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) |
14-15 | Number of mode (N) of distribution (See Note 1) |
16-17 | Mode number (l) |
18-19 | Type of distribution function (see Code Table 4.240) |
20 | Number of following function paramters (N_{p}), defined by type given in octet 18-19 (Type of distribution function) |
21 - Repeat the following 5 octets for the number of function parameters (n=1, N_{p}), if N_{p}>0 | |
21+5(n-1) | List of scale factor of fixed distribution function parameter (p_{1}- p_{Np}), defined by type of distribution in octet 18-19 |
(22+5(n-1)) - (25+5(n-1)) | List of scale value of fixed distribution function parameter (p_{1}- p_{Np}), defined by type of distribution in octet 18-19 |
21+5N_{p} | Type of generting process (see Code Table 4.3) |
22+5N_{p} | Background generting process identifier (defined by originating centre) |
23+5N_{p} | Analysis or forecast generating process identifier (defined by originating centre) |
(24+5N_{p}) - (25+5N_{p}) | Hours of observational data cut-off after reference time (See Note 2) |
26+5N_{p} | Minutes of observational data cut-off after reference time |
27+5N_{p} | Indicator of unit of time range (see Code Table 4.4) |
(28+5N_{p}) - (31+5N_{p}) | Forecast time in units defined by previous octet |
32+5N_{p} | Type of first fixed surface (see Code Table 4.5) |
33+5N_{p} | Scale factor of first fixed surface |
(34+5N_{p}) - (37+5N_{p}) | Scale value of first fixed surface |
38+5N_{p} | Type of first second surface (see Code Table 4.5) |
39+5N_{p} | Scale factor of second fixed surface |
(40+5N_{p}) - (43+5N_{p}) | Scale value of second fixed surface |
Notes: 1. If Number of mode (N) > 1, then between x N fields with mode number I=1,...,N define the distribution function. x is number of variable parameters in the distribution function. 2. Hours greater than 65534 will be coded as 65534 3. For more information, see Part B, GRIB Attachment III. |