| Octet No. |
Contents |
10
|
Parameter category (see Code
table 4.1)
|
11
|
Parameter number (see Code table
4.2)
|
12-13
|
Atmospheric Chemical Constituent Type (see
Code table 4.230)
|
14
|
Type of generating process (see
Code table 4.3)
|
15
|
Background generating process
identifier (defined by originating centre)
|
16
|
Analysis or forecast generating process identifier
(see Code ON388 Table A)
|
17-18
|
Hours of observational data
cutoff after reference time (see Note)
|
19
|
Minutes of observational data
cutoff after reference time (see Note)
|
20
|
Indicator of unit of time range
(see Code table 4.4)
|
21-24
|
Forecast time in units defined
by octet 20
|
25
|
Type of first fixed surface (see
Code table 4.5)
|
26
|
Scale factor of first fixed
surface |
27-30
|
Scaled value of first fixed
surface
|
31
|
Type of second fixed surfaced
(see Code table 4.5)
|
32
|
Scale factor of second fixed
surface
|
33-36
|
Scaled value of second fixed
surfaces
|