GRIB2 - GRID TEMPLATE 5.0
Grid point data - simple packing
Created 09/12/2005

Octet | Contents
--- | ---
12-15 | reference value (R) (IEEE 32-bit floating-point value)
16-17 | Binary scale factor (E)
18-19 | Decimal scale factor (D)
20 | Number of bits used for each packed value for simple packing, or for each group reference value for complex packing or spatial differencing
21 | Type of original field values (see Code Table 5.1)