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Dataset

 

ECMWF ERA-40: daily monthly average reduced N80 Gaussian gridded potential vorticity level analysis data (ggav)

Update Frequency: Not Planned
Latest Data Update: 2003-12-18
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2006-12-10
Download Stats: last 12 months
Dataset Size: 3.7K Files | 253MB
Abstract

This dataset contains daily monthly average N80 Gaussian gridded, potential vorticity level, analysis timestep parameters from the European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA) 40 program from January 1958 to December 2001. 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: daily monthly average reduced N80 Gaussian gridded potential vorticity level analysis data (ggav). NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/62d23625385a4d3c857c3921d10faa29
Abbreviation: Not defined
Keywords: ECMWF, ERA, ERA-40, reanalysis, surface, model, Gaussian, N256, analysis, potential vorticity 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

Related Documents

 ECMWF ERA 40 website
 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**2 s**-2
  • names: Geopotential
  • units: kg kg**-1
  • names: Ozone mass mixing ratio
  • units: K
  • names: Potential temperature
  • units: Pa
  • names: Pressure
  • units: kg kg**-1
  • names: Specific humidity
  • units: m s**-1
  • names: U component of wind
  • units: m s**-1
  • names: V component of wind

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
Authors (1)
Publishers (1)
Funders (1)