| Octet No. | Contents |
|---|---|
| 15-18 | NT―number of time steps |
| 19 |
Unit of offset from reference time (see Code table 4.4) |
| 20-23 |
Offset from reference of first
time (negative value when first bit set) |
| 24 |
Type of time increment (see Code table 4.11) |
| 25 | Unit of time increment (see Code table 4.4) |
| 26-29 |
Time increment (negative value
when first bit set) 30-36 Last date/time |
| 30-31 | Year |
| 32 |
Month |
| 33 |
Day |
| 34 |
Hour |
| 35 |
Minute |
| 36 |
Second |
| 37-38 |
Number of vertical points |
| 39 |
Physical meaning of vertical coordinate (see Code table 3.15) |
| 40 |
Vertical dimension coordinate values definition (see Code table 3.21) |
| 41-42 |
NC ― number of coefficients or values used to specify vertical coordinates |
| 43-(42+NCx4) | Coefficients to define vertical
dimension coordinate values in functional form, or the explicit
coordinate values (IEEE 32-bit floating-point values) |