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Dataset

 

ECMWF ERA-Interim: reduced N256 Gaussian gridded pressure level analysis time parameter data (ggap)

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: 59.41K Files | 17TB
Abstract

Pressure level analysis time 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 16 parameters on 37 pressure levels.

Citable as:  European Centre for Medium-Range Weather Forecasts (2014): ECMWF ERA-Interim: reduced N256 Gaussian gridded pressure level analysis time parameter data (ggap). NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/cae68b35c821ce036f28eda09e7d3a7c
Abbreviation: Not defined
Keywords: ECMWF, ERA, ERA, Interim, reanalysis, surface, model, Gaussian, N256, analysis, pressure level

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_3ad42922-2d33-11e4-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 netCDF formatted.

Related Documents

 ECMWF ERA Logo
 ECMWF ERA Interim website
 netCDF user guide
 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: Cloud cover
  • var_id: CC
  • names: CC, Cloud cover
  • units: kg kg**-1
  • long_name: Cloud ice water content
  • var_id: CIWC
  • names: CIWC, Cloud ice water content
  • units: kg kg**-1
  • long_name: Cloud liquid water content
  • var_id: CLWC
  • names: Cloud liquid water content, CLWC
  • units: s**-1
  • standard_name: divergence_of_wind
  • long_name: Divergence
  • var_id: D
  • names: Divergence, divergence_of_wind, D
  • units: m**2 s**-2
  • long_name: Geopotential
  • standard_name: geopotential
  • var_id: Z
  • names: Geopotential, geopotential, Z
  • var_id: O3
  • units: kg kg**-1
  • long_name: Ozone mass mixing ratio
  • names: O3, Ozone mass mixing ratio
  • var_id: PV
  • units: K m**2 kg**-1 s**-1
  • long_name: Potential vorticity
  • names: Potential vorticity, PV
  • standard_name: relative_humidity
  • units: %
  • long_name: Relative humidity
  • var_id: R
  • names: Relative humidity, relative_humidity, R
  • standard_name: specific_humidity
  • units: kg kg**-1
  • long_name: Specific humidity
  • var_id: Q
  • names: specific_humidity, Specific humidity, Q
  • units: m**2 s**-1
  • long_name: Stream function
  • standard_name: atmosphere_relative_vorticity
  • var_id: STRF
  • names: STRF, atmosphere_relative_vorticity, Stream function
  • units: K
  • standard_name: air_temperature
  • long_name: Temperature
  • var_id: T
  • names: Temperature, air_temperature, T
  • standard_name: eastward_wind
  • units: m s**-1
  • long_name: U velocity
  • var_id: U
  • names: eastward_wind, U, U velocity
  • standard_name: northward_wind
  • units: m s**-1
  • long_name: V velocity
  • var_id: V
  • names: northward_wind, V velocity, V
  • standard_name: divergence_of_wind
  • units: m**2 s**-1
  • long_name: Velocity potential
  • var_id: VPOT
  • names: divergence_of_wind, Velocity potential, VPOT
  • var_id: W
  • units: Pa s**-1
  • standard_name: vertical_air_velocity_expressed_as_tendency_of_pressure
  • long_name: Vertical velocity
  • names: W, Vertical velocity, vertical_air_velocity_expressed_as_tendency_of_pressure
  • units: s**-1
  • var_id: VO
  • standard_name: atmosphere_relative_vorticity
  • long_name: Vorticity (relative)
  • names: Vorticity (relative), atmosphere_relative_vorticity, VO
  • units: mbar
  • var_id: p
  • long_name: p
  • names: p
  • var_id: t
  • long_name: t
  • names: t

Co-ordinate Variables

  • units: degrees_north
  • standard_name: latitude
  • var_id: latitude
  • long_name: latitude
  • names: latitude
  • units: degrees_east
  • standard_name: longitude
  • var_id: longitude
  • long_name: longitude
  • names: longitude
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)