Function spectralSimpleUnpacking

Parameters

• reader: Reader

  The raw data to convert
• drs: {
      dataRepresentation:
          | {
              binaryScaleFactor: number;
              decimalScaleFactor: number;
              numberOfBits: number;
              originalType: { code: number; description: string };
              referenceValue: number;
          }
          | {
              binaryScaleFactor: number;
              decimalScaleFactor: number;
              Js: number;
              Ks: number;
              Ms: number;
              numberOfBits: number;
              P: number;
              precision: { code: number; description: string };
              referenceValue: number;
              Ts: number;
          }
          | {
              binaryScaleFactor: number;
              decimalScaleFactor: number;
              numberOfBits: number;
              realPartCoefficientType: number;
              referenceValue: number;
          };
      dataRepresentationTemplate: { code: number; description: string };
      length: number;
      numberOfDataPoints: number;
      sectionName: "Data Representation Section";
      sectionNumber: number;
  }

  The data representation section

  • dataRepresentation:
        | {
            binaryScaleFactor: number;
            decimalScaleFactor: number;
            numberOfBits: number;
            originalType: { code: number; description: string };
            referenceValue: number;
        }
        | {
            binaryScaleFactor: number;
            decimalScaleFactor: number;
            Js: number;
            Ks: number;
            Ms: number;
            numberOfBits: number;
            P: number;
            precision: { code: number; description: string };
            referenceValue: number;
            Ts: number;
        }
        | {
            binaryScaleFactor: number;
            decimalScaleFactor: number;
            numberOfBits: number;
            realPartCoefficientType: number;
            referenceValue: number;
        }

    Data representation built using a template

  • dataRepresentationTemplate: { code: number; description: string }

    Data representation template number (See Table 5.0)

  • length: number

    Length of GRIB section

  • numberOfDataPoints: number

    Number of data points where one or more values are specified in Section 7 when a bit map is present, total number of data points when a bit map is absent.

  • sectionName: "Data Representation Section"

    Name of Grib section

  • sectionNumber: number

    Number of GRIB section