VM - GRIB - WMO version 37 Template

Values

Product definition template 4.176 - 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 with source or sink

Octet Number	Description	Note	Status
None	77-88 Specification of the outermost (or only) time range over which statistical processing is done	None	Operational
None	89-nn These octets are included only if n > 1, where nn = 76 + 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	Source or sink	Code/Flag Table 4.238	Operational
15	Type of interval for first and second sizes	Code/Flag Table 4.91	Operational
16	Scale factor of first size	None	Operational
17-20	Scaled value of first size in metres	None	Operational
21	Scale factor of second size	None	Operational
22-25	Scaled value of second size in metres	None	Operational
26	Type of interval for first and second wavelength	Code/Flag Table 4.91	Operational
27	Scale factor of first wavelength	None	Operational
28-31	Scaled value of first wavelength in metres	None	Operational
32	Scale factor of second wavelength	None	Operational
33-36	Scaled value of second wavelength in metres	None	Operational
37	Type of generating process	Code/Flag Table 4.3	Operational
38	Background generating process identifier (defined by originating centre)	None	Operational
39	Forecast generating process identifier (defined by originating centre)	None	Operational
40-41	Hours after reference time of data cut-off	(see Note 1)	Operational
42	Minutes after reference time of data cut-off	None	Operational
43	Indicator of unit of time range	Code/Flag Table 4.4	Operational
44-47	Forecast time in units defined by octet 43	(see Note 2)	Operational
48	Type of first fixed surface	Code/Flag Table 4.5	Operational
49	Scale factor of first fixed surface	None	Operational
50-53	Scaled value of first fixed surface	None	Operational
54	Type of second fixed surface	Code/Flag Table 4.5	Operational
55	Scale factor of second fixed surface	None	Operational
56-59	Scaled value of second fixed surface	None	Operational
60	Derived forecast	Code/Flag Table 4.7	Operational
61-64	Number of forecasts in ensemble	None	Operational
65-66	Year of end of overall time interval	None	Operational
67	Month of end of overall time interval	None	Operational
68	Day of end of overall time interval	None	Operational
69	Hour of end of overall time interval	None	Operational
70	Minute of end of overall time interval	None	Operational
71	Second of end of overall time interval	None	Operational
72	n - number of time range specifications describing the time intervals used to calculate the statistically processed field	None	Operational
73-76	Total number of data values missing in statistical process	None	Operational
77	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
78	Type of time increment between successive fields used in the statistical processing	Code/Flag Table 4.11	Operational
79	Indicator of unit of time for time range over which statistical processing is done	Code/Flag Table 4.4	Operational
80-83	Length of the time range over which statistical processing is done in units defined by the previous octet	None	Operational
84	Indicator of unit of time for the increment between the successive fields used	Code/Flag Table 4.4	Operational
85-88	Time increment between successive fields in units defined by the previous octet	(see Notes 3 and 4)	Operational
89-100	As octets 77 to 88, next innermost step of processing	None	Operational
101-nn	Additional time range specifications included in accordance with the value of n. Contents as octets 77 to 88, repeated as necessary	None	Operational

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