Dataset
ECMWF ERA-Interim: reduced N256 Gaussian gridded synoptic monthly mean analysed potential vorticity level parameter data (hgav)
Abstract
ERA-Interim is the latest European Centre for Medium-Range Weather Forecasts (ECMWF) global atmospheric reanalysis of the period 1979 to August 2019. This follows on from the ERA-15 and ERA-40 re-analysis projects.
The dataset includes synoptic monthly mean analysed potential vorticity level data on a reduced N256 Gaussian grid. Data are available at the 00, 06, 12 and 18 UT analysis times.
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 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 BADC for ingestion into the archive. |
| Data Quality: |
ECMWF quality controlled data.
|
| File Format: |
Data are CF-compliant NetCDF formatted.
|
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: m**2 s**-2
- long_name: Geopotential
- standard_name: geopotential
- var_id: Z
- var_id: O3
- units: kg kg**-1
- long_name: Ozone mass mixing ratio
- units: K
- long_name: Potential temperature
- var_id: PT
- units: Pa
- long_name: Pressure
- var_id: PRES
- standard_name: specific_humidity
- units: kg kg**-1
- long_name: Specific humidity
- var_id: Q
- standard_name: eastward_wind
- units: m s**-1
- long_name: U velocity
- var_id: U
- standard_name: northward_wind
- units: m s**-1
- long_name: V velocity
- var_id: V
- var_id: pv
- long_name: pv
- units: 1e-6 K m2 kg-1 s-1
- var_id: t
- long_name: t
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- var_id: latitude
- long_name: latitude
- units: degrees_east
- standard_name: longitude
- var_id: longitude
- long_name: longitude
Temporal Range
1979-01-01T00:00:00
2019-08-31T23:59:59
Geographic Extent
90.0000° |
||
-180.0000° |
180.0000° |
|
-90.0000° |