This example describes an instantaneous field valid on 20120103 00Z from a forecast starting on 20120101 00Z (time step=48 hours) .
- In bold, the values are fixed. They are meant to be used by all partners
- In green, these are the values for the example.
| Time ( instantaneous ) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Start of forecast ( section 1 ) | |||||||||
Octetsreforecast | Octets real time | Fixed values to be used by all the partners | Example | 12values | Meaning of values | Grib_api values | |||
| 12 | Significance of Reference Time | =1 | Start of forecast | = 1 | |||||
| 13-14 | 13-14 | Year (four digits) | 2012 | year of start of forecast |
dataDate= | 20121520120101 dataTime=0 | |||
| 15 | Month | 01 | month of start of forecast | = 01 | |||||
| 16 | 16 | Day | 01 | day of start of forecast | = 01 | ||||
| 17 | 17 | Hour | 00 | hour of start of forecast | = 00 | ||||
| section 4 e.g. template 4.1 | |||||||||
| 18 | 18 | Indicator of unit of time range | = 11 | Hour | = 1 | 19-22||||
| 19-22 | Forecast time | 48 | Forecast step | stepType=instant, step=48 | |||||
Examples of grib2 headers: