Proposed resolution changesAtmospheric model| | | HRES | ENS |
|---|
| Leg A | Leg B / C |
|---|
| | Current | Upgrade | Current | Upgrade | Current | Upgrade |
|---|
| Spectral | TL1299 | TCO1279 | TL639 | TCO639 | TL319 | TCO319 |
|---|
| Gaussian grid | N640 | N1280 | N320 | N320 | N160 | N320 |
|---|
| Horizontal grid resolution | ~16 km | ~9 km | ~30 km | ~xx km | ~60 km | ~xx km |
|---|
| Dissemination (LL) | 0.125 | TBC | 0.25 | TBC | 0.5 | TBC |
|---|
Model Level
Vertical resolution | 137 | 137 | 91 | 91 | 91 | 91 |
|---|
- There will be no change in the number and definition of the pressure levels.
- The horizontal resolution of the ENS re-forecasts will be increased to match that of ENS.
- The horizontal resolution of the two ENS constant-resolution forecasts provided for calibration and validation purposes will be increased:
| | ENS calibration / validation |
|---|
| High resolution | Low resolution |
|---|
| | Current | Upgrade | Current | Upgrade |
|---|
| Spectral | TL639 | TCO639 | TL319 | TCO319 |
|---|
| Gaussian grid | N320 | N640 | N160 | N320 |
|---|
| Horizontal grid resolution | ~50 km | ~xx km | ~60 km | ~xx km |
|---|
Model Level
Vertical resolution | 91 | 91 | 91 | 91 |
|---|
Wave model| | HRES | ENS |
|---|
| Leg A | Leg B / C |
|---|
| | Current | Upgrade | Current | Upgrade | Current | Upgrade |
|---|
| Lat/Long | 0.25 | 0.125 | 0.5 | 0.25 | 0.5 | 0.25 |
|---|
| Horizontal grid resolution | ~28km | ~14km | ~55km | ~28km | ~55km | ~28km |
|---|
| Dissemination (LL) | 0.25 | TBC | 0.5 | TBC | 0.5 | TBC |
|---|
| Frequencies | 36 | 36 | 30 | 30 | 25 | 25 |
|---|
| Directions | 36 | 36 | 24 | 24 | 12 | 12 |
|---|
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