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Dataset

 

ECMWF ERA-40: reduced N80 Gaussian gridded surface level forecast data (ggfs)

Update Frequency: Not Planned
Latest Data Update: 2019-10-08
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2006-12-10
Download Stats: last 12 months
Dataset Size: 3.7M Files | 248GB

Abstract

This dataset contains N80 Gaussian gridded, surface level, forecast timestep parameters from the European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA) 40 program from September 1958 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 forecast data (ggfs). NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/c99949a873d24e8d887f42c7e4d3d45a/
Abbreviation: Not defined
Keywords: ECMWF, ERA, ERA-40, reanalysis, model, forecast, 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 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

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 wind gust since previous post-processing
  • units: J m**-2
  • names: Boundary layer dissipation
  • units: m
  • names: Boundary layer height
  • units: m
  • names: Convective precipitation
  • units: m of water equivalent
  • names: Convective snowfall
  • units: N m**-2 s
  • names: Eastward gravity wave surface stress
  • units: N m**-2 s
  • names: Eastward turbulent surface stress
  • units: m of water equivalent
  • names: Evaporation
  • units: (0 - 1)
  • names: Forecast albedo
  • units: ~
  • names: Forecast logarithm of surface roughness for heat
  • units: m
  • names: Forecast surface roughness
  • units: J m**-2
  • names: Gravity wave dissipation
  • units: N m**-2
  • names: Instantaneous eastward turbulent surface stress
  • units: kg m**-2 s**-1
  • names: Instantaneous moisture flux
  • units: N m**-2
  • names: Instantaneous northward turbulent surface stress
  • units: W m**-2
  • names: Instantaneous surface sensible heat flux
  • units: m
  • names: Large-scale precipitation
  • units: s
  • names: Large-scale precipitation fraction
  • units: m of water equivalent
  • names: Large-scale snowfall
  • units: K
  • names: Maximum temperature at 2 metres since previous post-processing
  • units: K
  • names: Minimum temperature at 2 metres since previous post-processing
  • units: N m**-2 s
  • names: Northward gravity wave surface stress
  • units: N m**-2 s
  • names: Northward turbulent surface stress
  • units: m
  • names: Runoff
  • units: m of water equivalent
  • names: Snow evaporation
  • units: m of water equivalent
  • names: Snowfall
  • units: m of water equivalent
  • names: Snowmelt
  • units: s
  • names: Sunshine duration
  • units: J m**-2
  • names: Surface latent heat flux
  • units: J m**-2
  • names: Surface net solar radiation
  • units: J m**-2
  • names: Surface net solar radiation, clear sky
  • units: J m**-2
  • names: Surface net thermal radiation
  • units: J m**-2
  • names: Surface net thermal radiation, clear sky
  • units: J m**-2
  • names: Surface sensible heat flux
  • units: J m**-2
  • names: Surface solar radiation downwards
  • units: J m**-2
  • names: Surface thermal radiation downwards
  • units: J m**-2
  • names: Top net solar radiation
  • units: J m**-2
  • names: Top net solar radiation, clear sky
  • units: J m**-2
  • names: Top net thermal radiation
  • units: J m**-2
  • names: Top net thermal radiation, clear sky
  • units: (0 - 1)
  • names: Total cloud cover

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°