GRIB2 - PRODUCT DEFINITION TEMPLATE 4.71

Post-processing Individual Ensemble Forecast, Control and
Perturbed, at a horizontal level or in a horizontal layer at a point in time

Created 07/11/2017


Octet No. Contents
10 Parameter category (see Code Table 4.1)
11 Parameter number (see Code Table 4.2)
12-13 Input process identifier (see Note 1)
14-15 Input originating centre (see Common Code table C–11 and Note 2)
16 Type of post-processing (see Note 3)
17 Type of generating process (see Code Table 4.3)
18
 Background generating process identifier (defined by originating centre)
19
 Forecast generating process identified (see Code ON388 Table A)
20-21 Hours after reference time of data cut-off (see Note 4)
22
 Minutes after reference time data cutoff
23 Indicator of unit of time range (see Code Table 4.4)
24-27
 Forecast time in units defined by octet 23
28 Type of first fixed surface (see Code Table 4.5)
29
 Scale factor of first fixed surface
30-33
 Scaled value of first fixed surface
34 Type of second fixed surfaced (see Code Table 4.5)
35
 Scale factor of second fixed surface
36-39
 Scaled value of second fixed surfaces
40 Type of ensemble forecast (see Code table 4.6)
41 Perturbation number
42 Number of forecasts in ensemble


Note: 

(1) The input process identifier shall have the value of the “analysis or forecast process identifier” of the original GRIB message used as input of the post-processing.

(2) The input originating centre shall have the value of the “originating centre” of the original GRIB message used as input of the post-processing.

(3) This identifies which post-processing technique was used. This is defined by the originating centre.

(4) Hours greater than 65534 will be coded as 65534



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