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.