Local definition 16: Seasonal forecast monthly mean data
Local definitions
- Local definition 1
- Local definition 2
- Local definition 3
- Local definition 4
- Local definition 5
- Local definition 6
- Local definition 7
- Local definition 8
- Local definition 9
- Local definition 10
- Local definition 11
- Local definition 12
- Local definition 13
- Local definition 14
- Local definition 15
- Local definition 16
- Local definition 17
- Local definition 18
- Local definition 19
- Local definition 20
- Local definition 21
- Local definition 22
- Local definition 23
- Local definition 24
- Local definition 25
- Local definition 26
- Local definition 27
- Local definition 28
- Local definition 29
- Local definition 30
- Local definition 31
- Local definition 32
- Local definition 36
- Local definition 37
- Local definition 38
- Local definition 39
- Local definition 49
- Local definition 50
- Local definition 190
- Local definition 191
- Local definition 192
Octets | Key | Type | Contents |
41 | localDefinitionNumber | unsigned | ECMWF local GRIB use definition identifier. 16 = ECMWF seasonal forecast monthly mean data |
42 | class | codetable | Class |
43 | type | codetable | Type |
44-45 | stream | codetable | Stream |
46-49 | experimentVersionNumber | ksec1expver | Version number or experiment identifier. (4 ASCII characters, right justified) |
50-51 | perturbationNumber | unsigned | Ensemble member number. Control forecast is number 0, perturbed forecasts 1-nn. |
- | Zero | ||
52-53 | systemNumber | unsigned | System number. The "scientific version" number. 0 = RD experiment, 1 - 65534 = operational version number, 65535 = missing |
54-55 | methodNumber | unsigned | Method number. Distinguishes scientifically different forecast ensembles
(eg different calibration/bias correction) 0 = control integration (ie without data assimilation), 1 - 65534 = operational version number |
56-59 | verifyingMonth | unsigned | Verifying month (in format YYYYMM) |
60 | averagingPeriod | unsigned | Averaging period (eg 6-hour, 24-hour) |
61-62 | forecastMonth | unsigned | Forecast month |
63-64 | numberOfForecastsInEnsemble | unsigned | Number of forecasts in ensemble |
65-80 | Spare (set to zero) |
( 1) For instantaneous fields, a monthly mean is the mean of the fields sampled at the specified averaging period.
( 2) For accumulated fields, a monthly mean is the mean rate of accumulation of the fields.