Parameters forming part of the Climate Change Adaptation Digital Twin (DT) are investigated here. See the encodings below, which are current for ecCodes 2.32.8/2.34.3.

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

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	local Tables Version	comments
78	Total column cloud liquid water	tclw	kg m**-2	0	1	69	1			8				model=ICON/IFS-NEMO HEALPIX
79	Total column cloud ice water	tciw	kg m**-2	0	1	70	1			8				model=ICON/IFS-NEMO HEALPIX
134	Surface pressure	sp	Pa	0	3	0	1							model=ICON/IFS-NEMO HEALPIX
137	Total column vertically-integrated water vapour	tcwv	kg m**-2	0	1	64	1			8				model=ICON/IFS-NEMO HEALPIX
141	Snow depth	sd	m of water equivalent	0	1	254	1						1	model=IFS-NEMO HEALPIX. Depth of snow with conversion to water. ECMWF unit.
148	Charnock	chnk	Numeric	10	0	76	1							model=IFS-NEMO HEALPIX
151	Mean sea level pressure	msl	Pa	0	3	0	101							model=ICON/IFS-NEMO HEALPIX
159	Boundary layer height	blh	m	0	3	18	1							model=IFS-NEMO HEALPIX
164	Total cloud cover	tcc	(0 - 1)	0	6	192	1			8			1	model=IFS-NEMO HEALPIX. ECMWF unit.
165	10 metre U wind component	10u	m s**-1	0	2	2	103	0	10					model=ICON/IFS-NEMO HEALPIX
166	10 metre V wind component	10v	m s**-1	0	2	3	103	0	10					model=ICON/IFS-NEMO HEALPIX
167	2 metre temperature	2t	K	0	0	0	103	0	2					model=ICON/IFS-NEMO HEALPIX
168	2 metre dewpoint temperature	2d	K	0	0	6	103	0	2					model=ICON/IFS-NEMO HEALPIX
186	Low cloud cover	lcc	(0 - 1)	0	6	193	1			100	0	80000	1	model=IFS-NEMO HEALPIX. ECMWF unit.
187	Medium cloud cover	mcc	(0 - 1)	0	6	194	100	0	80000	100	0	45000	1	model=IFS-NEMO HEALPIX. ECMWF unit.
188	High cloud cover	hcc	(0 - 1)	0	6	195	100	0	45000	8			1	model=IFS-NEMO HEALPIX. ECMWF unit.
235	Skin temperature	skt	K	0	0	17	1							model=ICON/IFS-NEMO HEALPIX
228164	Total Cloud Cover	tcc	%	0	6	1	1			8				model=ICON HEALPIX. WMO unit.
260048	Total precipitation rate	tprate	kg m-2 s-1	0	1	52	1							model=ICON/IFS-NEMO HEALPIX
~~3066~~	~~Snow depth~~	~~sde~~	m	0	1	11	~~114~~							~~HEALPIX. Depth of snow without conversion to water.~~ Not yet supported by ClimateDT IFS.
~~3073~~	~~Low cloud cover~~	~~lcc~~	%	0	6	3	1			~~100~~	0	~~80000~~		HEALPIX. WMO unit. Not yet supported by ClimateDT IFS.
~~3074~~	~~Medium cloud cover~~	~~mcc~~	%	0	6	4	~~100~~	0	~~80000~~	~~100~~	0	~~45000~~		HEALPIX. WMO unit. Not yet supported by ClimateDT IFS.
~~3075~~	~~High cloud cover~~	~~hcc~~	%	0	6	5	~~100~~	0	~~45000~~	8				HEALPIX. WMO unit. Not yet supported by ClimateDT IFS.
~~228141~~	~~Snow depth water equivalent~~	sd	~~kg m**-2~~	0	1	60	1							HEALPIX. Depth of snow with conversion to water. WMO unit. Not yet supported by ClimateDT IFS.
~~210061~~	~~Carbon dioxide mass mixing ratio~~	~~co2~~	~~kg kg**-1~~	0	20	2								~~HEALPIX. With key {chemicalConstituent=3; is_chemical=1} for CO2. Need also productionStatusOfProcessedData=12 to get DE pseudocentre encoding.~~ Not yet supported by ClimateDT IFS.
~~260510~~	~~Cloudy brightness temperature~~	~~clbt~~	K	3	1	14								~~HEALPIX.~~ Needs Simulated Satellite mode on, which we won't activate for ClimateDT.

Time resolution: Daily

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
129	Geopotential	z	m2 s-2	0	3	4	1								TEMP HEALPIX. Geopotential at surface gives orography. This output of constant fields is needed by applications.
172	Land-sea mask	lsm	(0 - 1)	2	0	0	1								TEMP HEALPIX. This output of constant fields is needed by applications.

Fields on pressure levels

Time resolution: Hourly

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
60	Potential vorticity	pv	K m2 kg-1 s**-1	2	14	100	model=ICON/IFS-NEMO HEALPIX
129	Geopotential	z	m2 s-2	3	4	100	model=ICON/IFS-NEMO HEALPIX
130	Temperature	t	K	0	0	100	model=ICON/IFS-NEMO HEALPIX
131	U component of wind	u	m s**-1	2	2	100	model=ICON/IFS-NEMO HEALPIX
132	V component of wind	v	m s**-1	2	3	100	model=ICON/IFS-NEMO HEALPIX
133	Specific humidity	q	kg kg**-1	1	0	100	model=ICON/IFS-NEMO HEALPIX
135	Vertical velocity	w	Pa s**-1	2	8	100	model=ICON/IFS-NEMO HEALPIX This is in "Pa s-1" not "m s-1".
157	Relative humidity	r	%	1	1	100	model=ICON/IFS-NEMO HEALPIX
246	Specific cloud liquid water content	clwc	kg kg**-1	1	83	100	model=ICON/IFS-NEMO HEALPIX
~~138~~	~~Vorticity (relative)~~	vo	~~s**-1~~	2	12	~~100~~	~~SH.~~ Not needed if we have U and V wind components.
~~155~~	~~Divergence~~	d	~~s**-1~~	2	13	~~100~~	~~SH.~~ Not needed if we have U and V wind components.
~~156~~	~~Geopotential height~~	gh	~~gpm~~	3	5	~~100~~	~~HEALPIX.~~ Not yet supported by ClimateDT IFS. Can be computed using geopotential - added below.

Fields on model levels

Sea-ice/snow/soil

Time resolution: Hourly
5 model levels: (1, ..., 5)

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
228141	Snow depth water equivalent	sd	kg m**-2	0	1	60	114								model=IFS-NEMO HEALPIX. Depth of snow with conversion to water. WMO unit.

Fields on height levels

Time resolution: Hourly

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
228246	100 metre U wind component	100u	m s**-1	0	2	2	103	0	100						model=IFS-NEMO HEALPIX
228247	100 metre V wind component	100v	m s**-1	0	2	3	103	0	100						model=IFS-NEMO HEALPIX

Mean encodings

Fields on a single level or surface

Sea ice

Time resolution: 1 x daily

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
263000	Time-mean sea ice thickness	avg_sithick	m	10	2	1	174	missing	missing	176	missing	missing	model=ICON/IFS-NEMO O2D
263001	Time-mean sea ice area fraction	avg_siconc	Fraction	10	2	0	174	missing	missing	176	missing	missing	model=ICON/IFS-NEMO O2D
263003	Time-mean eastward sea ice velocity	avg_siue	m s**-1	10	2	4	174	missing	missing	176	missing	missing	model=ICON/IFS-NEMO O2D
263004	Time-mean northward sea ice velocity	avg_sivn	m s**-1	10	2	5	174	missing	missing	176	missing	missing	model=ICON/IFS-NEMO O2D
263008	Time-mean sea ice volume per unit area	avg_sivol	m3 m-2	10	2	15	174	missing	missing	176	missing	missing	model=IFS-NEMO O2D
263009	Time-mean snow volume over sea ice per unit area	avg_snvol	m3 m-2	10	2	16	173	missing	missing	175	missing	missing	model=ICON/IFS-NEMO O2D
263021	Time-mean X-component of sea ice velocity	avg_six	m s**-1	10	2	24	174	missing	missing	176	missing	missing	model=IFS-NEMO O2D
263022	Time-mean Y-component of sea ice velocity	avg_siy	m s**-1	10	2	25	174	missing	missing	176	missing	missing	model=IFS-NEMO O2D

Ocean

Time resolution: 1 x daily~~, 1 x 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
263100	Time-mean sea surface practical salinity	avg_sos	g kg**-1	10	3	3	160	0	0	missing	missing	missing	model=IFS-NEMO O2D
263101	Time-mean sea surface temperature	avg_tos	K	10	3	0	160	0	0	missing	missing	missing	model=IFS-NEMO O2D
263114	Time-mean ocean mixed layer depth defined by sigma theta 0.03 kg m-3	avg_mlotst030	m	10	4	14	169	2	3	missing	missing	missing	model=ICON O2D
263121	Time-mean vertically-integrated heat content in the upper 300 m	avg_hc300m	J m**-2	10	4	22	160	0	0	160	0	300	model=IFS-NEMO O2D
263122	Time-mean vertically-integrated heat content in the upper 700 m	avg_hc700m	J m**-2	10	4	22	160	0	0	160	0	700	model=IFS-NEMO O2D
263124	Time-mean sea surface height	avg_zos	m	10	3	1	160	0	0	missing	missing	missing	model=ICON/IFS-NEMO O2D
~~263145~~	~~Time-mean sea surface salinity~~	~~avg_sss~~	~~kg kg**-1~~	10	3	21	~~160~~	0	0	~~missing~~	~~missing~~	~~missing~~	~~O2D.~~ Will use practical salinity.

Fields on model levels

Ocean

Time resolution: 1 x daily~~, 1 x monthly~~

param Id	name	short Name	units	discipline	parameter Category	parameter Number	type Of First Fixed Surface	type Of Second Fixed Surface	type Of Statistical Processing	comments
263500	Time-mean sea water practical salinity	avg_so	g kg**-1	10	4	21	168	168	0	model=ICON/IFS-NEMO O3D
263501	Time-mean sea water potential temperature	avg_thetao	K	10	4	18	168	168	0	model=ICON/IFS-NEMO O3D
263505	Time-mean northward sea water velocity	avg_von	m s**-1	10	4	24	168	168	0	model=ICON/IFS-NEMO O3D
263506	Time-mean eastward sea water velocity	avg_uoe	m s**-1	10	4	23	168	168	0	model=ICON/IFS-NEMO O3D
263507	Time-mean upward sea water velocity	avg_wo	m s**-1	10	4	27	168	168	0	model=ICON/IFS-NEMO O3D
~~263516~~	~~Time-mean sea water salinity~~	~~salo~~	~~kg kg**-1~~	10	4	3	~~168~~	~~168~~		~~O3D.~~ Will use practical salinity.

Accumulated encodings

Fields on a single level or surface

Atmosphere

Time resolution: Hourly accumulation

param Id	name	short Name	units	discipline	parameter Category	parameter Number	type Of First Fixed Surface	type Of Second Fixed Surface	type Of Statistical Processing	local Tables Version	comments
8	Surface runoff	sro	m	2	0	202	1		1	1	model=IFS-NEMO HEALPIX ECMWF unit
9	Sub-surface runoff	ssro	m	2	0	204	1		1	1	model=IFS-NEMO HEALPIX ECMWF unit
144	Snowfall	sf	m of water equivalent	0	1	198	1		1	1	model=IFS-NEMO HEALPIX ECMWF unit
146	Surface sensible heat flux	sshf	J m**-2	0	0	11	1		1		model=IFS-NEMO HEALPIX
147	Surface latent heat flux	slhf	J m**-2	0	0	10	1		1		model=ICON/IFS-NEMO HEALPIX
169	Surface short-wave (solar) radiation downwards	ssrd	J m**-2	0	4	7	1		1		model=ICON/IFS-NEMO HEALPIX
175	Surface long-wave (thermal) radiation downwards	strd	J m**-2	0	5	3	1		1		model=ICON/IFS-NEMO HEALPIX
176	Surface net short-wave (solar) radiation	ssr	J m**-2	0	4	9	1		1		model=ICON/IFS-NEMO HEALPIX
177	Surface net long-wave (thermal) radiation	str	J m**-2	0	5	5	1		1		model=ICON/IFS-NEMO HEALPIX
178	Top net short-wave (solar) radiation	tsr	J m**-2	0	4	9	8		1		model=ICON/IFS-NEMO HEALPIX
179	Top net long-wave (thermal) radiation	ttr	J m**-2	0	5	5	8		1		model=ICON/IFS-NEMO HEALPIX
180	Time-integrated eastward turbulent surface stress	ewss	N m**-2 s	0	2	62	1		1		model=IFS-NEMO HEALPIX
181	Time-integrated northward turbulent surface stress	nsss	N m**-2 s	0	2	63	1		1		model=IFS-NEMO HEALPIX
182	Evaporation	e	m of water equivalent	0	1	199	1		1	1	model=IFS-NEMO HEALPIX ECMWF unit
212	TOA incident short-wave (solar) radiation	tisr	J m**-2	0	4	7	8		1		model=IFS-NEMO HEALPIX
228	Total precipitation	tp	m	0	1	193	1	255	1	1	model=IFS-NEMO HEALPIX ECMWF unit
260654	Time-integrated eastward turbulent surface stress due to surface roughness	etsssr	N m**-2 s	0	2	66	1		1		model=ICON HEALPIX
260655	Time-integrated northward turbulent surface stress due to surface roughness	ntsssr	N m**-2 s	0	2	67	1		1		model=ICON HEALPIX
~~228144~~	~~Snowfall water equivalent~~	sf	~~kg m**-2~~	0	1	53	1		1		~~HEALPIX.~~ ~~WMO unit.~~ Not yet supported by ClimateDT IFS.
~~228228~~	~~Total Precipitation~~	tp	~~kg m**-2~~	0	1	52	1		1		~~HEALPIX.~~ ~~WMO unit.~~ Not yet supported by ClimateDT IFS.
~~231010~~	~~Surface runoff~~	~~surfro~~	~~kg m**-2~~	2	0	51	1		1		~~HEALPIX.~~ ~~WMO unit.~~ Not yet supported by ClimateDT IFS.
~~231012~~	~~Sub-surface runoff~~	~~ssurfro~~	~~kg m**-2~~	2	0	52	1		1		~~HEALPIX.~~ ~~WMO unit.~~ Not yet supported by ClimateDT IFS.
~~260259~~	~~Evaporation~~	~~eva~~	~~kg m**-2~~	0	1	79	1		1		~~HEALPIX.~~ ~~WMO unit.~~ Not yet supported by ClimateDT IFS.

Maximum encodings

There are no maximum encodings for this dataset.

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
260049	235031	228144
231	235033	146
X	235034	147
X	235035	169
X	235036	175
X	235037	176
X	235038	177
X	235039	178
X	235040	179
232	235043	260259
X	235053	212
260048	235055	228228
167	228004	X

Page tree

DestinE ClimateDT Parameters

Instantaneous encodings

Fields on a single level or surface

Atmosphere

Fields on pressure levels

Fields on model levels

Sea-ice/snow/soil

Fields on height levels

Mean encodings

Fields on a single level or surface

Sea ice

Ocean

Fields on model levels

Ocean

Accumulated encodings

Fields on a single level or surface

Atmosphere

Maximum encodings

Minimum encodings

Conversions