1. Forecast system version
System name: Météo-France system 5
First operational forecast run: July 2016
2. Configuration of the forecast model
Is it a coupled model ? yes
Coupling frequency: daily with OASIS software
2.1 Atmosphere and land surface
| Model | ARPEGE v6.1 |
|---|---|
| Horizontal resolution and grid | Tl255 0.7° Gauss reduced grid |
| Atmosphere vertical resolution | 91 layers |
| Top of atmosphere | top layer: 0-2 Pa |
| Soil levels | 3 layers (top, root, total) geographically dependent |
| Time step | 15 min |
Detailed documentation: ARPEGE documentation
Land surface model: Surfex 7.3
2.1 Ocean and cryosphere
| Ocean model | NEMO v3.2 |
|---|---|
| Horizontal resolution | 1° Orca grid |
| Vertical resolution | 42 levels |
| Time step | 1 hour |
| Sea ice model | Gelato v5 |
| Sea ice model resolution | 1° Orca grid |
| Sea ice model levels | |
| Wave model | None |
| Wave model resolution | NA |
Detailed documentation: NEMO documentation
3. Initialization and initial condition (IC) perturbations
3.1 Atmosphere and land
| Hindcast | Forecast | |
|---|---|---|
| Atmosphere initialization | ||
| Atmosphere IC perturbations | ||
Land Initialization | ||
| Land IC perturbations | ||
| Soil moisture initialization | ||
| Snow initialization | ||
| Unperturbed control forecast? |
Detailed documentation:
More DA details?
Data assimilation method for control analysis:
Horizontal and vertical resolution of perturbations: T42L91 SVs+ T399L137 EDA perturbations
Perturbations in +/- pairs: Yes
3.2 Ocean and cryosphere
| Hindcast | Forecast | |
|---|---|---|
| Ocean initialization | ||
| Ocean IC perturbations | ||
| Unperturbed control forecast? |
Detailed documentation:
More ocean data assimilation details?
Source and treatment of SST? (Other data sources - altimetry?)
4. Model uncertainties perturbations:
| Model dynamics perturbations | |
|---|---|
| Model physics perturbations | |
If there is a control forecast, is it perturbed? |
5. Forecast system and hindcasts
| Forecast frequency | |
|---|---|
| Forecast ensemble size | |
| Hindcast years | |
| Hindcast ensemble size | |
| On-the-fly or static hindcast set? | |
6. Other relevant information
7. Where to find more information
