Section 4 - Template 53 : Partitioned parameters at a horizontal level or horizontal layer at a point in time

Octets Key Type Content
10 Parameter category (see Code table 4.1)
11 Parameter number (see Code table 4.2)
12 Partition Table Number (PTN)
13 Number of Partitions (NP)
14-(14+2NP-1) Partition set (list all partition numbers in the partition, code table 4.PTN)
(14+2NP)-(15+2NP) Partition number (PN) (see Code Table 4.PTN)
16+2NP Type of generating process (see Code table 4.3)
17+2NP Background generating process identifier (defined by originating centre)
18+2NP Analysis or forecast generating processes identifier (defined by originating centre)
(19+2NP)-(20+2NP) Hours of observational data cutoff after reference time
21+2NP Minutes of observational data cutoff after reference time
22+2NP Indicator of unit of time range (see Code table 4.4)
(23+2NP)-(26+2NP) Forecast time in units defined previously
27+2NP Type of first fixed surface (see Code Table 4.5)
28+2NP Scale factor of first fixed surface
(29+2NP)-(32+2NP) Scaled value of first fixed surface
33+2NP Type of second fixed surface (see Code Table 4.5)
34+2NP Scale factor of second fixed surface
(35+2NP)-(38+2NP) Scaled value of second fixed surface