Operational archive

Atmospheric Model high resolution 15-day forecast (HRES)

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) 
  • Hourly steps to step 144 for all four runs

Not all post-processed Products are available at 06/18 runs or in hourly steps.

Ocean Wave Model high resolution 15-day forecast (HRES-WAM)

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 steps to step 90 for all four runs

The  model computes between the latitudes -78 and 90, the output grid is artificially extended to -90.

Atmospheric model Ensemble 15-day forecast (ENS)

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

Most Post-processed Products are not available at 06/18 runs or in hourly steps. An exception are Tropical Cycle tracks (set III-viii) which is available for all daily runs: 00, 06, 12 and 18 UTC.

Ocean Wave Model Ensemble 15-day forecast (ENS-WAM)

Products based on an ensemble of forecasts providing an estimate of the reliability of a single forecast.

Products include:

  • Wave fields
  • Probabilities - Instantaneous weather events
  • Probabilities - Averaged weather events
  • Extreme Forecast Index (EFI) 1-day ranges
  • Shift of Tails (SOT) 1-day ranges

Atmospheric Model Ensemble extended forecast (ENS extended)

ENS extended products comprise ensembles of individual forecasts up to 46 days and post-processed products of average conditions (e.g. weekly averages) and the associated uncertainty.

The forecast products are available daily. Re-forecast products are only available for Monday and Thursday runs.

Seasonal 7-month forecast (SEAS)

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.

Deterministic AIFS forecast (AIFS)

Single forecast runs produced by the ECMWF Artificial Intelligence Forecasting System (AIFS) deterministic model.

  • 4 forecast runs per day (00/06/12/18)
  • 6 hourly steps to 360 (15 days)

The resolution and internal representation of the archive may change according to changes in ECMWF's operational practice.

Type
Operational data
Provided by
ECMWF