Dataset
ECMWF ERA-40: reduced N80 Gaussian gridded surface level analysis data (ggas)
Update Frequency: Not Planned
Latest Data Update: 2019-03-25
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2006-12-10
Download Stats: last 12 months
Dataset Size: 3.02M Files | 200GB
Abstract
This dataset contains N80 Gaussian gridded, surface level, analysis timestep parameters from the European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA) 40 program from September 1957 to August 2002. ERA-40 followed on from the ERA-15 re-analysis project. Access limited to UK based academic researchers only. These data are GRIB formatted.
Citable as: European Centre for Medium-Range Weather Forecasts (2006): ECMWF ERA-40: reduced N80 Gaussian gridded surface level analysis data (ggas). NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/be182d3928fe4ef0bad1a2b3086dbdb2/
Abbreviation: Not defined
Keywords: ECMWF, ERA, ERA-40, reanalysis, model, surface level
Details
| Previous Info: |
No news update for this record
|
|---|---|
| Previously used record identifiers: |
No related previous identifiers.
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| Access rules: |
Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access.
Use of these data is covered by the following licence(s): https://artefacts.ceda.ac.uk/licences/specific_licences/ecmwf-era-products.pdf When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data were generated by the ERA-40 project at European Centre for Medium-Range Weather Forecasts (ECMWF) and stored within ECMWF's archives. The BADC then obtained a copy from the ECMWF archived and ingested into the BADC archives to aid wider academic use of these data. |
| Data Quality: |
ECMWF quality controlled data.
|
| File Format: |
Data are GRIB formatted
|
Related Documents
| ECMWF ERA 40 website |
| ECMWF ERA Logo |
| Encoding and decoding GRIB data (GRIBEX) |
Process overview
This dataset was generated by the computation detailed below.
| Title | ECWF ERA-40 data assimilation system deployed on ECMWF Computer |
| Abstract | This computation involved: ERA-40 data assimilation system deployed on ECMWF Computer. |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
- units: m s**-1
- names: 10 metre U wind component
- units: m s**-1
- names: 10 metre V wind component
- units: K
- names: 2 metre dewpoint temperature
- units: K
- names: 2 metre temperature
- units: (0 - 1)
- names: Albedo
- units: radians
- names: Angle of sub-gridscale orography
- units: ~
- names: Anisotropy of sub-gridscale orography
- units: ~
- names: Charnock
- units: m**2 s**-2
- names: Geopotential
- units: (0 - 1)
- names: High cloud cover
- units: (0 - 1)
- names: High vegetation cover
- units: K
- names: Ice temperature layer 1
- units: K
- names: Ice temperature layer 2
- units: K
- names: Ice temperature layer 3
- units: K
- names: Ice temperature layer 4
- units: (0 - 1)
- names: Land-sea mask
- units: ~
- names: Logarithm of surface roughness length for heat
- units: (0 - 1)
- names: Low cloud cover
- units: (0 - 1)
- names: Low vegetation cover
- units: Pa
- names: Mean sea level pressure
- units: (0 - 1)
- names: Medium cloud cover
- units: K
- names: Sea surface temperature
- units: (0 - 1)
- names: Sea-ice cover
- units: m of water equivalent
- names: Skin reservoir content
- units: K
- names: Skin temperature
- units: ~
- names: Slope of sub-gridscale orography
- units: (0 - 1)
- names: Snow albedo
- units: kg m**-3
- names: Snow density
- units: m of water equivalent
- names: Snow depth
- units: K
- names: Soil temperature level 1
- units: K
- names: Soil temperature level 2
- units: K
- names: Soil temperature level 3
- units: K
- names: Soil temperature level 4
- units: ~
- names: Standard deviation of orography
- units: m
- names: Surface roughness
- units: K
- names: Temperature of snow layer
- units: (0 - 1)
- names: Total cloud cover
- units: kg m**-2
- names: Total column ozone
- units: kg m**-2
- names: Total column water
- units: kg m**-2
- names: Total column water vapour
- units: ~
- names: Type of high vegetation
- units: ~
- names: Type of low vegetation
- units: m**3 m**-3
- names: Volumetric soil water layer 1
- units: m**3 m**-3
- names: Volumetric soil water layer 2
- units: m**3 m**-3
- names: Volumetric soil water layer 3
- units: m**3 m**-3
- names: Volumetric soil water layer 4
Co-ordinate Variables
Coverage
Temporal Range
Start time:
1957-09-29T23:00:00
End time:
2002-08-31T22:59:59
Geographic Extent
90.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |
Related parties