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Dataset

 

ECMWF ERA-40: reduced N80 Gaussian gridded surface level analysis data (ggas)

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2006-12-10
Download Stats: last 12 months

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.
Access rules:
Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
Use of these data is covered by the following licence: http://licences.ceda.ac.uk/image/data_access_condition/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

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°