Datasets affected
Resolution
Unchanged
Horizontal | Vertical |
---|
Atmospheric (unchanged) - HRES: TL799
- ENS: Leg A TL399
Wave (unchanged) - HRES: 0.25 degrees
- ENS: 0.5 degrees
- LAW: 0.1 degrees
|
Atmospheric (unchanged)
|
Meteorological content
- Use of persisted SST anomalies in all atmospheric forecasts
- Daily ocean-coupling of days 10 to 15 of 0000 UTC ENS forecasts
- Modified EFI products using the new unified re-forecasts
Meteorological impact
Previously, the sea surface temperatures were persisted from the initial conditions during both the deterministic and the medium-range ENS forecasts. With the implementation of the unified VarEPS monthly system, the sea surface temperature anomalies relative to the 1979-2001 ERA-40 daily climates are persisted. The anomalies are added to the ERA-40 daily climate to produce the full SST field.
Technical content
- Monthly Forecast run once per week from 0000 UTC on a Thursday as an extension of the 15 day ENS forecast from this base time
- New GRIB description for all Monthly Forecast products, analogous to the current medium-range ENS data
Model ID
- Atmospheric: 131
- Ocean wave: 116
- Limited-area ocean wave: 216