Dataset
ECMWF ERA-Interim: reduced N256 Gaussian gridded model level analysis time parameter data (ggam)
Abstract
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 5 parameters on 60 model levels: specific humidity, ozone mass mixing ratio, cloud liquid and ice water content and cloud cover.
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__ACTIVITY_cddcf9e8-a77d-11e2-aea1-00163e251233
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| 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.
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| File Format: |
Data are GRIB formatted.
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Process overview
| 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
- units: kg kg**-1
- units: kg kg**-1
- long_name: Ozone mass mixing ratio
- units: kg kg**-1
- long_name: Specific cloud ice water content
- units: kg kg**-1
- long_name: Specific cloud liquid water content
- standard_name: specific_humidity
- units: kg kg**-1
- long_name: Specific humidity
Co-ordinate Variables
Temporal Range
1979-01-01T00:00:00
2019-08-31T23:59:59
Geographic Extent
90.0000° |
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-180.0000° |
180.0000° |
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-90.0000° |