This example represents a daily average valid on 2 January 2012 of a field produced by a real-time forecast started on 20120101 00Z. In this example, where the field is produced 6-hourly, the daily average valid on 20120102 is the average of steps 24, 30, 36 and 42.
- 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 ( daily average ) | ||||||
|---|---|---|---|---|---|---|
| Start of forecast ( section 1 ) | ||||||
Octets reforecast | Octets real time | Fixed values to be used by all the partners | Example | values | meaning of values | |
| 12 | 12 | Significance of Reference Time | =1 | Start of forecast | = 1 | |
| 13-14 | 13-14 | Year (four digits) | 2012 | year of start of forecast | = 2012||
| 15 | 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||
| Daily average ( section 4 ) | ||||||
| 18 | 18 | Indicator of unit of time range | = 11 | Hour | = 1 | |
| 19-22 | 19-22 | Forecast time | 24 | Start of forecast + forecast time = start of average period | = 24||
| 45-46 | 38-39 | year of end of overall time interval | 2012 |
End of average period | = 2012 | |
| 47 | 40 | month of end of overall time interval | = | 01 | ||
| 48 | 41 | day of end of overall time interval | = | 03 | ||
| 49 | 42 | hour of end of overall time interval | = | 00 | ||
| 52 | 45 | number of time ranges | =1 | Only one time statistics applied (average) | = 1||
| 53-56 | 46-49 | total number of data values missing in statistical process | = 00 | = 0 | ||
| 57 | 50 | Statistical process used to calculate the processed field from the field at each time increment during the time range | = 00 | Average | = 0 | |
| 58 | 51 | Type of time increment between successive fields used in the statistical processing | = 22 | Successive times processed have same start time of forecast, forecast time is incremented | = 2||
| 59 | 52 | Indicator of unit of time for time range over which statistical processing is done | = 1111 | 6-hourly | = 11 | |
| 60-63 | 53-56 | Length of the time range over which statistical processing is done, in units defined by the previous octet | = 44 | Daily average | = 4||
| 64 | 57 | Indicator of unit of time for the increment between the successive fields used | = 11 | 6-hourly | = 11||
| 65-68 | 58-61 | Time increment between successive fields, in units defined by the previous octet | 1 | Time frequency used to compute the daily mean | In the example, 1 means that 6-hourly outputs have been used to compute the | 6 hourly fields used in average |