Parameters forming part of the Weather and Geophysical Extremes Digital Twin (DT) are investigated here. See the encodings below, which are current for ecCodes 2.35.0.
Data availability
For class=rd,expver=i7yv,stream=oper/wave,type=fc, selected fields in Secn 1.1.1 and 1.1.2 are available from date=20231204 on the LUMI databridge.
For class=d1,dataset=extremes-dt,expver=0001,stream=oper/wave,type=fc all fields below are available from date=20240404 on the LUMI databridge.
Please check the Data availability and retrieval page for more precise information on the availability of parameters and dates.
Additional keys
Please note that additional keys are often necessary in addition to the base parameter definition below. For example for:
- statistical processing (e.g. time interval of processing)
- level information (e.g. a given pressure level, say 300 hPa)
Legend:
Parameter ready for GRIB2 archiving |
Parameter with clarifications required for GRIB2 archiving |
Parameter which needs to be created/modified for GRIB2 archiving |
Contents:
Instantaneous encodings
Fields on a single level or surface
Atmosphere
Time resolution: Hourly (step=0/1/2/.../96).
param Id | name | short Name | units | discipline | parameter Category | parameter Number | type Of First Fixed Surface | scale Factor Of First Fixed Surface | scaled Value Of First Fixed Surface | type Of Second Fixed Surface | scale Factor Of Second Fixed Surface | scaled Value Of Second Fixed Surface | type Of Statistical Processing | local Tables Version | comments |
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31 | ci | (0 - 1) | 10 | 2 | 0 | 1 | GG | ||||||||
34 | sst | K | 10 | 3 | 0 | 1 | GG | ||||||||
78 | tclw | kg m**-2 | 0 | 1 | 69 | 1 | 8 | GG | |||||||
134 | sp | Pa | 0 | 3 | 0 | 1 | GG | ||||||||
136 | tcw | kg m**-2 | 0 | 1 | 51 | 1 | 8 | GG | |||||||
137 | tcwv | kg m**-2 | 0 | 1 | 64 | 1 | 8 | GG | |||||||
151 | msl | Pa | 0 | 3 | 0 | 101 | GG | ||||||||
165 | 10u | m s**-1 | 0 | 2 | 2 | 103 | 0 | 10 | GG | ||||||
166 | 10v | m s**-1 | 0 | 2 | 3 | 103 | 0 | 10 | GG | ||||||
167 | 2t | K | 0 | 0 | 0 | 103 | 0 | 2 | GG | ||||||
168 | 2d | K | 0 | 0 | 6 | 103 | 0 | 2 | GG | ||||||
3020 | vis | m | 0 | 19 | 0 | 103 | 0 | 10 | GG | ||||||
228029 | i10fg | m s**-1 | 0 | 2 | 22 | 103 | 0 | 10 | GG | ||||||
228050 | litoti | km**-2 day**-1 | 0 | 17 | 4 | 1 | 8 | GG. | |||||||
228218 | crr | kg m**-2 s**-1 | 0 | 1 | 76 | 1 | GG | ||||||||
228219 | lsrr | kg m**-2 s**-1 | 0 | 1 | 77 | 1 | GG | ||||||||
228221 | lssfr | kg m**-2 s**-1 | 0 | 1 | 56 | 1 | GG. | ||||||||
228235 | mucape | J kg**-1 | 0 | 7 | 6 | 17 | GG. Used rather than 59; cape, which is phased out. | ||||||||
260015 | ptype | code table (4.201) | 0 | 1 | 19 | GG | |||||||||
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| GG. ECMWF unit. Not yet supported by ExtremesDT IFS. | ||||||
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| GG | |||||||
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| GG | |||||||
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| GG. Not yet supported by ExtremesDT IFS. | |||||||||
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| GG. WMO unit. Not yet supported by ExtremesDT IFS. | |||||||
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| GG. Used rather than 228001; cin, which is phased out. Not yet supported by ExtremesDT IFS. | ||||||||
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| GG. Not yet supported by ExtremesDT IFS. | |||||||||
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| GG. Not yet supported by ExtremesDT IFS. | |||||||||
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| GG. Not yet supported by ExtremesDT IFS. | |||||||||
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| GG. Needs Simulated Satellite mode on... |
Wave
Time resolution: Hourly (step=0/1/2/.../96).
param Id | name | short Name | units | discipline | parameter Category | parameter Number | type Of First Fixed Surface | scale Factor Of First Fixed Surface | scaled Value Of First Fixed Surface | type Of Second Fixed Surface | scale Factor Of Second Fixed Surface | scaled Value Of Second Fixed Surface | type Of Statistical Processing | local Tables Version | comments |
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140221 | mp2 | s | 10 | 0 | 28 | GG | |||||||||
140229 | swh | m | 10 | 0 | 3 | 101 | GG | ||||||||
140230 | mwd | degrees | 10 | 0 | 14 | GG | |||||||||
140231 | pp1d | s | 10 | 0 | 34 | GG | |||||||||
140232 | mwp | s | 10 | 0 | 15 | GG |
Ocean
Time resolution: Hourly.
param Id | name | short Name | units | discipline | parameter Category | parameter Number | type Of First Fixed Surface | scale Factor Of First Fixed Surface | scaled Value Of First Fixed Surface | type Of Second Fixed Surface | scale Factor Of Second Fixed Surface | scaled Value Of Second Fixed Surface | type Of Statistical Processing | local Tables Version | comments |
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Fields on pressure levels
Time resolution: Hourly (step=0/1/2/.../96).
21 pressure levels: (1, 2, 3, 5, 7, 10, 20, 30, 50, 70, 100, 150, 200, 250, 300, 400, 500, 700, 850, 925, 1000)
param Id | name | short Name | units | discipline | parameter Category | parameter Number | type Of First Fixed Surface | scale Factor Of First Fixed Surface | scaled Value Of First Fixed Surface | type Of Second Fixed Surface | scale Factor Of Second Fixed Surface | scaled Value Of Second Fixed Surface | type Of Statistical Processing | local Tables Version | comments |
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129 | Geopotential | z | m**2 s**-2 | 0 | 3 | 4 | 100 | GG. At surface this is orography. | |||||||
130 | t | K | 0 | 0 | 0 | 100 | GG | ||||||||
131 | u | m s**-1 | 0 | 2 | 2 | 100 | GG | ||||||||
132 | v | m s**-1 | 0 | 2 | 3 | 100 | GG | ||||||||
133 | q | kg kg**-1 | 0 | 1 | 0 | 100 | GG | ||||||||
138 | vo | s**-1 | 0 | 2 | 12 | 100 | SH. For diagnostic purposes only - not to go to databridge. | ||||||||
155 | d | s**-1 | 0 | 2 | 13 | 100 | SH. For diagnostic purposes only - not to go to databridge. | ||||||||
157 | r | % | 0 | 1 | 1 | 100 | GG |
Fields on model levels
Atmosphere
Time resolution: Hourly (step=0/1/2/.../96).
137 model levels: (137, 136, ..., 1) - L137 model level definitions
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Sea-ice/snow/soil
Time resolution: Hourly (step=0/1/2/.../96).4 model levels: (1, ..., 4)
param Id | name | short Name | units | discipline | parameter Category | parameter Number | type Of First Fixed Surface | scale Factor Of First Fixed Surface | scaled Value Of First Fixed Surface | type Of Second Fixed Surface | scale Factor Of Second Fixed Surface | scaled Value Of Second Fixed Surface | type Of Statistical Processing | local Tables Version | comments |
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| 40; swvl2 41; swvl3 42; swvl4 Not yet supported by ExtremesDT IFS. |
Fields on height levels
Time resolution: Hourly (step=0/1/2/.../96).
Currently 100m only. These are only for height levels >10m to preserve backwards compatibility with longstanding model fields (2t, 10u, 10v,...)
param Id | name | short Name | units | discipline | parameter Category | parameter Number | type Of First Fixed Surface | scale Factor Of First Fixed Surface | scaled Value Of First Fixed Surface | type Of Second Fixed Surface | scale Factor Of Second Fixed Surface | scaled Value Of Second Fixed Surface | type Of Statistical Processing | local Tables Version | comments |
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228246 | 100u | m s**-1 | 0 | 2 | 2 | 103 | 0 | 100 | GG | ||||||
228247 | 100v | m s**-1 | 0 | 2 | 3 | 103 | 0 | 100 | GG |
Mean encodings
Fields on a single level or surface
Atmosphere
Time resolution: 6 hourly means (step=0-6/6-12/.../90-96).
param Id | name | short Name | units | discipline | parameter Category | parameter Number | type Of First Fixed Surface | scale Factor Of First Fixed Surface | scaled Value Of First Fixed Surface | type Of Second Fixed Surface | scale Factor Of Second Fixed Surface | scaled Value Of Second Fixed Surface | type Of Statistical Processing | local Tables Version | comments |
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228058 | litota6 | km**-2 day**-1 | 0 | 17 | 4 | 1 | 8 | 0 | GG |
Accumulated encodings
Fields on a single level or surface
Atmosphere
Time resolution: Hourly accumulations since the start of the forecast (step=0-1/1-2/2-3/.../95-96).
param Id | name | short Name | units | discipline | parameter Category | parameter Number | type Of First Fixed Surface | scale Factor Of First Fixed Surface | scaled Value Of First Fixed Surface | type Of Second Fixed Surface | scale Factor Of Second Fixed Surface | scaled Value Of Second Fixed Surface | type Of Statistical Processing | local Tables Version | comments |
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142 | lsp | m | 0 | 1 | 196 | 1 | 1 | 1 | GG. ECMWF unit. | ||||||
144 | sf | m of water equivalent | 0 | 1 | 198 | 1 | 1 | 1 | GG. ECMWF unit. | ||||||
169 | ssrd | J m**-2 | 0 | 4 | 7 | 1 | 1 | GG | |||||||
175 | strd | J m**-2 | 0 | 5 | 3 | 1 | 1 | GG | |||||||
176 | ssr | J m**-2 | 0 | 4 | 9 | 1 | 1 | GG | |||||||
177 | str | J m**-2 | 0 | 5 | 5 | 1 | 1 | GG | |||||||
178 | tsr | J m**-2 | 0 | 4 | 9 | 8 | 1 | GG | |||||||
179 | ttr | J m**-2 | 0 | 5 | 5 | 8 | 1 | GG | |||||||
180 | ewss | N m**-2 s | 0 | 2 | 62 | 1 | 1 | GG. | |||||||
181 | nsss | N m**-2 s | 0 | 2 | 63 | 1 | 1 | GG. | |||||||
205 | ro | m | 2 | 0 | 201 | 1 | 1 | GG. ECMWF unit. | |||||||
228 | tp | m | 0 | 1 | 193 | 1 | 1 | 1 | GG. ECMWF unit. | ||||||
228216 | fzra | m | 0 | 1 | 194 | 1 | 1 | 1 | GG. ECMWF unit. | ||||||
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| GG. WMO unit. Not yet supported by ExtremesDT IFS. | |||||||
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| GG. WMO unit. Not yet supported by ExtremesDT IFS. | |||||||
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| GG. WMO unit. Not yet supported by ExtremesDT IFS. | |||||||
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| GG. WMO unit. Not yet supported by ExtremesDT IFS. | |||||||
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| GG. WMO unit. Not yet supported by ExtremesDT IFS. | |||||||
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| GG. WMO unit. Not yet supported by ExtremesDT IFS. |
Maximum encodings
Fields on a single level or surface
Atmosphere
Time resolution: Hourly max (step=0-1/1-2/2-3/.../95-96).
param Id | name | short Name | units | discipline | parameter Category | parameter Number | type Of First Fixed Surface | scale Factor Of First Fixed Surface | scaled Value Of First Fixed Surface | type Of Second Fixed Surface | scale Factor Of Second Fixed Surface | scaled Value Of Second Fixed Surface | type Of Statistical Processing | local Tables Version | comments |
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| GG. |
Minimum encodings
There are no minimum encodings for this dataset.
Conversions
The conversion between the base parameter, mean and accumulation is as follows for relevant parameters:
Inst paramId | Mean paramId | Accum paramId |
... | ... | ... |