...
Time ( accumulated ) | ||||||
---|---|---|---|---|---|---|
Start of forecast ( section 1 ) | ||||||
Octets reforecast | Octets real time | Values | Meaning of values | 12Grib_api key | ||
12 | Significance of Reference Time | 1 | Start of forecast13-14 | |||
13-14 | Year (four digits) | 2012 | year of start of forecast15 | dataDate=20120101 dataTime=0 | ||
15 | Month | 01 | month of start of forecast16 | |||
16 | Day | 01 | day of start of forecast17 | |||
17 | Hour | 00 | hour of start of forecast | |||
Accumulation ( section 4 e.g. template 4.11 ) | ||||||
18 | 18 | Indicator of unit of time range | 1 | Hour | 19-22||
19-22 | Forecast time | 0 | Accumulation starts at step=0 | 45-46startStep=0 | ||
38-39 | year of end of overall time interval | 2012 |
End of accumulated period, 20120103 06Z | 47
endStep=54
| ||
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 | 06 | |||
52 | 45 | number of time ranges | 1 | Only one type of time statistics used (accumulation) | 53-56||
46-49 | total number of data values missing in statistical process | 0 | 57 | |||
50 | Statistical process used to calculate the processed field from the field at each time increment during the time range | 1 | Accumulation | 58stepType=accum | ||
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 | 59|||
52 | Indicator of unit of time for time range over which statistical processing is done | 1 | Hour | 60-63|||
53-56 | Length of the time range over which statistical processing is done, in units defined by the previous octet | 54 | Time step (in hour) at the end of the accumulation from start of forecast | 64
| ||
57 | Indicator of unit of time for the increment between the successive fields used | 255 | Missing | 65-68|||
58-61 | Time increment between successive fields, in units defined by the previous octet | 255 | Missing0 | 0 |
Examples of grib2 headers: