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Dataset

 

ECMWF ERA-Interim: reduced N256 Gaussian gridded model level forecast parameter data (ggfm)

Update Frequency: Not Planned
Latest Data Update: 2019-10-26
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2014-08-26
Download Stats: last 12 months
Dataset Size: 118.07K Files | 5TB
Abstract

Model level forecast parameters on a reduced N256 Gaussian grid from the European Centre for Medium-Range Weather Forecasts (ECWMF) ERA-Interim programme.

The ERA-Interim global atmospheric reanalysis of the covers 1979 to August 2019. This follows on from the ERA-15 and ERA-40 re-analysis projects.

This subset of the ERA-Interim dataset contains 3 parameters on 60 model levels covering natural log of surface pressure (single level parameter), specific humidity and temperature.

Citable as:  European Centre for Medium-Range Weather Forecasts (2014): ECMWF ERA-Interim: reduced N256 Gaussian gridded model level forecast parameter data (ggfm). NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/a3a263cf63b2bd893b30df9e9a2f1571
Abbreviation: Not defined
Keywords: ECMWF, ERA, ERA, Interim, reanalysis, surface, model, Gaussian, N256, forecast

Details

Previous Info:
No news update for this record
Previously used record identifiers:
http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__ACTIVITY_aac2bc8a-2d33-11e4-ae22-00163e251233
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 are generated by the ERA-Interim project at European Centre for Medium-Range Weather Forecasts (ECMWF) before being prepared by ECMWF and uploaded to Centre for Environmental Data Analysis (CEDA) for ingestion into the archive.
Data Quality:
ECMWF quality controlled data.
File Format:
Data are GRIB formatted.

Related Documents

 ECMWF ERA Interim website
 ECMWF ERA Logo
 ECMWF pages on ERA Interim known issues
 Encoding and decoding GRIB data (GRIBEX)

Process overview

This dataset was generated by the computation detailed below.
Title

ECMWF ERA-Interim Re-analysis Model deployed on ECMWF Computer
Abstract

This computation involved: ECMWF ERA-Interim Re-analysis Model deployed on ECMWF Computer. The data assimilation system used to produce ERA-Interim is based on a 2006 release of the IFS (Cy31r2). The system includes a 4-dimensional variational analysis (4D-Var) with a 12-hour analysis window. The spatial resolution of the data set is approximately 80 km (T255 spectral) on 60 vertical levels from the surface up to 0.1 hPa.
Input Description

None
Output Description

None
Software Reference

None
  • units: (0 - 1)
  • long_name: Fraction of cloud cover
  • names: Fraction of cloud cover
  • units: kg kg**-1
  • long_name: Ozone mass mixing ratio
  • names: Ozone mass mixing ratio
  • units: kg kg**-1
  • long_name: Specific cloud ice water content
  • names: Specific cloud ice water content
  • units: kg kg**-1
  • long_name: Specific cloud liquid water content
  • names: Specific cloud liquid water content
  • standard_name: specific_humidity
  • units: kg kg**-1
  • long_name: Specific humidity
  • names: specific_humidity, Specific humidity

Co-ordinate Variables

Coverage
Temporal Range
Start time:
1979-01-01T00:00:00
End time:
2019-08-31T23:59:59
Geographic Extent

 
90.0000°
  
-180.0000°
  
180.0000°
 
-90.0000°
  
Related parties
Authors (1)
Publishers (1)
Principal Investigators (1)