| Time ( instantaneous ) | |||||
|---|---|---|---|---|---|
| Start of forecast ( section 1 ) | |||||
Octets reforecast | Octets real time | Fixed values to be used by all the partners | Example | ||
| 12 | 12 | Significance of Reference Time | =1 | Start of forecast | = 1 |
| 13-14 | 13-14 | Year (four digits) | year of start of forecast | = 2012 | |
| 15 | 15 | Month | month of start of forecast | = 01 | |
| 16 | 16 | Day | day of start of forecast | = 01 | |
| 17 | 17 | Hour | hour of start of forecast | = 00 | |
| Accumulation ( section 4 ) | |||||
| 18 | 18 | Indicator of unit of time range | = 1 | Hour | = 1 |
| 19-22 | 19-22 | Forecast time | = 0 | = 0 | |
| 45-46 | 38-39 | year of end of overall time interval |
End of accumulated 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 | = 4 6 hourly fields used in average | ||
| 53-56 | 46-49 | total number of data values missing in statistical process | = 0 | = 0 | |
| 57 | 50 | Statistical process used to calculate the processed field from the field at each time increment during the time range | = 1 | Accumulated | = 0 |
| 58 | 51 | Type of time increment between successive fields used in the statistical processing | = 2 | 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 | = 1 | Hour | = 1 |
| 60-63 | 53-56 | Length of the time range over which statistical processing is done, in units defined by the previous octet | Time step (in hour) at the end of the accumulation | = 48 | |
| 64 | 57 | Indicator of unit of time for the increment between the successive fields used | = 255 | Missing | = 255 |
| 65-68 | 58-61 | Time increment between successive fields, in units defined by the previous octet | = 0 | Time frequency used to compute the daily mean | = 0 6 hourly fields used in average |
Time ( reforecast ) section 4, template 4.61 | ||
|---|---|---|
| Example | ||
| 38-39 | Year of model version | 2013 |
| 40 | Month of model version | 01 |
| 41 | Day of model version | 01 |
| 42 | Hour of model version | 00 |
| 43 | minute of model version | 00 |
| 44 | second of model version | 00 |
The example of reforecast with the example of daily average define together a reforecast of the daily average valid for 2/1/2012 computed with a model version operational on the 1/1/2013.
For real time forecast the template to be used is 4.11 and there isn't any information regarding the date and time of the model version.