| Octet No. | Contents |
|---|---|
| 10 |
Parameter category (see Code
table 4.1) |
| 11 |
Parameter number (see Code table
4.2) |
| 12 |
Type of generating process (see
Code table 4.3) |
| 13 |
Background generating process identifier (defined by originating centre) |
| 14 |
Forecast generating process identifier (defined by originating centre) |
| 15-16 |
Hours after reference time of data cut-off (see Note 1) |
| 17 |
Minutes after reference time of data cut-off |
| 18 |
Indicator of unit of time range
(see Code table 4.4) |
| 19-22 |
Forecast time in units defined by octet 31 (see Note 2) |
| 23 |
Type of first fixed surface
(see Code table 4.5) |
| 24 |
Scale factor of first fixed surface |
| 25-28 |
Scaled value of first fixed surface |
| 29 |
Type of second fixed surface
(see Code table 4.5) |
| 30 |
Scale factor of second fixed surface |
| 31-34 |
Scaled value of second fixed surface |
| 35-36 |
Total number of quantiles q |
| 37-38 |
Quantile value (between 0 and q) |
| 39-40 |
Year of end of overall time interval |
| 41 |
Month of end of overall time interval |
| 42 |
Day of end of overall time interval |
| 43 |
Hour of end of overall time interval |
| 44 |
Minute of end of overall time interval |
| 45 |
Second of end of overall time interval |
| 46 |
n - number of time range specifications describing the time intervals
used to calculate the statistically processed field |
| 47-50 |
Total number of data values missing in statistical process |
| 51-62 Specification of the outermost (or only) time range over which statistical processing is done | |
| 51 |
Statistical process used to calculate the processed field from the field at
each time increment during the time range (see Code table 4.10) |
| 52 |
Type of time increment between successive fields used in the statistical processing
(see Code table 4.11) |
| 53 |
Indicator of unit of time for time range over which statistical processing is done
(see Code table 4.4) |
| 54-57 |
Length of the time range over which statistical processing is done,
in units defined by the previous octet |
| 58 |
Indicator of unit of time for the increment between the successive fields used
(see Code table 4.4) |
| 59-62 |
Time increment between successive fields, in units defined by the
previous octet (see Notes 3) |
| 63-nn These octets are included only if n > 1, where nn = 50 + 12 x n |
|
| 63-74 |
As octets 51 to 62, next innermost step of processing |
| 75-nn |
Additional time range specifications, included in accordance with the value of n. Contents as octets 51 to 62, repeated as necessary |
| Notes: 1.) Hours greater than 65534 will be coded as 65534 2.) The reference time in section 1 and the forecast time together define the beginning of the overall time interval. 3.) An increment of zero means that the statistical processing is the result of a continuous (or near-continuous) process, not the processing of a number of discrete samples. Examples of such continuous processes are the temperatures measured by analogue maximum and minimum thermometers or thermographs, and the rainfall measured by a rain gauge. |