Data archive for monthly forecasting

Upper-air fields (archived every 12 hours):

129	Geopotential	1000	925	850	700	500	-	300	200	100	50	10	(also MEAN of each level)
130	Temperature	1000	925	850	700	500	400	300	200	100	50	10	(also MEAN of each level)
138	Vorticity (relative)	1000	925	850	700	500	-	300	200	100	50	10	(also MEAN of each level)
155	Divergence	1000	925	850	700	500	-	300	200	100	50	10	(also MEAN of each level)
133	Specific humidity (gridpoint)	1000	925	850	700	500	-	300	200	100	50	10	(also MEAN of each level)
001	Stream function	-	-	-	-	-	-	-	200	-	-	-	(also MEAN of each level)
002	Velocity potential	-	-	-	-	-	-	-	200	-	-	-	(also MEAN of each level)

03

Potential temperature on the 2E-6 potential vorticity surface

MEAN

 

Surface fields:

The following surface fields are archived every 6 hours (16 fields):

31	Sea-ice cover	MEAN/MAX/MIN/SD
39	Volumetric soil water layer 1	MEAN/MAX/MIN/SD
49	Wind gust at 10m	MEAN/MAX/MIN/SD
78	Total column liquid water	MEAN/MAX/MIN/SD *
79	Total column ice water	MEAN/MAX/MIN/SD *
123	10 m wind gust in the past 6 hours
134	Surface pressure
136	Total column water	MEAN/MAX/MIN/SD *
137	Total column water vapour	MEAN/MAX/MIN/SD *
139	Soil temp level  1	MEAN/MAX/MIN/SD *
142	Large scale precipitation	MEAN/MAX/MIN/SD
143	Convective precipitation	MEAN/MAX/MIN/SD
144	Snow fall	MEAN/MAX/MIN/SD *
146	Surface sensible heat flux	MEAN/MAX/MIN/SD
147	Surface latent heat flux	MEAN/MAX/MIN/SD
151	Mean sea level pressure	MEAN/MAX/MIN/SD *
159	Boundary layer height	MEAN/MAX/MIN/SD
164	Total cloud cover	MEAN/MAX/MIN/SD *
165	10 metre u wind component	MEAN/MAX/MIN/SD *
166	10 metre v wind component	MEAN/MAX/MIN/SD *
167	2 metre temperature	MEAN/MAX/MIN/SD *
168	2 metre dewpoint temperature	MEAN/MAX/MIN/SD
176	Surface solar radiation	MEAN/MAX/MIN/SD
177	Surface thermal radiation	MEAN/MAX/MIN/SD
180	East-West surface stress	MEAN/MAX/MIN/SD
181	North-South surface stress	MEAN/MAX/MIN/SD
182	Evaporation	MEAN/MAX/MIN/SD
189	Sunshine duration	MEAN/MAX/MIN/SD *
201	Max 2m temperature since last postprocessing	MEAN/MAX/MIN/SD *
202	Min 2m temperature since last postprocessing	MEAN/MAX/MIN/SD *
205	Runoff
228	Total precipitation	MEAN/MAX/MIN/SD *

The following surface fields are archived every 24 hours (16 fields):

34	Sea surface temperature	MEAN/MAX/MIN/SD
40	Volumetric soil water layer 2	MEAN/MAX/MIN/SD
41	Volumetric soil water layer 3	MEAN/MAX/MIN/SD
42	Volumetric soil water layer 4	MEAN/MAX/MIN/SD
141	Snow depth	MEAN/MAX/MIN/SD
169	Surface solar radiation downwards	MEAN/MAX/MIN/SD
170	Soil temp level 2	MEAN/MAX/MIN/SD)
175	Surface thermal radiation downwards	MEAN/MAX/MIN/SD
178	Top solar radiation	MEAN/MAX/MIN/SD
179	Top thermal radiation	MEAN/MAX/MIN/SD

The following field is archive only for the control every 24 hours: forecast (type=cf):

129	Geopotential
172	Land/sea mask
173	Surface roughnessk
174	Albedo

The following derived fields are not archived directly, but their weekly statistics are calculated:

207

10m scalar wind speed

MEAN/MAX/MIN/SD

Wave Model

Weekly Means anomalies and weekly mean ensemble mean anomalies

All pressure levels fields except levels 400 and 300 hPa and all surface fields indicated with a * in the tables above.

Significance:

Only 4 variables have the value of the significance of the statistical test archived:

139.234: Surface temperature

167.234: 2-metre temperature

151.234 : Mean sea-level pressure

228.234: Total precipitation

Probabilities (since 30 June 2005):

Event probabilities:

Parameter name	Acronym	Grib code	Table 2 version
2m temperature warm anomaly of at least 2K	2TWA2K	1	131
2m temperature warm anomaly of at least 1K	2TWA1K	2	131
2m temperature warm anomaly of at least 0K	2TWA0K	3	131
2m temperature cold anomaly of at least 1K	2TCA1K	4	131
2m temperature cold anomaly of at least 2K	2TCA2K	5	131
Total precipitation anomaly of at least 20 mm/week	TPAGT20	6	131
Total precipitation anomaly of at least 10 mm/week	TPAGT10	7	131

Probability distribution :

Quantile		Distribution	Number	Total number	Mars request
quintile	1st	0 to 20%	1	5	1:5
	2nd	20 to 40%	2	5	2:5
	3rd	40 to 60%	3	5	3:5
	4th	60 to 80%	4	5	4:5
	5th	80 to 100%	5	5	5:5
tercile	1st	0 to 33.333%	1	3	1:3
	2nd	33.333 to 66.666%	2	3	2:3
	3rd	66.666 to 100%	3	3	3:3
decile	1st	0 to 10%	1	10	1:10
	10th	90 to 100%	10	10	10:10

Probabilty boundary:

Quantile		Distribution	Number	Total number	Mars request
quintile	1st	20%	1	5	1:5
	2nd	40%	2	5	2:5
	3rd	60%	3	5	3:5
	4th	80%	4	5	4:5
tercile	1st	33.333%	1	3	1:3
	2nd	66.666%	2	3	2:3
decile	1st	10%	1	10	1:10
	10th	90%	9	10	9:10

EPSgrams

Only 4 variables have the values of their EPSgrams archived:

167.128: 2-meter temperature

207.128: 10 metre wind speed

164.128 : total cloud cover

228.172: Total precipitation

Ocean fields:

Ocean data is output in different sections, H = horizontal, Z = zonal, M = meridional. There are also sections that include the time dimension: Z=longitude-time, M=latitude-time and V=depth-time. Each of these sections is a two-dimensional field, with a particular orientation in space and time. Each forecast ensemble member archives the output listed below. The ocean data are archived together with the atmosphere data, and are distinguished by the 'LEVTYPE' attribute, which is set to 'DEPTH' or 'DP'.

The following instantaneous fields are written every 24 hours. They should allow a rough estimate of drift in the ocean, and give a snapshot of any numerical problems.

Instantaneous fields:

Section	Code	Depth	Name
H	157.151	0	Absorbed solar radiations
H	164.151	0	Averaged potential tempratue in the upper 300m
H	156.151	5	Net surface heat flux
H	158.151	5	Precipitation-Evaporation
H	145.151	0	Sea-level
H	163.151	0	20 degrees isotherm depth
H	153.151	0	U stress
H	154.151	0	V stress
H	129.151	5	Ocean potential temperature
H	131.151	5	U velocity
H	132.151	5	V velocity

 

Section	Code	Latitude	Name
Z	129	0	Potential temperature
Z	130	0	Salinity
Z	131	0	u-velocity

The following accumulated fields are written once per month during the forecasts. Monthly means can be derived from them. They are the main fields for diagnosing the oceanic behaviour of the coupled model forecasts.
Accumulated horizontal fields are:

Section	Code	Depth	Name
H	163.151	0	20 degree isotherm depth
H	157.151	0	Absorbed solar radiation
H	164,151	0	Averaged potential temperature in the upper 300 meters
H	175.151	0	Averaged salinity in the upper 300 meters
H	148.151	0	Mixed-layer depth
H	156.151	0	Net surface heat flux
H	158-151	0	Precipitation - Evaporation
H	145.151	0	Sea level
H	153.151	0	U-stress
H	154.151	0	V-stress
H	129.151	0/5/15/25/35/46.5	Ocean potential temperature
H	130.151	0/5/15/25/35/46.5	Salinity
H	131.151	0/5/15/25/35/46.5	U-velocity
H	132.151	0/5/15/25/35/46.5	V-velocity

Accumulated vertical zonal sections are:

Accumulated vertical meridional sections are:

Several so-called time series fields are also produced. These allow detailed examination of the evolution of certain fields along given lines of latitude or longitude. In all cases the temporal resolution is daily.

Lines of latitude are: