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 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 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° |
||
-180.0000° |
180.0000° |
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-90.0000° |