess: number

    Background generating process identifier (defined by originating centre)

  • forecastGenProcess: { code: number; value: string }

    Analysis or forecast generating process identifier (see Code ON388 Table A)

  • forecastTime: { code: number; value: Date }

    Forecast time in units defined by octet 18

  • genProcessType: { code: number; value: string }

    Type of generating process (see Code Table 4.3)

  • hoursAfterRefTime: number

    Hours after reference time data cutoff (see Notes)

  • minAfterRefTime: number

    Minutes after reference time data cutoff (see Notes)

  • paramater: { abbrev: string; category: string; parameter: string; units: string }

    Paramater

  • parameterCategory: number

    Parameter category (see Code Table 4.1)

  • parameterNumber: number

    Parameter number (see Code Table 4.2)

  • surface1: { scale: number; type: string; unit: string; value: number }

    First fixed surface

  • surface1Scale: number

    Scale factor of first fixed surface

  • surface1Type: number

    Type of first fixed surface (see Code Table 4.5)

  • surface1Value: number

    Scaled value of first fixed surface

  • surface2: { scale: number; type: string; unit: string; value: number }

    Second fixed surface

  • surface2Scale: number

    Scale factor of second fixed surface

  • surface2Type: number

    Type of second fixed surface (see Code Table 4.5)

  • surface2Value: number

    Scaled value of second fixed surface

  • unitOfTimeRangeIndicator: { code: number; value: string }

    Indicator of unit of time range (see Code Table 4.4)