Parameters forming part of the Climate Change Adaptation Digital Twin (DT) are investigated here. See the encodings below, which are current for ecCodes 2.31.2.

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

Fields on a single level or surface

Atmosphere

Time resolution: Hourly, 3-hourly, 6-hourly, monthly

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	type Of Statistical Processing	local Tables Version	comments
228228	Total Precipitation	tp	kg m**-2	0	1	52	1				1		GG. WMO unit.
228	Total precipitation	tp	m	0	1	193	1			255	1	1	GG. ECMWF unit.
228144	Snowfall water equivalent	sf	kg m**-2	0	1	53	1				1		GG. WMO unit.
144	Snowfall	sf	m of water equivalent	0	1	198	1				1	1	GG. ECMWF unit.
167	2 metre temperature	2t	K	0	0	0	103	0	2				GG
228164	Total Cloud Cover	tcc	%	0	6	1	1			8			GG. WMO unit.
164	Total cloud cover	tcc	(0 - 1)	0	6	192	1			8		1	GG. ECMWF unit.
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
228246	100 metre U wind component	100u	m s**-1	0	2	2	103	0	100				GG
228247	100 metre V wind component	100v	m s**-1	0	2	3	103	0	100				GG
3066	Snow depth	sde	m	0	1	11							GG. Depth of snow without conversion to water.
228141	Snow depth water equivalent	sd	kg m**-2	0	1	60							GG. Depth of snow with conversion to water. WMO unit.
141	Snow depth	sd	m of water equivalent	0	1	254						1	GG. Depth of snow with conversion to water. ECMWF unit.
168	2 metre dewpoint temperature	2d	K	0	0	6	103	0	2				GG
146	Surface sensible heat flux	sshf	J m**-2	0	0	11	1				1		GG
147	Surface latent heat flux	slhf	J m**-2	0	0	10	1				1		GG
169	Surface short-wave (solar) radiation downwards	ssrd	J m**-2	0	4	7	1				1		GG
177	Surface net long-wave (thermal) radiation	str	J m**-2	0	5	5	1				1		GG
176	Surface net short-wave (solar) radiation	ssr	J m**-2	0	4	9	1				1		GG
235	Skin temperature	skt	K	0	0	17	1						GG
XXX	CO2 mass mixing ratio	XXX	kg kg**-1	0	20	2							GG. With key {chemicalConstituent=3} for CO2. Needs adding to DE pseudocentre.
260510	Cloudy brightness temperature	clbt	K	3	1	14							GG
212	TOA incident short-wave (solar) radiation	tisr	J m**-2	0	4	7	8				1		GG
175	Surface long-wave (thermal) radiation downwards	strd	J m**-2	0	5	3	1				1		GG
179	Top net long-wave (thermal) radiation	ttr	J m**-2	0	5	5	8				1		GG
178	Top net short-wave (solar) radiation	tsr	J m**-2	0	4	9	8				1		GG
260259	Evaporation	eva	kg m**-2	0	1	79	1				1		GG. WMO unit.
182	Evaporation	e	m of water equivalent	0	1	199	1				1	1	GG. ECMWF unit.
79	Total column cloud ice water	tciw	kg m**-2	0	1	70	1			8
78	Total column cloud liquid water	tclw	kg m**-2	0	1	69	1			8			GG

Sea ice

Time resolution: daily, monthly

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	comments
31	Sea ice area fraction	ci	(0 - 1)	10	2	0	1						GG
262001	Sea ice area fraction	siconc	Fraction	10	2	0	174	missing	missing	176	missing	missing	O2D
262000	Sea ice thickness	sithick	m	10	2	1	174	missing	missing	176	missing	missing	O2D
262003	Eastward sea ice velocity	siue	m s**-1	10	2	4	174	missing	missing	176	missing	missing	O2D
262004	Northward sea ice velocity	sivn	m s**-1	10	2	5	174	missing	missing	176	missing	missing	O2D
262021	X-component of sea ice velocity	six	m s**-1	10	2	24	174	missing	missing	176	missing	missing	O2D
262022	Y-component of sea ice velocity	siy	m s**-1	10	2	25	174	missing	missing	176	missing	missing	O2D

Ocean

Time resolution: daily, monthly

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	comments
34	Sea surface temperature	sst	K	10	3	0	1						GG
262101	Sea surface temperature	tos	K	10	3	0	160	0	0	missing	missing	missing	O2D
262124	Sea surface height	zos	m	10	3	1	160	0	0	missing	missing	missing	O2D
262100	Sea surface practical salinity	sos	g kg**-1	10	3	3	160	0	0	missing	missing	missing	O2D
XXX	Vertically integrated meridional volume transport	XXX	m3 m-1 s**-1	10	4	44							O2D. Awaiting confirmation of new WMO encoding.

Fields on pressure levels

Time resolution: 6-hourly, monthly

19 pressure levels: (1000, 925, 850, 700, 600, 500, 400, 300, 250, 200, 150, 100, 70, 50, 30, 20, 10, 5, 1)

param Id	name	short Name	units	parameter Category	parameter Number	type Of First Fixed Surface	comments
155	Divergence	d	s**-1	2	13	100	SH
156	Geopotential height	gh	gpm	3	5	100	GG
133	Specific humidity	q	kg kg**-1	1	0	100	GG
157	Relative humidity	r	%	1	1	100	GG
130	Temperature	t	K	0	0	100	GG
131	U component of wind	u	m s**-1	2	2	100	GG
132	V component of wind	v	m s**-1	2	3	100	GG
138	Vorticity (relative)	vo	s**-1	2	12	100	SH

Fields on model levels

Atmosphere

Time resolution: ...

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

param Id	name	short Name	units	parameter Category	parameter Number	type Of First Fixed Surface	comments
77	Eta-coordinate vertical velocity	etadot	s**-1	2	32	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
247	Specific cloud ice water content	ciwc	kg kg**-1	1	84	105	GG. Not in official portfolio.
246	Specific cloud liquid water content	clwc	kg kg**-1	1	83	105	GG. Not in official portfolio.
133	Specific humidity	q	kg kg**-1	1	0	105	GG. Not in official portfolio.
75	Specific rain water content	crwc	kg kg**-1	1	85	105	GG. Not in official portfolio.
76	Specific snow water content	cswc	kg kg**-1	1	86	105	GG. Not in official portfolio.
130	Temperature	t	K	0	0	105	GG. Not in official portfolio.
131	U component of wind	u	m s**-1	2	2	105	GG. Not in official portfolio.
132	V component of wind	v	m s**-1	2	3	105	GG. Not in official portfolio.
135	Vertical velocity	w	Pa s**-1	2	8	105	GG. Also called omega. Not in official portfolio.

Ocean

Time resolution: daily, monthly

param Id	name	short Name	units	discipline	parameter Category	parameter Number	type Of First Fixed Surface	type Of Second Fixed Surface	comments
262505	Northward sea water velocity	von	m s**-1	10	4	24	168	168	O3D
262506	Eastward sea water velocity	uoe	m s**-1	10	4	23	168	168	O3D
262501	Sea water potential temperature	thetao	K	10	4	18	168	168	O3D
262516	Sea water salinity	salo	kg kg**-1	10	4	3	168	168	O3D

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DestinE ClimateDT Parameters

Fields on a single level or surface

Atmosphere

Sea ice

Ocean

Fields on pressure levels

Fields on model levels

Atmosphere

Ocean