VM - GRIB - WMO version 37 Template

Values

Product definition template 4.175 - Derived forecasts based on all ensemble members at a horizontal level or in a horizontal layer in a continuous or non-continuous time interval for optical properties of aerosol

Octet Number	Description	Note	Status
None	76-87 Specification of the outermost (or only) time range over which statistical processing is done	None	Operational
None	88-nn These octets are included only if n > 1, where nn = 75 + 12 x n	None	Operational
10	Parameter category	Code/Flag Table 4.1	Operational
11	Parameter number	Code/Flag Table 4.2	Operational
12-13	Aerosol type	Code/Flag Table 4.233	Operational
14	Type of interval for first and second sizes	Code/Flag Table 4.91	Operational
15	Scale factor of first size	None	Operational
16-19	Scaled value of first size in metres	None	Operational
20	Scale factor of second size	None	Operational
21-24	Scaled value of second size in metres	None	Operational
25	Type of interval for first and second wavelength	Code/Flag Table 4.91	Operational
26	Scale factor of first wavelength	None	Operational
27-30	Scaled value of first wavelength in metres	None	Operational
31	Scale factor of second wavelength	None	Operational
32-35	Scaled value of second wavelength in metres	None	Operational
36	Type of generating process	Code/Flag Table 4.3	Operational
37	Background generating process identifier (defined by originating centre)	None	Operational
38	Forecast generating process identifier (defined by originating centre)	None	Operational
39-40	Hours after reference time of data cut-off	(see Note 1)	Operational
41	Minutes after reference time of data cut-off	None	Operational
42	Indicator of unit of time range	Code/Flag Table 4.4	Operational
43-46	Forecast time in units defined by octet 42	(see Note 2)	Operational
47	Type of first fixed surface	Code/Flag Table 4.5	Operational
48	Scale factor of first fixed surface	None	Operational
49-52	Scaled value of first fixed surface	None	Operational
53	Type of second fixed surface	Code/Flag Table 4.5	Operational
54	Scale factor of second fixed surface	None	Operational
55-58	Scaled value of second fixed surface	None	Operational
59	Derived forecast	Code/Flag Table 4.7	Operational
60-63	Number of forecasts in ensemble	None	Operational
64-65	Year of end of overall time interval	None	Operational
66	Month of end of overall time interval	None	Operational
67	Day of end of overall time interval	None	Operational
68	Hour of end of overall time interval	None	Operational
69	Minute of end of overall time interval	None	Operational
70	Second of end of overall time interval	None	Operational
71	n - number of time range specifications describing the time intervals used to calculate the statistically processed field	None	Operational
72-75	Total number of data values missing in statistical process	None	Operational
76	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
77	Type of time increment between successive fields used in the statistical processing	Code/Flag Table 4.11	Operational
78	Indicator of unit of time for time range over which statistical processing is done	Code/Flag Table 4.4	Operational
79-82	Length of the time range over which statistical processing is done in units defined by the previous octet	None	Operational
83	Indicator of unit of time for the increment between the successive fields used	Code/Flag Table 4.4	Operational
84-87	Time increment between successive fields in units defined by the previous octet	(see Notes 3 and 4)	Operational
88-99	As octets 76 to 87, next innermost step of processing	None	Operational
100-nn	Additional time range specifications included in accordance with the value of n. Contents as octets 76 to 87, repeated as necessary	None	Operational

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