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Data details

UID 22
Name ERA-Interim
Description ERA-Interim combines information from meteorological observations with background information from a forecast model, using the data assimilation approach developed for numerical weather prediction. The reanalysis process blends observations (over a 12 hour period) with a short forecast to produce analyses, from which the short forecasts are run. ERA-Interim runs a few days behind real time. The ERA-Interim monthly means are generated by averaging 6 hourly analyses and 6 hourly forecast fields from the twice daily forecasts. Once ERA5 is available for the period 1979 to the present, ERA5 will be used to generate monthly products. ERA5 monthly means are generated from hourly fields. Potentially, all the observations, over the whole globe from the surface of the Earth to the top of the atmosphere for the whole 12 hours, as well as the forecast (which depends on past observations) can have an impact on any field at a given location in time and space. However, some in-situ observations will have a larger impact on a particular product than others.
Update Frequency Twice a day
Area Global
Temporal 01 Jan. 1979 -
Timeliness 3 days
Data Policy Full and Open
Data type Re-analysis
Copernicus service product
Data format NetCDF
Quality Control Procedure Automatic
Dissemination NRT Service
Inspire themes

Annex III: Atmospheric conditions
Geographical Coverage

Multiple Countries /Not a specific country
Status -
State Draft
Created on Feb. 21, 2018, 5:20 p.m.
Last modified on Dec. 20, 2021, 12:34 p.m.

Data Providers

Data provider UID Data provider Role Is network Created on Last modified on
831 European Centre for Medium-Range Weather Forecasts Originator Nov. 29, 2022, 5:42 p.m. Nov. 29, 2022, 5:42 p.m.

Requirements

Requirement UID Requirement Level of compliace Note Information costs Handling costs Created on Last modified on
86 Sea surface temperature Fully Feb. 27, 2018, 2:38 p.m. Nov. 24, 2023, 5:01 p.m.
271 Surface Meteorology (Hindcast) Partially Resolution: Increased spatial resolution would be beneficial, replacement is ERA5 Oct. 12, 2018, 12:46 p.m. Oct. 12, 2022, 11:33 a.m.
420 Hydrological modelling Fully April 27, 2020, 1:54 p.m. Dec. 20, 2021, 1:21 p.m.