Parameters forming part of the Weather and Geophysical Extremes Digital Twin (DT) are investigated here. See the encodings below, which are current for ecCodes 2.3233.10.

Warning

title	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:

...

Data availability

Currently only the fields in Secn 1.1.1 and 1.1.2 are available on the LUMI databridge as part of the first production-like ExtremesDT runs.

This is currently in class=rd,expver=i7yv,stream=oper,type=fc

Info

title	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)

Any entry with localTablesVersion=1 should not be used in production outside ECMWF.

Legend:

Parameter ready for GRIB2 archiving

Parameter with clarifications required for GRIB2 archiving

Parameter which needs to be created/modified for GRIB2 archiving

Contents:

Table of Contents

maxLevel	3

Instantaneous encodings

Fields on a single level or surface

Atmosphere

Time resolution: Hourly.

param Id

Contents:

Table of Contents

maxLevel	3

Instantaneous encodings

Fields on a single level or surface

Atmosphere

...

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
31	Sea ice area fraction	ci	(0 - 1)	10	2	0	1								GG
34	Sea surface temperature	sst	K	10	3	0	1								GG
78	Total column cloud liquid water	tclw	kg m**-2	0	1	69	1			8					GG
134	Surface pressure	sp	165	10 metre U wind component	10u	m s**-1	0	2	2	103	0	10	GG	166	10 metre V wind component	10v	m s**-1	0	2	3	103	0	10	GG	167	2 metre temperature	2t	K	0	0	0	103	0	2	GG	151	Mean sea level pressure	msl	Pa	0	3	0	1011								GG	134	Surface pressure	sp
136	Total column water	tcw	kg m**-2Pa	0	31	051	1			8					GG
136137	Total column vertically-integrated water vapour	tcwtcwv	kg m**-2	0	1	5164	1			8					GG
151	Mean sea level pressure	msl	Pa	168	2 metre dewpoint temperature	2d	K	00	3	6	103	0	2101								GG
165	10 metre U wind component	10u	m s	228235	Most-unstable CAPE	mucape	J kg**-1	0	7	6	17	GG. Used rather than 59; cape, which is phased out.	~~228236~~	~~Most-unstable CIN~~	~~mucin~~	2	2	103	0	10						GG
166	10 metre V wind component	10v	m sJ kg**-1	0	2	3	10377	0	1710						GG. Used rather than 228001; cin, which is phased out. Not yet supported by ExtremesDT IFS.
167	2 metre temperature	2t	K	0	0	0	103	0	2						GG
168	2 metre dewpoint temperature	2d	K	0	0	6	103	0	2						GG
228218	Convective rain rate	crr	kg m-2 s-1	0	1	76	1	GG	~~228003~~	~~Friction velocity~~	~~zust~~	~~m s**-1~~	10	0	17	GG. Not yet supported by ExtremesDT IFS.	228029	Instantaneous 10 metre wind gust	i10fg	m s**-1	0	2	22	103	0	10						GG
228218	Convective rain rate	crr	kg m	~~228050~~	~~Instantaneous total lightning flash density~~	~~litoti~~	km-2 days-1	0	171	476	1	8								GG.Not yet supported by ExtremesDT IFS.
228219	Large scale rain rate	lsrr	kg m-2 s-1	0	1	77	1								GG	~~228221~~	~~Large scale snowfall rate water equivalent~~	~~lssfr~~
228235	Most-unstable CAPE	mucape	J kgkg m-2 s-1	0	17	566	117								GG. Not yet supported by ExtremesDT IFSUsed rather than 59; cape, which is phased out.
260015	Precipitation type	ptype	code table (4.201)	0	1	19									GG
~~164~~	~~Total cloud cover~~	~~tcc~~	31	Sea ice area fraction	ci	~~(0 - 1)~~	0	6	~~192~~10	21			08				1	GG. ECMWF unit. Not yet supported by ExtremesDT IFS.
~~3020~~	~~Visibility~~	~~vis~~	m	34	Sea surface temperature	sst	K	10	3	0	1 19	GG 0	~~103~~	0	10						GG
~~162071~~	~~Vertical integral of eastward water vapour flux~~	~~viwve~~	~~kg m-1 s-1~~	0	1	~~150~~	1			8					GG
~~162072~~	~~Vertical integral of northward water vapour flux~~	~~viwvn~~	~~kg m-1 s-1~~	0	1	~~151~~	1			8					GG
~~228003~~	~~Friction velocity~~	~~zust~~	~~m s**-1~~	10	0	17									~~231013~~	~~Reflectance in 0.4 micron channel~~	~~rfl04~~	%	3	1	30	GG. Not yet supported by ExtremesDT IFS.	~~260227~~	~~Reflectance in 0.6 micron channel~~	~~rfl06~~	%	3	1	9	GG. Not yet supported by ExtremesDT IFS.	~~260228~~	~~Reflectance in 0.8 micron channel~~	~~rfl08~~	%	3	1	10	GG. Not yet supported by ExtremesDT IFS.
~~228050~~	~~Instantaneous total lightning flash density~~	~~litoti~~	~~km-2 day-1~~	0	17	4	1			8					GG. Not yet supported by ExtremesDT IFS.	~~260510~~	~~Cloudy brightness temperature~~	~~clbt~~	K	3	1	14	GG. Needs Simulated Satellite mode on...
~~228164~~	~~Total Cloud Cover~~	~~tcc~~	%	0	6	1	1			8					GG. WMO unit. Not yet supported by ExtremesDT IFS.	~~164~~	~~Total cloud cover~~	~~tcc~~	~~(0 - 1)~~	0	6	~~192~~	1
~~228221~~	~~Large scale snowfall rate water equivalent~~	~~lssfr~~	~~kg m-2 s-1~~	0	1	568	1								GG. ECMWF unit. Not yet supported by ExtremesDT IFS.	78	Total column cloud liquid water	tclw
~~228236~~	~~Most-unstable CIN~~	~~mucin~~	~~J kg~~kg m**-21	0	17	697	1	817								GG	137	Total column vertically-integrated water vapour	tcwv	kg m**-2	0	1	64	1	8	GG	~~162071~~	~~Vertical integral of eastward water vapour flux~~	~~viwve~~	~~kg m-1 s-1~~	0	1	~~150~~	1	8	GG	~~162072~~	~~Vertical integral of northward water vapour flux~~	~~viwvn~~	~~kg m-1 s-1~~	0	1	~~151~~	1	8	GG	~~3020~~	~~Visibility~~	~~vis~~	m	0	19	0	~~103~~	0	10	GG

Wave

. Used rather than 228001; cin, which is phased out. Not yet supported by ExtremesDT IFS.
~~231013~~	~~Reflectance in 0.4 micron channel~~	~~rfl04~~	%	3	1	30	GG. Not yet supported by ExtremesDT IFS.
~~260227~~	~~Reflectance in 0.6 micron channel~~	~~rfl06~~	%	3	1	9	GG. Not yet supported by ExtremesDT IFS.
~~260228~~	~~Reflectance in 0.8 micron channel~~	~~rfl08~~	%	3	1	10	GG. Not yet supported by ExtremesDT IFS.
~~260510~~	~~Cloudy brightness temperature~~	~~clbt~~	K	3	1	14	GG. Needs Simulated Satellite mode on...

Wave

Time resolution:Hourly.Time resolution:3 hourly for fields kept throughout phase 1 – or hourly for 1 or 2 days only. Ultimate goal to store sub-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	comments
140221	Mean zero-crossing wave period	mp2	s	10	0	28						GG	140230	Mean wave direction	mwd
140229	Significant height of combined wind waves and swell	swh	mdegrees	10	0	3	14101					GG
140232140230	Mean wave perioddirection	mwpmwd	sdegrees	10	0	1514						GG
140231	Peak wave period	pp1d	s	10	0	34						GG
140232	Mean wave period	mwp	s	140229	Significant height of combined wind waves and swell	swh	m	10	0	315	101					GG

Ocean

Time resolution:3 hourly for fields kept throughout phase 1 – or hourly for 1 or 2 days only. Ultimate goal to store sub-hourly. 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
262121	Vertically-integrated heat content in the upper 300 m	hc300m	J m**-2	10	4	22	160	0	0	160	0	300			O2D

Fields on pressure levels

Time resolution:3 hourly for fields kept throughout phase 1 – or hourly for 1 or 2 days only. Ultimate goal to store sub-hourly Hourly.

21 pressure levels: (1, 2, 3, 5, 7, 10, 20, 30, 50, 70, 100, 150, 200, 250, 300, 400, 500, 700, 850, 925, 1000)

GG

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	155	Divergence	d	s**-1	0	2	13	100	SH	156	Geopotential height	gh	gpm	0	3	5	100	GG	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	133	Specific humidity	q	kg kg**-1	0	1	0	100	GG	157	Relative humidity	r	%	0	1	1	100
130	Temperature	t	K	0	0	0	100								GG
131	U component of wind	u	m s**-1	0	2	2	100	GG	132	V component of wind	v	m s**-1	0	2	3	100	GG	138	Vorticity (relative)	vo	wind	u	m s**-1	0	2	122	100	SH

Fields on model levels

Atmosphere

...

							GG
132	V component of wind	v	m s**-1	0	2	3	100	GG
133	Specific humidity	q	kg kg**-1	0	1	0	100	GG
138	Vorticity (relative)	vo

137 model levels: (137, 136, ..., 1) - L137 model level definitions

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

77Eta-coordinate vertical velocityetadot
s**-1
0
2
32
12
105
GG. Not in official portfolio.
248Fraction of cloud covercc(0-1)0632
105
GG. Not in official portfolio.
260238Geometric vertical velocitywzm s**-1029
105
GG. Not in official portfolio. Replaces 120; Exper. product
247Specific cloud ice water contentciwckg kg**-1
100

SH
155
Divergence
d
s**-1
0
2
13
100

SH
156
Geopotential height
gh
gpm
0
3
5
100

GG
157
Relative humidity
r
%
0
1
84
1
105
100

GG

Fields on model levels

Atmosphere

Time resolution: Hourly.

137 model levels: (137, 136, ..., 1) - L137 model level definitions

. Not in official portfolio.

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
246	Specific cloud liquid water content	clwc	kg kg**-1	0	1	83	105	GG. Not in official portfolio.	133	Specific humidity	q	kg kg**-1	0	1	0	105	GG. Not in official portfolio.	75	Specific rain water content	crwc	kg kg**-1	0	1	85	105		GG. Not in official portfolio.
76	Specific snow water content	cswc	kg kg**-1	0	1	86	105	GG. Not in official portfolio.	130	Temperature	t	K	0	0		Specific snow water content	cswc	kg kg**-1	0	1	860	105				GG. Not in official portfolio.
77	Eta-coordinate vertical velocity	etadot	131	U component of wind	u	m s**-1	0	22	32	105								GG. Not in official portfolio.
130	Temperature	t	K	132	V component of wind	v	m s**-1	0	20	30	105								GG. Not in official portfolio.
131	U component of wind	u	m	135	Vertical velocity	w	Pa s**-1	0	2	82	105								GG. Also called omega. Not in official portfolio.

Sea-ice/snow/soil

...

132	V component of wind	v	m s**-1	2	3	105	GG. Not in official portfolio.
133	Specific humidity	q	kg kg**-1	1	0	105	GG. Not in official portfolio.
135	Vertical velocity	w	Pa s**-1	2	8	105	GG. Also called omega. Not in official portfolio.
246	Specific cloud liquid water content	clwc	kg kg**-1	1	83	105	GG. Not in official portfolio.
247	Specific cloud ice water content	ciwc	kg kg**-1	1	84	105	GG. Not in official portfolio.
248	Fraction of cloud cover	cc	(0-1)	6	32	105	GG. Not in official portfolio.
260238	Geometric vertical velocity	wz	m s**-1	2	9	105	GG. Not in official portfolio. Replaces 120; Exper. product

Sea-ice/snow/soil

Time resolution: Hourly.
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
260360	Soil temperature	sot	K	2	3	18	151	0	N-1	151	0	N			GG. For soil layer N. Replaces: 139; stl1 170; stl2 183; stl3 236; stl4
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
260360	Soil temperature	sot	K	2	3	18	151	0	0	151	0	1	GG. Replaces 139; stl1	260360	Soil temperature	sot	K	2	3	18	151	0	1	151	0	2	GG. Replaces 170; stl2	260360	Soil temperature	sot	K	2	3	18	151	0	2	151	0	3	GG. Replaces 183; stl3	260360	Soil temperature	sot	K	2	3	18	151	0	3	151	0	4	GG. Replaces 236; stl4	260199	Volumetric soil moisture	vsw	m3 m-3	2	0	25	151	0	0	151	0	1	GG. Replaces 39; swvl1	260199	Volumetric soil moisture	vsw	m3 m-3	2	0	25	151	0	1	151	0	2	GG. Replaces 40; swvl2	260199	Volumetric soil moisture	vsw	m3 m-3	2	0	25	151	0	2	151	0	3	GG. Replaces 41; swvl3
260199	Volumetric soil moisture	vsw	m3 m-3	2	0	25	151	03	N-1	151	0	4N			GG. For soil layer N. Replaces Replaces: 39; swvl1 40; swvl2 41; swvl3 42; swvl4

Fields on height levels

Time resolution:From 6-hourly to monthlyHourly.

Currently 100m only. These are only for height levels >10m to preserve backwards compatibility with longstanding model fields (2t, 10u, 10v,...)

...

Atmosphere

Time resolution: hourly accumsHourly accumulations since the start of the forecast, i.e. 0-1, 0-2, 0-3, ..., 0-96.

180N s2621.1.
ECMWF unit

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	type Of Statistical Processing	local Tables Version	comments	Version	comments
142	Large-scale precipitation	lsp	m	0	1	196	1					1	205	Runoff	ro	m	2	0	201	1	1	GG. ECMWF unit.	231002	Runoff water equivalent (surface plus subsurface)	rowe	kg m**-2	2	0	42	1	GG. WMO ECMWF unit.
228144	Total precipitation Snowfall	tpsf	m of water equivalent	0	1	193198	1					1	1	GG. ECMWF unit.	228228	Total Precipitation	tp
169	Surface short-wave (solar) radiation downwards	ssrd	J kg m**-2	0	14	527	1					1		GG.WMO unit.	231001	Accumulated freezing rain water equivalent	fzrawe
175	Surface long-wave (thermal) radiation downwards	strd	J kg m**-2	0	15	673	1					1		GG.WMO unit.	228216	Accumulated freezing rain	fzra
176	Surface net short-wave (solar) radiation	ssr	J m**-2m	0	14	1949	1					1	1		GG.ECMWF unit.
177	Surface net long-wave (thermal) radiation	str	J	228143	Convective precipitation	cp	kg m**-2	0	15	375	1					1		GG
178	Time-integrated eastward turbulent surface stress	ewss	Top net short-wave (solar) radiation	tsr	J m**-2		0	4	9	8					1		GG
3062179	Large-scale precipitation	lsp	Top net long-wave (thermal) radiation	ttr	J kg m**-2	0	15	545	18					1		GG.WMO unit.	142	Large-scale precipitation	lsp	m	0	1	196
180	Time-integrated eastward turbulent surface stress	ewss	N m**-2 s	0	2	62		1					1		GG	.
181	Time-integrated northward turbulent surface stress	nsss	N m**-2 s	0	2	63	1					1		GG.
228144205	Snowfall water equivalent Runoff	sfro	kg m**-	2	0	201						1	1	GG. ECMWF unit.
228	Total precipitation	tp	m	0	1	193	153					1	1	GG. WMO ECMWF unit.	144	Snowfall	sf
3062	Large-scale precipitation	lsp	kg m**-2m of water equivalent	0	1	198	154	1					1		GG. ECMWF WMO unit.
228143	Convective precipitation	cp	kg	176	Surface net short-wave (solar) radiation	ssr	J m**-2	0	41	937	1					1		GG	177	Surface net long-wave (thermal) radiation	str
228144	Snowfall water equivalent	sf	kg J m**-2	0	515	53	1					1		GG.	169	Surface short-wave (solar) radiation downwards	ssrd	WMO unit.
228216	Accumulated freezing rain	fzra	m	0	1	194	1	J m**-2	0	4	7					1	1	GG. ECMWF unit.
228228	Total Precipitation	tp	kg	175	Surface long-wave (thermal) radiation downwards	strd	J m**-2	0	51	352	1					1		GG.	178	Top net short-wave (solar) radiation	tsr	WMO unit.
231001	Accumulated freezing rain water equivalent	fzrawe	kg J m**-2	0	41	967	81					1		GG.	179	Top net long-wave (thermal) radiation	WMO unit.
231002	Runoff water equivalent (surface plus subsurface)	rowe	kg	ttr	J m**-2	2	0	5	5	842						1		GG. WMO unit.

Maximum encodings

Fields on a single level or surface

Atmosphere

Time resolution: hourly Hourly max.

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
49	10 metre wind gust since previous post-processing	10fg	m s**-1	0	2	22	103	0	10				2		GG

...

Page tree

Versions Compared

Old Version 6

New Version Current

Key

Instantaneous encodings

Fields on a single level or surface

Atmosphere

Instantaneous encodings

Fields on a single level or surface

Atmosphere

Wave

Wave

Ocean

Fields on pressure levels

Fields on model levels

Atmosphere

Fields on model levels

Atmosphere

Sea-ice/snow/soil

Sea-ice/snow/soil

Fields on height levels

Atmosphere

Maximum encodings

Fields on a single level or surface

Atmosphere

Page tree

Page History

Versions Compared

Old Version 6

New Version Current

Key

Instantaneous encodings

Fields on a single level or surface

Atmosphere

Instantaneous encodings

Fields on a single level or surface

Atmosphere

Wave

Wave

Ocean

Fields on pressure levels

Fields on model levels

Atmosphere

Fields on model levels

Atmosphere

Sea-ice/snow/soil

Sea-ice/snow/soil

Fields on height levels

Atmosphere

Maximum encodings

Fields on a single level or surface

Atmosphere