VM - GRIB - WMO version 37 Template

Values

Product definition template 4.63 - individual ensemble forecast, control and perturbed, at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval for spatio-temporal changing tiles

Octet Number	Description	Note	Status
None	56-67 Specification of the outermost (or only) time range over which statistical processing is done	None	Operational
None	68-nn These octets are included only if n > 1, where nn = 55 + 12 x n	None	Operational
10	Parameter category	Code/Flag Table 4.1	Operational
11	Parameter number	Code/Flag Table 4.2	Operational
12	Tile classification	Code/Flag Table 4.242	Operational
13	Total number (NT) of tile/attribute pairs	(see Notes 1 and 2)	Operational
14	Number of used spatial tiles (NUT)	(see Notes 1 and 2)	Operational
15	Tile index (ITN = {1,…, NUT})	(see Note 1)	Operational
16	Number of used tile attributes (NAT) for tile ITN	(see Note 1)	Operational
17	Attribute of tile (A = {A(1),…, A(NAT(ITN))})	Code/Flag Table 4.241	Operational
18	Type of generating process	Code/Flag Table 4.3	Operational
19	Background generating process identifier (defined by originating centre)	None	Operational
20	Analysis or forecast generating process identifier (defined by originating centre)	None	Operational
21-22	Hours of observational data cut-off after reference time	(see Note 3)	Operational
23	Minutes of observational data cut-off after reference time	None	Operational
24	Indicator of unit of time range	Code/Flag Table 4.4	Operational
25-28	Forecast time in units defined by octet 24	(see Note 4)	Operational
29	Type of first fixed surface	Code/Flag Table 4.5	Operational
30	Scale factor of first fixed surface	None	Operational
31-34	Scaled value of first fixed surface	None	Operational
35	Type of second fixed surface	Code/Flag Table 4.5	Operational
36	Scale factor of second fixed surface	None	Operational
37-40	Scaled value of second fixed surface	None	Operational
41	Type of ensemble forecast	Code/Flag Table 4.6	Operational
42	Perturbation number	None	Operational
43	Number of forecasts in ensemble	None	Operational
44-45	Year - Time of end of overall time interval	None	Operational
46	Month - Time of end of overall time interval	None	Operational
47	Day - Time of end of overall time interval	None	Operational
48	Hour - Time of end of overall time interval	None	Operational
49	Minute - Time of end of overall time interval	None	Operational
50	Second - Time of end of overall time interval	None	Operational
51	n - number of time range specifications describing the time intervals used to calculate the statistically processed field	None	Operational
52-55	Total number of data values missing in statistical process	None	Operational
56	Statistical process used to calculate the processed field from the field at each time increment during the time range	Code/Flag Table 4.10	Operational
57	Type of time increment between successive fields used in the statistical processing	Code/Flag Table 4.11	Operational
58	Indicator of unit of time for time range over which statistical processing is done	Code/Flag Table 4.4	Operational
59-62	Length of the time range over which statistical processing is done, in units defined by the previous octet	None	Operational
63	Indicator of unit of time for the increment between the successive fields used	Code/Flag Table 4.4	Operational
64-67	Time increment between successive fields, in units defined by the previous octet	(see Notes 5 and 6)	Operational
68-79	As octets 56 to 67, next innermost step of processing	None	Operational
80-nn	80-nn Additional time range specifications, included in accordance with the value of n. Contents as octets 56 to 67, repeated as necessary	None	Operational

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