2c8f38fac04945b89cf12d6e9c928c6f English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 5971cb20fae94540b862ae3ed3204c3f dataset NERC EDS Centre for Environmental Data Analysis 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk pointOfContact 2026-04-12T02:22:52 UK GEMINI 2.3 WGS 84 ECMWF ERA5: surface level invariant parameter data 2022-04-13T08:22:38 publication 2022-04-13T08:22:38 creation https://catalogue.ceda.ac.uk/uuid/2c8f38fac04945b89cf12d6e9c928c6f 2c8f38fac04945b89cf12d6e9c928c6f NERC EDS Centre for Environmental Data Analysis This dataset contains ERA5 surface level invariant parameter data. ERA5 is the 5th generation reanalysis project from the European Centre for Medium-Range Weather Forecasts (ECWMF) - see linked documentation for further details. This dataset contains a limited selection of all available variables and have been converted to netCDF from the original GRIB files held on the ECMWF system. They have also been translated onto a regular latitude-longitude grid during the extraction process from the ECMWF holdings. For a fuller set of variables please see the linked Copernicus Data Store (CDS) data tool, linked to from this record. Model level analysis and surface analysis and forecast data to complement this dataset are also available. Data from a 10 member ensemble, run at lower spatial and temporal resolution, were also produced to provide an uncertainty estimate for the output from the single high resolution (hourly output at 31 km grid spacing) 'HRES' realisation producing data in this dataset. The ERA5 global atmospheric reanalysis of the covers 1979 to 2 months behind the present month. This follows on from the ERA-15, ERA-40 rand ERA-interim re-analysis projects. An initial release of ERA5 data (ERA5t) is made roughly 5 days behind the present date. These will be subsequently reviewed ahead of being released by ECMWF as quality assured data within 3 months. CEDA holds a 6 month rolling copy of the latest ERA5t data. See related datasets linked to from this record. However, for the period 2000-2006 the initial ERA5 release was found to suffer from stratospheric temperature biases and so new runs to address this issue were performed resulting in the ERA5.1 release (see linked datasets). Note, though, that Simmons et al. 2020 (technical memo 859) report that "ERA5.1 is very close to ERA5 in the lower and middle troposphere." but users of data from this period should read the technical memo 859 for further details. European Centre for Medium-Range Weather Forecasts (ECMWF) author unknown author NERC EDS Centre for Environmental Data Analysis custodian 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk custodian NERC EDS Centre for Environmental Data Analysis distributor 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk distributor European Centre for Medium-Range Weather Forecasts (ECMWF) principal_investigator unknown principalInvestigator NERC EDS Centre for Environmental Data Analysis point_of_contact 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk pointofContact European Centre for Medium-Range Weather Forecasts (ECMWF) point_of_contact unknown pointofContact NERC EDS Centre for Environmental Data Analysis publisher 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk publisher notPlanned dataset ECMWF ERA ERA5 reanalysis invariant surface level atmospheric conditions theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication otherRestrictions Access to these data is available to any registered CEDA user. Please Login or Register for a CEDA account to gain access. otherRestrictions Under the following licence https://artefacts.ceda.ac.uk/licences/specific_licences/ecmwf-era-products.pdf, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. grid English climatologyMeteorologyAtmosphere -180.0 180.0 -90.0 90.0 1979-01-01T00:00:00 Data are NetCDF formatted. NERC EDS Centre for Environmental Data Analysis Data Center Contact 01235446432 RAL Space STFC Rutherford Appleton Laboratory, Harwell Campus Didcot OX11 0QX United Kingdom support@ceda.ac.uk distributor https://catalogue.ceda.ac.uk/uuid/2c8f38fac04945b89cf12d6e9c928c6f CEDA Data Catalogue Page Detail and access information for the resource information http://data.ceda.ac.uk/badc/ecmwf-era5/data/invariants DOWNLOAD Download Data download https://doi.org/10.21957/RCXQFMG0 ECMWF Technical Memo 859: Simmons, A. et al., 2020: Global stratospheric temperature bias and other stratospheric aspects of ERA5 and ERA5.1. ECMWF No further details. information http://www.ecmwf.int/en/research/climate-reanalysis/era-interim ECMWF ERA5 website No further details. information http://help.ceda.ac.uk/article/106-netcdf netCDF user guide No further details. information https://confluence.ecmwf.int/display/CKB/ERA5%3A+data+documentation ERA5 documentation page from ECMWF, including list of known issues No further details. information https://artefacts.ceda.ac.uk/graphics/logos/ecmwf_era_logo.gif ECMWF ERA Logo No further details. information dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Data are generated by the ERA5 project at European Centre for Medium-Range Weather Forecasts (ECMWF) before being prepared by CEDA staff using the ECMWF system and uploaded to Centre for Environmental Data Analysis (CEDA) for ingestion into the archive. Data are translated over to a regular latitude-longitude grid and converted to netCDF format ahead of transfer to the CEDA system.