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Due to the move of our Meteorological Archival and Retrieval System (MARS) to the new Data Centre in Bologna there will be no or degraded access to the archive datasets listed below at times between February and June 2022.
Please visit our dedicated data centre migration pages for more information.
Thank you for your patience and support during this important move, which will allow exciting scientific developments and overall better service.

  1. The products listed and described on this page are available to the public and their use is governed by the Creative Commons CC-4.0-BY licence and the ECMWF Terms of Use. This means that the data may be redistributed and used commercially, subject to appr ...

  2. A vast amount of data is archived daily containing IFS (Integrated Forecast System) experiments produced by ECMWF's Research Department or by Member States' users at ECMWF. Basically, an experiment can address any area of meteorology and it is a ...

  3. as well. A preliminary ERA5 back extension dataset  from 1950 to 1978 is now available. ERA5 combines  vast ...

  4. Atmospheric model Analysis runs for the four main synoptic hours 00, 06, 12 and 18 UTC; forecast runs out to 10 days based on the 00/12 UTC analysis forecast. Data is produced at the surface, on model levels, pressure levels, isentropic levels and levels ...

  5. ecCharts This licence provides access to ECMWF interactive ecCharts tool to visualise analysis and forecast products  Please note that access to the ecCharts is for End User use only  (internal).   ECMWF ecCharts web service is available and we are please ...

  6. Single prediction that uses observations prior information about the Earth-system ECMWF's highest-resolution model HRES Direct model output Products offers "High Frequency products"   4 forecast runs per day (00/06/12/18) (see dissemination ...

  7. Ensemble (ENS) of forecasts providing an estimate of the reliability of a single forecast. ENS offers  "High Frequency products"  until step 144: 4 daily runs: 00, 06, 12 and 18 UTC hourly until step 90 3-hourly from 93 to 144 Post-processed Pro ...

  8. HRES-WAM (High RESolution WAve Model) is coupled to the atmospheric model (HRES) and it is a Direct model output Products offers "High Frequency products": 4 forecast runs per day (00/06/12/18) (see dissemination schedule for details) Hourly ste ...

  9. Products based on an ensemble of forecasts providing an estimate of the reliability of a single forecast. The purchase of the "Basic Set" +72, +96, +120, +144, +168 hrs is a mandatory prerequisite for the purchase of time steps in the range 12 t ...

  10. SEAS comprises ensembles of individual forecasts coupled to an ocean model and post-processed products of average conditions (e.g. monthly averages) with the associated uncertainty. Products are available up to 7 months ahead. The following sub-sets are a ...