| Octet Number |
Description |
Note |
Status |
| None |
The next two entries are repeated NA times na=0:NA - can be 0 times if no parameters are necessary |
None |
Operational |
| None |
End of repeated NA sequence |
None |
Operational |
| None |
The next three entries are repeated NR times nr=1:NR |
None |
Operational |
| None |
End of repeated NR sequence |
None |
Operational |
| 10 |
Parameter category |
Code/Flag Table 4.1 |
Operational |
| 11 |
Parameter number |
Code/Flag Table 4.2 |
Operational |
| 12 |
Type of generating process |
Code/Flag Table 4.3 |
Operational |
| 13 |
Background generating process identifier (defined by originating centre) |
None |
Operational |
| 14 |
Analysis or forecast generating process identifier (defined by originating centre) |
None |
Operational |
| 15-16 |
Hours of observational data cut-off after reference time |
(see Note 1) |
Operational |
| 17 |
Minutes of observational data cut-off after reference time |
None |
Operational |
| 18 |
Indicator of unit of time range |
Code/Flag Table 4.4 |
Operational |
| 19-22 |
Forecast time in units defined by previous octet |
None |
Operational |
| 23 |
Type of first fixed surface |
Code/Flag Table 4.5 |
Operational |
| 24 |
Scale factor of first fixed surface |
None |
Operational |
| 25-28 |
Scaled value of first fixed surface |
None |
Operational |
| 29 |
Type of second fixed surface |
Code/Flag Table 4.5 |
Operational |
| 30 |
Scale factor of second fixed surface |
None |
Operational |
| 31-34 |
Scaled value of second fixed surface |
None |
Operational |
| 35 |
Type of reference dataset |
Code/Flag Table 4.100 |
Operational |
| 36 |
Type of relation to reference dataset |
Code/Flag Table 4.101 |
Operational |
| 37 |
Number of additional parameters for reference period (NA) |
(see Note 2) |
Operational |
| 38+(na-1)*5 |
Scale factor of additional parameters for reference period |
None |
Operational |
| (38+NA*5)-(39+NA*5) |
Year of start of reference period |
None |
Operational |
| (39+(na-1)*5)-(42+(na-1)*5) |
Scaled value of additional parameters for reference period |
None |
Operational |
| 40+NA*5 |
Month of start of reference period |
None |
Operational |
| 41+NA*5 |
Day of start of reference period |
None |
Operational |
| 42+NA*5 |
Hour of start of reference period |
None |
Operational |
| 43+NA*5 |
Minute of start of reference period |
None |
Operational |
| 44+NA*5 |
Second of start of reference period |
None |
Operational |
| (45+NA*5)-(48+NA*5) |
Sample size of reference period |
None |
Operational |
| 49+NA*5 |
Number of reference period time range (NR) |
(see Note 3) |
Operational |
| 50+NA*5+(nr-1)*6 |
Type of statistical processing for time range for reference period |
Code/Flag Table 4.102 |
Operational |
| 51+NA*5+(nr-1)*6 |
Indicator of unit of time range for reference period |
Code/Flag Table 4.4 |
Operational |
| (52+NA*5+(nr-1)*6)-(55+NA*5+(nr-1)*6) |
Length of time range for reference period |
None |
Operational |