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EPS Surface Control Forecast
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This part includes a brief description and the order forms
of this specific Data Set.
Use
Data finder
to check the availability of the data that interest you. If you wish to have a
costing or to place a request for data you can use our
On-line costing
system.
Description:
- period supported - 1 May 1994 to current date;
- each parameter is stored as a field of grid point values, in latitude rows starting at the north and working southwards; within each row values run from west to east starting at the 0° meridian;
-
data are stored in FM 92 GRIB using sufficient bits to ensure that the values represented can be retrieved to an accuracy consistent with the analysis method used.
The changes to this archive are as follows:
| 1 May 1994 | Internal data representation is in a N48 Gaussian grid (48 lines of latitude between the pole and the equator for each hemisphere, with a regular spacing of 1.875° between points along each latitude row) Data consist of daily forecasts from base time 1200 UTC. Forecast steps available are 0, 3, 6, 9 and 12, then 6 hourly to HH+120 then 12 hourly to HH+240. Fields available are snow depth, large scale precipitation, convective precipitation, snowfall, boundary layer dissipation, surface sensible heat flux, surface latent heat flux, MSL pressure, total cloud cover, u- and v-components of wind at 10m, 2 metre temperature, 2 metre dewpoint temperature, surface solar radiation, surface thermal radiation, top solar radiation, top thermal radiation, east-west surface stress, north-south surface stress, evaporation, low cloud cover, medium cloud cover, high cloud cover, latitudional gravity wave stress, meridional gravity wave stress, gravity wave dissipation, skin reservoir content, maximum temperature at 2m since previous post processing, minimum temperature at 2m since previous post processing, runoff, skin temperature, forecast albedo, forecast surface roughness, forecast log surface roughness for heat, soil temperature levels 1, 2, 3 and 4, soil wetness levels 1, 2, 3 and 4. |
| 10 December 1996 |
Internal data representation is in a N80 Quasi-regular Gaussian grid (80 lines with varying numbers of points along each row). |
|
31 July 1997 |
Forecast steps available are 0, 3, 6, 9 and 12, then 6 hourly to HH+120 then 12 hourly to HH+504 (21 days). |
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9 June 1999 |
Forecast steps available are 0, 3, 6, 9 and 12, then 6 hourly to HH+240 then 12 hourly to HH+504 (21 days). Fields added are orography and land-sea mask. |
|
27 June 2000 |
Fields added are wind gust at 10 metres, boundary layer height, sunshine duration. Soil wetness levels 1, 2, 3 and 4 replaced by volumetric soil wetness layers 1, 2, 3 and 4 |
|
21 November 2000 |
Internal data representation is in N128 Quasi-regular Gaussian grid (128 lines between the pole and the equator, with varying numbers of points along each row) |
| 25 March 2003 | 21 day forecasts from base time 0000 UTC are available |
| 7 October 2003 | Field added is convective available potential energy |
| 10 January 2005 | Fields added are total column ice water, total column liquid water; |
| 1 February 2006 | Internal data representation is a N200 Quasi-regular Gaussian grid (200 lines between the pole and the equator, with varying numbers of points along each row). |
Order forms :
If you wish to make an order from this data set please download the following two Acrobat (PDF) files :| 1. Instructions and Standard Order forms (common for all data sets): |
24 KB |
| 2. Data Set Order form (to select data from this specific data set only) : |
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16.09.2008 |
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