...

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:

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

...

Atmosphere

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

165

10 metre U wind component

10u

m s**-1

0

2

103

0

10

GG

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

166

10 metre V wind component

10v

m s**-1

0

2

3

103

0

10

GG

167

2 metre temperature

2t

K

0

103

0

2

GG

151

Mean sea level pressure

msl

Pa

0

3

0

101

1

GG

134

Surface pressure

sp

Pa

136

Total column water

tcw

kg m**-2

0

3

1

0

51

1

8

GG

136

137	Total column vertically-integrated water vapour

tcw

tcwv

kg m**-2

0

1

51

64

1

8

GG

168

2 metre dewpoint temperature

2d

151

Mean sea level pressure

msl

Pa

K103

0

6

3

0

2

101

GG

228235

Most-unstable CAPE

mucape

165

10 metre U wind component

10u

m s

J kg

**-1

0

2

7

103

6

0

17

10

GG

.
Used rather than 59; cape, which is phased out.

~~228236~~

~~Most-unstable CIN~~

~~mucin~~


166	10 metre V wind component	10v	m s

J kg

**-1

0

2

3

7

103

7

0

17

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.

10

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

228029

Instantaneous 10 metre wind gust

i10fg

m s**-1

0

2

22

103

0

10

GG

~~228050~~

~~Instantaneous total lightning flash density~~

~~litoti~~

228218

Convective rain rate

crr

kg m

km

**-2

day

s**-1

0

17

1

4

76

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 kg

kg m**-2 s

**-1

0

1

7

56

6

1

17

GG.

Not yet supported by ExtremesDT IFS

Used rather than 59; cape, which is phased out.
260015	Precipitation type	ptype	code table (4.201)	0	1	19									GG

31

Sea ice area fraction

~~164~~

~~Total cloud cover~~

~~tcc~~

ci

~~(0 - 1)~~

10

0

2

6

0

~~192~~

1

GG

8

34

Sea surface temperature

sst

K

10

3

0

1GG

~~231013~~

~~Reflectance in 0.4 micron channel~~

~~rfl04~~

%

3

1

30

1

GG.
ECMWF unit

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...

~~228164~~

~~Total Cloud Cover~~

~~tcc~~

%

0

6

1

8

~~3020~~	~~Visibility~~	~~vis~~	m	0	19	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					GG. Not yet supported by ExtremesDT IFS.
~~228050~~	~~Instantaneous total lightning flash density~~	~~litoti~~	~~km-2 day-1~~	0	17	4	1			8	GG

GG.
WMO unit

.
Not yet supported by ExtremesDT IFS.

~~164~~

~~228164~~

~~Total~~

cloud cover

~~Cloud Cover~~

~~tcc~~

~~(0 - 1)~~

%

0

6

~~192~~

1

8

1

GG.

ECMWF

WMO unit.
Not yet supported by ExtremesDT IFS.

78

Total column cloud liquid water

~~228221~~

~~Large scale snowfall rate water equivalent~~

~~lssfr~~

tclw

~~kg m**-2 s**-1~~

0

1

69

56

1

8

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

...

							GG. Not yet supported by ExtremesDT IFS.
~~228236~~	~~Most-unstable CIN~~	~~mucin~~	~~J kg**-1~~	0	7	7	17	GG. 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.

param Id	name	short Name	units	discipline	parameter Category	parameter Number	type Of

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
140221
Mean zero-crossing wave period
mp2
s
10
0
28

GG
140230
Mean wave direction
mwd
degrees
140229
Significant height of combined wind waves and swell
swh
m
10
0
3
14
101

GG
140232
140230
Mean wave
period
direction
mwp
mwd
s
degrees
10
0
15
14

GG
140231
Peak wave period
pp1d
s
10
0
34

GG
140229
Significant height of combined wind waves and swell
swh
m
140232
Mean wave period
mwp
s
10
0
3
15
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)

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

130	Temperature	t	K	0	0	0	100								GG
131	U component of wind	u	m s**-1	0	2

13
2
100
SH

GG
156
Geopotential height
gh
gpm
0
3
5
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
157
Relative humidity
r
%
138
Vorticity (relative)
vo
s**-1
0
1
2
1
12
100
GG

SH
130
155
Temperature
Divergence
t
K
d
s**-1
0
0
2
0
13
100
GG

SH
131
U component of wind
u
m s**-1
156
Geopotential height
gh
gpm
0
2
3
2
5
100

GG
132
V component of wind
v
m s**-1
157
Relative humidity
r
%
0
2
1
3
1
100

GG
138
Vorticity (relative)
vo
s**-1
0
2
12
100
SH

Fields on model levels

Atmosphere

Fields on model levels

Atmosphere

Time resolution: Hourly.

137 model 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.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 velocityetadots
75 Specific rain water content crwc kg kg**-1 0
2
1
32
85
105

GG. Not in official portfolio.
248Fraction of cloud covercc(0-1)
76 Specific snow water content cswc kg kg**-1 0
6
1
32
86
105

GG. Not in official portfolio.
260238
77
Geometric
Eta-coordinate vertical velocity
wz
etadot
m
s**-1 0 2
9
32
105

GG. Not in official portfolio
. Replaces 120; Exper
.
product
247Specific cloud ice water contentciwckg kg**-1
130 Temperature t K 0
1
0
84
0
105

GG. Not in official portfolio.
246Specific cloud liquid water contentclwckg kg
131 U component of wind u m s**-1 0
1
2
83
2
105

GG. Not in official portfolio.
133Specific humidityqkg kg
132 V component of wind v m s**-1 0
1
2
0
3
105

GG. Not in official portfolio.
75
133 Specific
rain water content
humidity
crwc
q kg kg**-1 0 1
85
0
105

GG. Not in official portfolio.
76Specific snow water contentcswckg kg
135 Vertical velocity w Pa s**-1 0
1
2
86
8
105

GG. Also called omega. Not in official portfolio.
130TemperaturetK
246 Specific cloud liquid water content clwc kg kg**-1 0
0
1
0
83
105

GG. Not in official portfolio.
131U component of windum s
247 Specific cloud ice water content ciwc kg kg**-1 0
2
1
2
84
105

GG. Not in official portfolio.
132
248
V component
Fraction of
wind
cloud cover
vm s**
cc (0-1) 0
2
6
3
32
105

GG. Not in official portfolio.
135
260238
Vertical
Geometric vertical velocity
w
wz
Pa
m s**-1 0 2
8
9
105

GG
. Also called omega
. Not in official portfolio. Replaces 120; Exper. product

Sea-ice/snow/soil

Time resolution:From 6-hourly to monthly 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

local Tables Version

comments

260360

Soil temperature

sot

K

2

3

18

1510015101GG.
Replaces 139; stl1
260360
Soil temperature
sot
K
2
3
18
1510115102GG.
Replaces 170; stl2
260360
Soil temperature
sot
K
2
3
18
1510215103GG.
Replaces 183; stl3
260360
Soil temperature
sot
K
2
3
18
1510315104
GG.
Replaces 236; stl4
260199
Volumetric soil moisture
vsw
m**3 m**-3
2
0
25
151
0
0
151
0
1
GG.
Replaces 39; swvl1
260199
Volumetric soil moisture
vsw
m**3 m**-3
2
0
25
151
0
1
151
0
2
GG.
Replaces 40; swvl2
260199
Volumetric soil moisture
vsw
m**3 m**-3
2
0
25
151
0
2
151
0
3
GG.
Replaces 41; swvl3
260199
Volumetric soil moisture
vsw
m**3 m**-3
2
0
25
151
0
3
N-1
151
0
4
N

GG.
For soil layer N.
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,...)

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						GG
228247	100 metre V wind component	100v	m s**-1	0	2	3	103	0	100						GG

Mean encodings

Fields on a single level or surface

...

Time resolution: 6 hourly means.

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
228058	Averaged total lightning flash density in the last 6 hours	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 accumsHourly accumulations.

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
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
Version
comments
142
Large-scale precipitation
lsp
m
0
1
196
1

1
1
GG.
WMO
ECMWF unit.
228
144
Total precipitation
Snowfall
tp
sf
m of water equivalent
0
1
193
198
1

1
1
GG.
ECMWF unit.
228228
Total Precipitation
tp
169
Surface short-wave (solar) radiation downwards
ssrd
J
kg
m**-2
0
1
4
52
7
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
1
5
67
3
1

1

GG
.
WMO unit.
228216
Accumulated freezing rain
fzra
m
176
Surface net short-wave (solar) radiation
ssr
J m**-2
0
1
4
194
9
1

1
1

GG
.
ECMWF unit.
177
Surface net long-wave (thermal) radiation
str
J
228143
Convective precipitation
cp
kg
m**-2
0
1
5
37
5
1

1

GG
180
178
Time-integrated eastward turbulent surface stress
ewss
Top net short-wave (solar) radiation
tsr
J
N
m**-2
s
0
2
4
62
9
1
8

1

GG
.
3062
179
Large-scale precipitation
lsp
Top net long-wave (thermal) radiation
ttr
J
kg
m**-2
0
1
5
54
5
1
8

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

1

GG
.
ECMWF unit
.
181
Time-integrated northward turbulent surface stress
nsss
N m**-2 s
0
2
63
1

1

GG.
228144
205
Snowfall water equivalent
Runoff
sf
ro
kg
m
**-
2
0
201

1
1
53
GG.
ECMWF unit.
228
Total precipitation
tp
m
0
1
193
1

1
1
GG.
WMO
ECMWF unit.
144
Snowfall
sf
3062
Large-scale precipitation
lsp
kg m**-2
m of water equivalent1
0
1
198
54
1

1

GG.
ECMWF
WMO unit.
176
Surface net short-wave (solar) radiation
ssr
228143
Convective precipitation
cp
kg
J
m**-2
0
4
1
9
37
1

1

GG
177
Surface net long-wave (thermal) radiation
str
228144
Snowfall water equivalent
sf
kg
J
m**-2
0
5
1
5
53
1

1

GG.
169
Surface short-wave (solar) radiation downwards
ssrd
J m**-2
0
4
WMO unit.
228216
Accumulated freezing rain
fzra
m
0
1
194
1
7

1
1
GG.
175
Surface long-wave (thermal) radiation downwards
strd
ECMWF unit.
228228
Total Precipitation
tp
kg
J
m**-2
0
5
1
3
52
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
4
1
9
67
8
1

1

GG.
179
Top net long-wave (thermal) radiation
ttr
WMO unit.
231002
Runoff water equivalent (surface plus subsurface)
rowe
kg
J 8
m**-2
2
0
5
5
42

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

Minimum encodings

There are no minimum encodings for this dataset.

...

The conversion between the base parameter, mean and accumulation is as follows for relevant parameters:

Inst paramId	Mean paramId	Accum paramId
...	...	...

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Versions Compared

Old Version 6

New Version 7

Key

Atmosphere

Wave

Wave

Ocean

Fields on pressure levels

Fields on model levels

Atmosphere

Fields on model levels

Atmosphere

Sea-ice/snow/soil

Fields on height levels

Mean encodings

Fields on a single level or surface

Accumulated encodings

Fields on a single level or surface

Atmosphere

Maximum encodings

Fields on a single level or surface

Atmosphere

Minimum encodings

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

.
181	Time-integrated northward turbulent surface stress	nsss	N m**-2 s	0	2	63	1						1		GG.

WMO unit.
231001	Accumulated freezing rain water equivalent	fzrawe	kg

WMO unit.
231002	Runoff water equivalent (surface plus subsurface)	rowe	kg

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Page History

Versions Compared

Old Version 6

New Version 7

Key

Atmosphere

Wave

Wave

Ocean

Fields on pressure levels

Fields on model levels

Atmosphere

Fields on model levels

Atmosphere

Sea-ice/snow/soil

Fields on height levels

Mean encodings

Fields on a single level or surface

Accumulated encodings

Fields on a single level or surface

Atmosphere

Maximum encodings

Fields on a single level or surface

Atmosphere

Minimum encodings